Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The application provides a day electronic device 1, wherein the electronic device 1 comprises, but is not limited to, an electronic device 1 with a communication function, such as a mobile phone, an internet device (mobile internet device, MID), an electronic book, a portable player station (Play Station Portable, PSP) or a personal digital assistant (Personal Digital Assistant, PDA). Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application; . The electronic device 1 comprises a housing assembly 100, a first antenna 110 and a second antenna 120. The housing assembly 100 includes a first region 101 and a second region 102 arranged along a length direction of the electronic device 1. The first antenna 110 is disposed in the first area 101, the polarization direction of the first antenna 110 is vertical polarization, and the radiation aperture of the first antenna 110 faces the direction of the first area 101 away from the second area 102. The second antenna 120 is disposed in the first area 101, the second antenna 120 is disposed at an interval from the first antenna 110, a polarization direction of the second antenna 120 is perpendicular to a polarization direction of the second antenna 120, and the polarization direction of the second antenna 120 is the same as that of the first antenna 110, and a radiation aperture of the second antenna 120 is the same as that of the first antenna 110.
Furthermore, it should be noted that the terms "first," "second," and the like in the description and in the claims of the present application and in the foregoing figures are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. In this embodiment, the arrangement direction of the first radiator 111 to the second radiator 121 is illustrated as a first direction D1, and the direction of the first region 101 away from the second region 102 is illustrated as a second direction D2. In the present embodiment, the first direction D1 is perpendicular to the second direction D2, and in the present embodiment, the first direction D1 is taken as an X-axis positive direction, and the second direction D2 is taken as a Y-axis positive direction as an example.
The housing assembly 100 includes a plate body for carrying the first antenna 110 and the second antenna 120. The housing assembly 100 may be a middle frame, or a battery cover, or a combination of a middle frame and a battery cover of the electronic device 1; alternatively, the housing assembly is simply a plate carrying the first antenna 110 and the second antenna 120.
The housing 100 includes a first area 101 and a second area 102 arranged along a length direction (a first direction D1) of the electronic device 1, where the first area 101 is located at a top of the electronic device 1 relative to the second area 102 when the electronic device 1 is in a portrait state, and the second area 102 is located at a bottom of the electronic device 1 relative to the first area 101.
In this embodiment, the first antenna 110 and the second antenna 120 are antennas using Ultra Wide Band (UWB) technology. The first antenna 110 and the second antenna 120 transmit data using non-sinusoidal narrow pulses on the order of nanoseconds to microseconds. The working frequency ranges of the first antenna 110 and the second antenna 120 of the UWB technology are from 3.1GHz to 10.6GHz, the frequency band center frequencies of the first antenna 110 and the second antenna 120 of the UWB technology are 6.5GHz and 8GHz, and the bandwidth is more than or equal to 500 MHz.
The radiation aperture of the antenna is an opening in the main beam direction of the antenna, and the opening is oriented in the same direction as the main beam. Therefore, the radiation aperture of the first antenna 110 refers to an opening of the first antenna 110 in the main beam direction, and the opening of the main beam of the first antenna 110 is oriented in the same direction as the main beam of the first antenna 110. The radiation aperture of the second antenna 120 refers to an opening of the main beam direction of the second antenna 120, and the opening of the main beam of the second antenna 120 is oriented in the same direction as the main beam of the second antenna 120. The orientation of the antenna radiation aperture and the orientation of the antenna main beam. Therefore, the radiation aperture of the first antenna 110 is oriented, that is, the main beam of the first antenna 110 is oriented. The radiation aperture of the second antenna 120 is oriented in the main beam of the second antenna 120.
In this embodiment, the radiation aperture of the first antenna 110 faces the direction in which the first region 101 is away from the second region 102. When the electronic device 1 is in the portrait state, the first area 101 is located at the top of the electronic device 1, and the second area 102 is located at the bottom of the electronic device 1. The main beam of the first antenna 110 is directed in a direction in which the first region 101 is away from the second region 102. The radiation aperture of the first antenna 110 is directed toward the first area 101 and away from the second area 102, so that the upper half radiation efficiency of the first antenna 110 is better, and thus the first antenna 110 has a better communication effect, which will be described in detail later with reference to a specific structure and a simulation diagram of an embodiment of the electronic device 1. Accordingly, the radiation aperture of the second antenna 120 is oriented in the same direction as the radiation aperture of the first antenna 110, i.e., the radiation aperture of the second antenna 120 is oriented in a direction in which the first region 101 is away from the second region 102. The first area 101 is located at the top of the electronic device when the electronic device 1 is in the portrait position, and the main beam of the second antenna 120 is directed in a direction in which the first area 101 is away from the second area 102. The radiation aperture of the second antenna 120 is directed toward the first area 101 and away from the second area 102, so that the upper hemisphere of the second antenna 120 has better radiation efficiency, and thus the second antenna 120 has better communication effect, which will be described in detail later with reference to a specific structure and a simulation diagram of an embodiment of the electronic device 1.
Referring to fig. 2 together, fig. 2 is a schematic diagram of the electronic device in fig. 1 when receiving and transmitting electromagnetic wave signals. In the present schematic diagram, at P1 The point represents the first antenna 110, denoted by P2 The second antenna 120 is represented by a dot, P3 The dots represent the position where the electromagnetic wave signal comes in; p (P)4 Point representation P1 And P2 The midpoint of the connection line. In the present embodiment, θ1 Representing P1 P2 Connection line and P3 P1 An included angle between the connecting lines; θ2 Representing P1 P2 Connection line and P3 P2 Included angle between the connecting lines; θ represents P1 P2 Is connected with P3 P4 Included angle between the connecting lines; alpha represents the complementary angle of theta; d represents P3 P4 A distance therebetween; λ represents the wavelength of electromagnetic wave signals transmitted and received by the first antenna 110 and the second antenna 120; f represents the frequency of the electromagnetic wave signal transmitted and received by the first antenna 110 and the second antenna 120; d, dmax The maximum value of the pitches of the first antenna 110 and the second antenna 120 is shown.
Wherein D is far greater than lambda, and θ is1 ≈θ2 ≈θ
Since the first antenna 110 and the second antenna 120 are antennas using UWB technology, that is, the first antenna 110 and the second antenna 120 are UWB antennas, the first antenna and the second antenna are:
f ranges from 6.25GHz to 8.25GHz;
in response to this, the control unit,
lambda ranges from 36.4mm to 48mm, and there are:
the lambda/2 range is 18.2mm to 24mm.
dmax ＝18mm；
d1 ＝dcosθ＝dsinα (1)
Time difference t of electromagnetic wave signal reaching first antenna 110 and second antenna 1201 The method comprises the following steps:
wherein c represents the speed of light due to t1 Indicating the time difference of arrival of the electromagnetic wave signal at the first antenna 110 and the second antenna 120, and therefore is also referred to as the time difference of arrival (Time Difference of Arrival, TDOA)
The electromagnetic wave signal reaches the phase difference of the first antenna 110 and the second antenna 120The method comprises the following steps:
due toIndicating that the electromagnetic wave signal reaches the phase difference of the first antenna 110 and the second antenna 120, and thus is also referred to as the arrival phase difference (Phase Difference of Arrival, PDOA).
Wherein α represents the Angle of Arrival (AOA). As can be seen from (4), angle of arrival (AOA) α and phase difference of arrival (PDOA)And (5) correlation.
Referring to fig. 3 and fig. 4 together, fig. 3 is a PDOA data table of the electronic device in fig. 1 at different pitch angles; fig. 4 is a schematic view of PDOA curves for pitch angles ranging from-90 ° to 90 ° in fig. 3. In fig. 3, the vertical axis is the pitch angle of the electronic device 1 in degrees (°); the horizontal axis is AOA. In fig. 4, the vertical axis represents PDOA, the horizontal axis represents AOA, and the curve series 1 to 19 are PDOA curves when the pitch angle of the electronic device 1 is-90 ° to 90 °. For example, the curve series 1 is a PDOA curve when the pitch angle of the electronic apparatus 1 is-90 °, and the curve series 19 is a PDOA curve when the pitch angle of the electronic apparatus 1 is-90 °. As can be seen from fig. 4, the curves substantially coincide, i.e. the PDOA in the electronic device 1 provided in the embodiment of the present application converges when the electronic device 1 is at different pitch angles. It can be seen that when the polarization direction of the first antenna 110 in the electronic device 1 is vertical polarization and the polarization direction of the second antenna 120 is vertical polarization, the PDOA in the electronic device 1 is converged when the electronic device 1 is at different pitch angles. The PDOA in the electronic device 1 converges when the electronic device 1 is at different pitch angles, so that the result of the AOA obtained based on the calculation of the PDOA is accurate, and the positioning result when the electronic device 1 is positioned is accurate.
Referring to fig. 5, fig. 5 is a schematic diagram of an electronic device according to an embodiment of the present application. In this embodiment, the electronic device 1 has a top 1a and a bottom 1b. The top 1a is a part which is positioned above the electronic device 1 when the electronic device is placed on a vertical screen; while the bottom 1b is opposite to the top 1a, said bottom 1b referring to the part of the electronic device 1 that is located below when it is placed on a vertical screen. In this embodiment, the first region 101 is disposed corresponding to the top 1a, and the second region 102 is disposed corresponding to the bottom 1b.
In this embodiment, the electronic device 1 includes a first side 11, a second side 12, a third side 13, and a fourth side 14 that are connected end to end in sequence. The first side 11 is opposite to the third side 13 and arranged at intervals, the second side 12 is opposite to the fourth side 14 and arranged at intervals, the second side 12 is respectively connected with the first side 11 and the third side 13 in a bending manner, and the fourth side 14 is respectively connected with the first side 11 and the third side 13 in a bending manner. The connection between the first side 11 and the second side 12, the connection between the second side 12 and the third side 13, the connection between the third side 13 and the fourth side 14, and the connection between the fourth side 14 and the first side 11 all form angles of the electronic device 1. The first side 11 is a top edge, the second side 12 is a right edge, the third side 13 is a lower edge, and the fourth side 14 is a left edge. The angle formed by the first side 11 and the second side 12 is the upper right angle, and the angle formed by the first side 11 and the fourth side 14 is the upper left angle.
In this embodiment, the first side 11 and the third side 13 are short sides of the electronic device 1, the second side 12 and the fourth side 14 are long sides of the electronic device 1, and in other embodiments, the lengths of the first side 11, the second side 12, the third side 13 and the fourth side 14 may be other, for example, the lengths of the first side 11, the second side 12, the third side 13 and the fourth side 14 are equal.
In this embodiment, the top 1a of the electronic device 1 includes the first side 11, an angle formed by the first side 11 and the second side 12, and an angle formed by the first side 11 and the fourth side 14. When the electronic device 1 is in the portrait state, the first area 101 is located at the top 1a, and the second area 102 is located at the bottom 1b.
In the present embodiment, the first area 101 where the first antenna 110 and the second antenna 120 are located is illustrated as being located at the top 1a of the electronic device 1. When the first area 101 where the first antenna 110 and the second antenna 120 are located is disposed corresponding to the top 1a of the electronic device 1, the upper hemisphere radiation efficiency of each antenna (the first antenna 110 and the second antenna 120 in the present embodiment) in the electronic device 1 is better, so that the electronic device 1 has a better communication effect.
Referring to fig. 6, fig. 6 is a diagram illustrating a first antenna of the electronic device in fig. 1. In fig. 6, the frequency of the electromagnetic wave signal transmitted and received by the first antenna 110 is 6.5GHz as an example. The radiation Efficiency (Radiation Efficiency, rad. Effect.) is-2.617 dB, the Total Efficiency (Total Efficiency, tot. Effect.) is-2.837 dB, and the Gain (improved Gain, rlzd. Gain.) is 2.195dBi. As can be seen from the simulation chart, the radiation aperture of the first antenna 110 in the present embodiment is directed toward the first area 101 and away from the second area 102, so that the radiation efficiency of the upper hemisphere of the electronic device 1 is better, that is, the coverage of the electromagnetic wave signal on the top 1a of the electronic device 1 can be improved.
Referring to fig. 7, fig. 7 is a diagram illustrating a second antenna of the electronic device in fig. 1. In fig. 7, the frequency of the electromagnetic wave signal transmitted and received by the second antenna 120 is 6.5GHz as an example. The radiation Efficiency (Radiation Efficiency, rad. Effect.) is-2.489 dB, the Total Efficiency (Total Efficiency, tot. Effect.) is-2.679 dB, and the Gain (improved Gain, rlzd. Gain.) is 2.017dBi. As can be seen from the simulation chart, the radiation aperture of the second antenna 120 in the present embodiment is directed toward the first area 101 and away from the second area 102, so that the radiation efficiency of the upper hemisphere of the electronic device 1 is better, that is, the coverage of the electromagnetic wave signal on the top 1a of the electronic device 1 can be improved.
In this embodiment, the frequency bands of the electromagnetic wave signals supported by the first antenna 110 and the second antenna 120 are the same, that is, the antennas in the electronic device 1 are single-frequency antennas.
Referring to fig. 1 and 8 together, fig. 8 is a cross-sectional view of the first antenna of the electronic device of fig. 1 along line A-A. In the present embodiment, the first antenna 110 has a first radiator 111. The first radiator 111 has a first feeding point 112 and a plurality of first grounding points 113 arranged at intervals. The first feeding point 112 is configured to receive a first excitation signal so that the first radiator 111 transmits and receives an electromagnetic wave signal according to the first excitation signal. The first feeding point 112 is directed away from the second region 102 compared to the plurality of first grounding points 113. The radiating aperture of the first antenna 110 faces in a direction away from the plurality of first ground points 113 toward the first feed point 112. The plurality of first grounding points 113 are spaced apart from the first feeding point 112, and the plurality of first grounding points 113 are grounded. The arrangement direction of the plurality of first grounding points 113 is perpendicular to the arrangement direction of the first region 101 and the second region 102.
In this embodiment, the plurality of first grounding points 113 are spaced apart from the first feeding point 112, and the plurality of first grounding points 113 are grounded. When the electronic device 1 is in the portrait state, the first ground point 113 is located away from the top 1a of the electronic device 1 compared to the first feeding point 112. In the schematic diagram of the present embodiment, the number of the plurality of first grounding points 113 is exemplified as 5, and it should be understood that the electronic device 1 provided in the present application is not limited.
In fig. 8, the feeding point 112 of the first radiator 111 is electrically connected to a signal source via a feeding line 117, and has received an excitation signal. The grounding point 113 of the first radiator 111 is connected to a ground electrode through a grounding wire 118, and in the present embodiment, the case assembly 100 is illustrated as an example of the ground electrode. As can be seen from fig. 8, the first radiator 111, the feed line 117 and the ground line 118 are shaped like a tilted F, and thus are called planar inverted F antennas.
The second antenna 120 has a second radiator 121, and the second radiator 121 has a second feeding point 122 and a plurality of second grounding points 123 arranged at intervals. The second feeding point 122 is configured to receive a second excitation signal so that the second radiator 121 receives and transmits an electromagnetic wave signal according to the second excitation signal. In this embodiment, the arrangement direction of the first feeding point 112 and the second feeding point 122 is the same as the arrangement direction of the first radiator 111 and the second radiator 121. The second feeding point 122 is opposite to the second region 102 compared to the plurality of second grounding points 123, the radiation caliber of the second antenna 120 faces the direction in which the second feeding point 122 is opposite to the second grounding points 123, and the arrangement direction of the plurality of second grounding points 123 is perpendicular to the arrangement direction of the first region 101 and the second region 102.
In this embodiment, the plurality of second grounding points 123 are spaced apart from the second feeding point 122, and the plurality of second grounding points 123 are grounded. When the electronic device 1 is in the portrait state, the second ground point 123 is located away from the top 1a of the electronic device 1 compared to the second feeding point 122. In the schematic diagram of the present embodiment, the number of the plurality of second grounding points 123 is exemplified as 5, and it should be understood that the electronic device 1 provided in the present application is not limited.
In this embodiment, the first antenna 110 and the second antenna 120 are both configured to transmit and receive electromagnetic wave signals in a first frequency band, and the first radiator 111 and the second radiator 112 have the same size in the radiation aperture direction of the first antenna 110.
Referring to fig. 9, fig. 9 is a schematic structural diagram of an electronic device according to another embodiment of the present application. In this embodiment, the electronic device 1 includes a housing assembly 100, a first antenna 110, and a second antenna 120. The housing assembly 100 includes a first region 101 and a second region 102 arranged along a length direction of the electronic device 1. The first antenna 110 is disposed in the first area 101, the polarization direction of the first antenna 110 is vertical polarization, and the radiation aperture of the first antenna 110 faces the direction of the first area 101 away from the second area 102. The second antenna 120 is disposed at intervals with the first antenna 110, the polarization direction of the second antenna 120 is vertical polarization, the polarization direction of the second antenna 120 is the same as the polarization direction of the first antenna 110, and the radiation aperture of the second antenna 120 is the same as the radiation aperture of the first antenna 110. In this embodiment, the electronic device 1 further includes a third antenna 130 and a fourth antenna 140. The third antenna 130 is disposed in the first area 101, the polarization direction of the third antenna 130 is vertical polarization, the polarization direction of the third antenna 130 is the same as the polarization direction of the first antenna 110, the radiation aperture of the third antenna 130 faces the direction of the first area 101 away from the second area 102, the third antenna 130 is disposed between the first antenna 110 and the second antenna 120, and the third antenna 130 is disposed at intervals with the first antenna 110 and the second antenna 120, respectively. The fourth antenna 140 is disposed in the first area 101, the polarization direction of the fourth antenna 140 is vertical, the polarization direction of the fourth antenna 140 is the same as the polarization direction of the third antenna 130, the radiation aperture of the fourth antenna 140 is the same as the radiation aperture of the third antenna 130, and the fourth antenna 140 is disposed on a side of the first antenna 110 facing away from the third antenna 130. The first antenna 110 and the second antenna 120 are both configured to receive and transmit electromagnetic wave signals in a first frequency band, and the third antenna 130 and the fourth antenna 140 are both configured to receive and transmit electromagnetic wave signals in a second frequency band, where the first frequency band is not equal to the second frequency band.
In this embodiment, since the first frequency band is not equal to the second frequency band, the electronic device 1 is a dual-frequency electronic device. The electronic device 1 is a dual-frequency electronic device 1, so that the electronic device 1 can support the transmission and reception of electromagnetic wave signals with more frequency bands, that is, can utilize more frequency bands to communicate with other electronic devices, and therefore, the communication performance of the electronic device 1 is higher.
In this embodiment, the first frequency band is larger than the second frequency band. In other embodiments, the first frequency band may also be smaller than the second frequency band.
Referring to fig. 10, fig. 10 is a schematic structural diagram of an electronic device according to another embodiment of the present application. In this embodiment, the electronic device 1 includes a housing assembly 100, a first antenna 110, and a second antenna 120. The housing assembly 100 includes a first region 101 and a second region 102 arranged along a length direction of the electronic device 1. The first antenna 110 is disposed in the first area 101, the polarization direction of the first antenna 110 is vertical polarization, and the radiation aperture of the first antenna 110 faces the direction of the first area 101 away from the second area 102. The second antenna 120 is disposed at intervals with the first antenna 110, the polarization direction of the second antenna 120 is vertical polarization, the polarization direction of the second antenna 120 is the same as the polarization direction of the first antenna 110, and the radiation aperture of the second antenna 120 is the same as the radiation aperture of the first antenna 110. In this embodiment, the electronic device 1 further includes a third antenna 130 and a fourth antenna 140. The third antenna 130 is disposed in the first area 101, the polarization direction of the third antenna 130 is vertical polarization, the polarization direction of the third antenna 130 is the same as the polarization direction of the first antenna 110, the radiation aperture of the third antenna 130 faces the direction of the first area 101 away from the second area 102, the third antenna 130 is disposed between the first antenna 110 and the second antenna 120, and the third antenna 130 is disposed at intervals with the first antenna 110 and the second antenna 120, respectively. The fourth antenna 140 is disposed in the first area 101, the polarization direction of the fourth antenna 140 is vertical, the polarization direction of the fourth antenna 140 is the same as the polarization direction of the third antenna 130, the radiation aperture of the fourth antenna 140 is oriented in the same direction as the radiation aperture of the third antenna 130, and the fourth antenna 140 is disposed on a side of the second antenna 120 facing away from the third antenna 130. The first antenna 110 and the second antenna 120 are both configured to receive and transmit electromagnetic wave signals in a first frequency band, and the third antenna 130 and the fourth antenna 140 are both configured to receive and transmit electromagnetic wave signals in a second frequency band, where the first frequency band is not equal to the second frequency band.
In this embodiment, since the first frequency band is not equal to the second frequency band, the electronic device 1 is a dual-frequency electronic device. The electronic device 1 is a dual-frequency electronic device 1, so that the electronic device 1 can support the transmission and reception of electromagnetic wave signals with more frequency bands, that is, can utilize more frequency bands to communicate with other electronic devices, and therefore, the communication performance of the electronic device 1 is higher.
In this embodiment, the first frequency band is larger than the second frequency band. In other embodiments, the first frequency band may also be smaller than the second frequency band.
Referring to fig. 11 together, fig. 11 is an enlarged view of a part of the electronic device in fig. 9. The first antenna 110 includes a first radiator 111, the first radiator 111 having a first feeding point 112, the first feeding point 112 being configured to receive a first excitation signal so that the first radiator 111 transmits and receives an electromagnetic wave signal according to the first excitation signal. The second antenna 120 includes a second radiator 121, the second radiator 121 having a second feeding point 122, the second feeding point 122 being configured to receive a second excitation signal such that the second radiator 121 transmits and receives an electromagnetic wave signal according to the second excitation signal. The third antenna 130 includes a third radiator 131, the third radiator 131 having a third feeding point 132, the third feeding point 132 being configured to receive a third excitation signal such that the third radiator 131 transmits and receives an electromagnetic wave signal according to the third excitation signal. The fourth antenna 140 includes a fourth radiator 141, the fourth radiator 141 having a fourth feeding point 142, the fourth feeding point 142 being configured to receive a fourth excitation signal such that the fourth radiator 141 transmits and receives an electromagnetic wave signal according to the fourth excitation signal.
In this embodiment, each radiator has a feeding point, each feeding point can receive an excitation signal, and each radiator transmits and receives an electromagnetic wave signal according to the excitation signal, so that each radiator transmits and receives the electromagnetic wave signal relatively independently, and mutual interference when the radiator transmits and receives the electromagnetic wave signal is reduced.
In this embodiment, the first antenna 110 further includes a plurality of first ground points 113 arranged at intervals. The first feeding point 112 is directed away from the second region 102 compared to the plurality of first grounding points 113. The radiating aperture of the first antenna 110 faces in a direction away from the plurality of first ground points 113 toward the first feed point 112. The arrangement direction of the plurality of first grounding points 113 is perpendicular to the arrangement direction of the first region 101 and the second region 102.
The second antenna 120 further includes a plurality of second ground points 123 spaced apart from each other. The second feeding point 122 is away from the second region 102 compared to the plurality of second grounding points 123. The radiating aperture of the second antenna 120 faces in a direction away from the plurality of second ground points 123 towards the second feeding point 122. The arrangement direction of the plurality of second grounding points 123 is perpendicular to the arrangement direction of the first region 101 and the second region 102. The second radiator 112 is equal in size to the first radiator 111 in the radiation aperture direction of the first antenna 110.
The third radiator 131 further has a plurality of third grounding points 133 arranged at intervals. The third feeding point 132 is directed away from the second region 102 compared to the plurality of third grounding points 133. The radiating aperture of the third antenna 120 faces in a direction away from the plurality of third ground points 132 toward the third feed point 132. The arrangement direction of the third grounding points 133 is perpendicular to the arrangement direction of the first region 101 and the second region 102. In the present embodiment, the radiation aperture of the third antenna 130 is oriented in the same direction as the radiation aperture of the first antenna 110.
The fourth radiator 141 further has a plurality of fourth ground points 143 arranged at intervals. The fourth feeding point 142 is directed away from the second region 102 compared to the plurality of fourth grounding points 143. The fourth feeding point 142 is directed away from the second region 102 compared to the plurality of fourth grounding points 143. The radiation aperture of the fourth antenna 140 faces in a direction in which the fourth feeding point 142 faces away from the fourth ground point 143. The arrangement direction of the fourth grounding points 143 is perpendicular to the arrangement direction of the first region 101 and the second region 102. In the present embodiment, the radiation aperture of the fourth antenna 140 is oriented in the same direction as the radiation aperture of the third antenna 130. The fourth radiator 141 and the third radiator 131 have the same size in the radiation aperture direction of the first antenna 110. In this embodiment, the first frequency band is larger than the second frequency band, and therefore, the size of the third radiator 131 in the radiation aperture direction of the first antenna 110 is larger than the size of the first radiator 111 in the radiation aperture direction of the first antenna 110.
Referring to fig. 12, fig. 12 is a schematic structural diagram of an electronic device according to another embodiment of the present disclosure. In this embodiment, the electronic device 1 includes a housing assembly 100, a first antenna 110, and a second antenna 120. The housing assembly 100 includes a first region 101 and a second region 102 arranged along a length direction of the electronic device 1. The first antenna 110 is disposed in the first region 101. The first antenna 110 includes a first radiator 111, and the first radiator 111 includes a first feeding point 112 and a second feeding point 122 which are spaced apart from each other along the radiation aperture direction. The first feeding point 112 is configured to receive a first excitation signal so that the first radiator 111 receives and transmits electromagnetic wave signals in a first frequency band, and the second feeding point 122 is configured to receive a second excitation signal so that the first radiator 111 receives and transmits electromagnetic wave signals in a second frequency band. The second antenna 120 has a second radiator 121, where the second radiator 121 has a third feeding point 132 and a fourth feeding point 142 that are disposed at intervals along the radiation aperture direction, the third feeding point 132 is configured to receive a third excitation signal so that the second radiator 121 receives and transmits an electromagnetic wave signal of a first frequency band, and the fourth feeding point 142 is configured to receive a fourth excitation signal so that the second radiator 121 receives and transmits an electromagnetic wave signal of a second frequency band, where the first frequency band is not equal to the second frequency band. In other words, the first radiator 111 transmits and receives electromagnetic wave signals of the first frequency band through the first feeding point 112, and the second radiator 121 transmits and receives electromagnetic wave signals of the first frequency band through the third feeding point 132. The first radiator 111 transmits and receives electromagnetic wave signals of a second frequency band through the second feeding point 122, and the second radiator 121 transmits and receives electromagnetic wave signals of the second frequency band through the fourth feeding point 142.
In this embodiment, the first radiator 111 has a first feeding point 112 and a second feeding point 122 that are disposed at intervals along the radiation aperture direction, so that the first radiator 111 can transmit and receive electromagnetic wave signals in a first frequency band and a second frequency band, thereby realizing multiplexing of the radiators. The second radiator 121 is provided with a third feeding point 132 and a fourth feeding point 142 which are arranged at intervals along the radiation caliber direction, so that the second radiator 121 can receive and transmit electromagnetic wave signals of a first frequency band and a second frequency band, and multiplexing of the radiators is realized. In this embodiment, the first frequency band is smaller than the second frequency band. It will be appreciated that in other embodiments, the first frequency band is greater than the second frequency band.
In this embodiment, the first frequency band is not equal to the second frequency band. Thus, the electronic device 1 is a dual-frequency electronic device. The electronic device 1 is a dual-frequency electronic device, so that the electronic device 1 can support the transmission and reception of electromagnetic wave signals with more frequency bands, that is, can utilize more frequency bands to communicate with other electronic devices, and therefore, the communication performance of the electronic device 1 is higher.
Referring to fig. 12, the first radiator 111 further has a plurality of first grounding points 113 disposed at intervals, the plurality of first grounding points 113 are located between the first feeding point 112 and the second feeding point 122, and the plurality of first grounding points 113 are grounded. In this embodiment, the arrangement direction of the plurality of first grounding points 113 is perpendicular to the arrangement direction of the first region 101 and the second region 102. The second radiator 121 further has a plurality of second grounding points 123 disposed at intervals, the plurality of second grounding points 123 are located between the third feeding point 132 and the fourth feeding point 142, and the plurality of second grounding points 123 are grounded. In this embodiment, the arrangement direction of the plurality of second grounding points 123 is perpendicular to the arrangement direction of the first region 101 and the second region 102.
In this embodiment, the plurality of first grounding points 113 are located between the first feeding point 112 and the second feeding point 122, which on one hand plays a role of grounding the first radiator 111, and on the other hand can separate a radiation portion (abbreviated as a first radiation portion) of the first radiator 111 for receiving and transmitting electromagnetic wave signals of a first frequency band from a radiation portion (abbreviated as a second radiation portion) of the first radiator 111 for receiving and transmitting electromagnetic wave signals of a second frequency band, so as to reduce or even avoid interference of the first excitation signal received by the first feeding point 112 to the second radiation portion for receiving and transmitting electromagnetic wave signals of the second frequency band when the first excitation signal received by the second feeding point 122 is transmitted to the first radiation portion.
Specifically, in the present embodiment, the first radiator 111 includes a first radiating portion 1111, a first grounding portion 1112, and a second radiating portion 1113, which are connected in this order along the radiation aperture direction. The first radiating portion 1111 has the first feeding point 112, the first grounding portion 1112 has the plurality of first grounding points 1113, and the second radiating portion 1113 has the second feeding point 122. In this embodiment, the first frequency band is smaller than the second frequency band. The first radiating portion 1111 has a larger size in the radiation aperture direction of the first antenna 110 than the second radiating portion 1113.
The second radiator 121 has a third radiating portion 1211, a second grounding portion 1212, and a fourth radiating portion 1213, which are connected in this order along the radiation aperture direction. The third radiating portion 1211 has the third feeding point 132, the second grounding portion 1212 has the plurality of second grounding points 123, the fourth radiating portion 1213 has the fourth feeding point 142, and a size of the third radiating portion 1211 in a radiation aperture direction of the second antenna 120 is larger than a size of the fourth radiating portion 1213 in the radiation aperture direction of the second antenna 120.
In this embodiment, the connection line between the first feeding point 112 and the second feeding point 122 is perpendicular to the arrangement direction of the plurality of first grounding points 113; the connection line between the third feeding point 132 and the fourth feeding point 142 is perpendicular to the arrangement direction of the plurality of second grounding points 123.
Referring to fig. 13, fig. 13 is a schematic structural diagram of an electronic device according to another embodiment of the present application. The electronic device 1 comprises a housing assembly 100, a first antenna 110 and a second antenna 120. The housing assembly 100 includes a first region 101 and a second region 102 arranged along a length direction of the electronic device 1. The first antenna 110 is disposed in the first area 101, the polarization direction of the first antenna 110 is vertical polarization, and the radiation aperture of the first antenna 110 faces the direction of the first area 101 away from the second area 102. The second antenna 120 is disposed in the first area 101, the second antenna 120 is disposed at an interval from the first antenna 110, a polarization direction of the second antenna 120 is perpendicular to a polarization direction of the second antenna 120, and the polarization direction of the second antenna 120 is the same as that of the first antenna 110, and a radiation aperture of the second antenna 120 is the same as that of the first antenna 110.
The first antenna 110 and the second antenna 120 are both configured to transmit and receive electromagnetic wave signals in a first frequency band. In the present embodiment, the electronic device 1 further includes a third antenna 130 and a fourth antenna 140. The third antenna 130 is disposed in the first area 101, the polarization direction of the third antenna 130 is vertical polarization, the third antenna 130 is located at one side of the first antenna 110, and the radiation aperture of the third antenna 130 faces the direction of the first area 101 adjacent to the second area 102. The fourth antenna 140 is disposed in the first area 101, the polarization direction of the fourth antenna 140 is vertical polarization, and the polarization direction of the fourth antenna 140 is the same as the polarization direction of the third antenna 130, the fourth antenna 140 is located at one side of the second antenna 120, and the fourth antenna 140 and the third antenna 130 are located at the same side of the first antenna 110, where the third antenna 130 and the fourth antenna 140 are both configured to transmit and receive electromagnetic wave signals in a second frequency band, and the first frequency band is not equal to the second frequency band.
When the polarization direction of the first antenna 110 in the electronic device 1 is vertical polarization and the polarization direction of the second antenna 120 is vertical polarization, when the electronic device 1 receives and transmits electromagnetic wave signals in the first frequency band, the PDOA of the electronic device 1 converges when the electronic device 1 is at different pitch angles.
When the polarization direction of the third antenna 130 in the electronic device 1 is vertical polarization and the polarization direction of the fourth antenna 140 is vertical polarization, the PDOA of the electronic device 1 converges when the electronic device 1 is at different pitch angles when the electronic device 1 receives and transmits electromagnetic wave signals of the second frequency band.
In this embodiment, since the first frequency band is not equal to the second frequency band, the electronic device 1 is a dual-frequency electronic device. The electronic device 1 is a dual-frequency electronic device, so that the electronic device 1 can support the transmission and reception of electromagnetic wave signals with more frequency bands, that is, can utilize more frequency bands to communicate with other electronic devices, and therefore, the communication performance of the electronic device 1 is higher.
In this embodiment, the first antenna 110 and the second antenna 120 are both configured to transmit and receive electromagnetic wave signals in a first frequency band, and the first radiator 111 and the second radiator 121 have the same size in the radiation aperture direction of the first antenna 110. The third antenna 130 and the fourth antenna 140 are both configured to transmit and receive electromagnetic wave signals in the second frequency band. The third radiator 131 and the fourth radiator 141 have the same size in the radiation aperture direction of the third antenna 130. The first frequency band is smaller than the second frequency band, and thus, the size of the third radiator 131 in the radiation aperture direction of the first antenna 110 is smaller than the size of the first radiator 111 in the radiation aperture direction of the first antenna 110. In other embodiments, the first frequency band may also be greater than the second frequency band. When the first frequency band is larger than the second frequency band, the size of the third radiator 131 in the radiation aperture direction of the first antenna 110 is larger than the size of the first radiator 111 in the radiation aperture direction of the first antenna 110.
In this embodiment, the radiation aperture of the third antenna 130 faces the direction in which the first region 101 is away from the second region 102; accordingly, the radiation aperture of the fourth antenna 140 is oriented toward the same direction as the radiation aperture of the third antenna 130.
Referring to fig. 14, fig. 14 is a schematic structural diagram of an electronic device according to another embodiment of the present application. The electronic device 1 comprises a housing assembly 100, a first antenna 110 and a second antenna 120. The housing assembly 100 includes a first region 101 and a second region 102 arranged along a length direction of the electronic device 1. The first antenna 110 is disposed in the first area 101, the polarization direction of the first antenna 110 is vertical polarization, and the radiation aperture of the first antenna 110 faces the direction of the first area 101 away from the second area 102. The second antenna 120 is disposed in the first area 101, the second antenna 120 is disposed at an interval from the first antenna 110, a polarization direction of the second antenna 120 is perpendicular to a polarization direction of the second antenna 120, and the polarization direction of the second antenna 120 is the same as that of the first antenna 110, and a radiation aperture of the second antenna 120 is the same as that of the first antenna 110.
The first antenna 110 and the second antenna 120 are both used for receiving and transmitting electromagnetic wave signals in the first frequency band. The first radiator 111 and the second radiator 112 have the same size in the radiation aperture direction of the first antenna 110. In this embodiment, the electronic device 1 further includes a third antenna 130 and a fourth antenna 140. The third antenna 130 is disposed in the first area 101, the polarization direction of the third antenna 130 is vertical polarization, the third antenna 130 is disposed on one side of the first antenna 110, and the radiation aperture of the third antenna 130 faces the direction of the first area 101 adjacent to the second area 102. The fourth antenna 140 is disposed in the first area 101, the polarization direction of the fourth antenna 140 is vertical polarization, and the polarization direction of the fourth antenna 140 is the same as the polarization direction of the third antenna 130, the fourth antenna 140 is located at one side of the second antenna 120, and the fourth antenna 140 and the third antenna 130 are located at the same side of the first antenna 110, where the third antenna 130 and the fourth antenna 140 are both configured to transmit and receive electromagnetic wave signals in a second frequency band, and the first frequency band is not equal to the second frequency band. The third antenna 130 and the fourth antenna 140 are both configured to transmit and receive electromagnetic wave signals in the second frequency band, and the third radiator 131 and the fourth radiator 141 have the same size in the radiation aperture direction of the third antenna 130.
When the polarization direction of the first antenna 110 in the electronic device 1 is vertical polarization and the polarization direction of the second antenna 120 is vertical polarization, when the electronic device 1 receives and transmits electromagnetic wave signals in the first frequency band, the PDOA of the electronic device 1 converges when the electronic device 1 is at different pitch angles.
When the polarization direction of the third antenna 130 in the electronic device 1 is vertical polarization and the polarization direction of the fourth antenna 140 is vertical polarization, when the electronic device 1 receives and transmits electromagnetic wave signals in the third frequency band, the PDOA of the electronic device 1 converges when the electronic device 1 is at different pitch angles.
In this embodiment, the first antenna 110 and the second antenna 120 are both configured to transmit and receive electromagnetic wave signals in the first frequency band. The third antenna 130 and the fourth antenna 140 are both configured to transmit and receive electromagnetic wave signals in the second frequency band. In this embodiment, the first frequency band is not equal to the second frequency band, and therefore, the electronic device 1 is a dual-frequency electronic device. The electronic device 1 is a dual-frequency electronic device, so that the electronic device 1 can support the transmission and reception of electromagnetic wave signals with more frequency bands, that is, can utilize more frequency bands to communicate with other electronic devices, and therefore, the communication performance of the electronic device 1 is higher.
In the present embodiment, the first frequency band is smaller than the second frequency band, and therefore, the size of the third radiator 131 in the radiation aperture direction of the first antenna 110 is smaller than the size of the first radiator 111 in the radiation aperture direction of the first antenna 110. In other embodiments, the first frequency band may also be greater than the second frequency band. When the first frequency band is larger than the second frequency band, the size of the third radiator 131 in the radiation aperture direction of the first antenna 110 is larger than the size of the first radiator 111 in the radiation aperture direction of the first antenna 110.
In this embodiment, the radiation aperture of the third antenna 130 faces the direction in which the first area 101 is adjacent to the second area 102, in other words, when the electronic device 1 is in the portrait state, the opening of the third antenna 130 faces downward; accordingly, the radiation aperture of the fourth antenna 140 is directed in a direction in which the first region 101 is adjacent to the second region 102, in other words, the opening of the fourth antenna 140 is directed downward.
Although the radiation efficiency of the third antenna 130 when the radiation aperture of the third antenna 130 is directed in the direction in which the first area 101 is adjacent to the second area 102 is not good when the radiation aperture of the third antenna 130 is directed in the direction in which the first area 101 is away from the second area 102, the third antenna 130 may be capable of transmitting and receiving electromagnetic wave signals. Accordingly, although the radiation efficiency of the fourth antenna 140 is not good when the radiation aperture of the fourth antenna 140 faces the direction in which the first area 101 is adjacent to the second area 102, the radiation efficiency of the fourth antenna 140 is not good when the radiation aperture of the fourth antenna 140 faces the direction in which the first area 101 is away from the second area 102, and the fourth antenna 140 may be capable of transmitting and receiving electromagnetic wave signals.
In summary, in the two embodiments, when the radiation aperture of the third antenna 130 faces the direction of the first region 101 away from the second region 102, and the radiation aperture of the fourth antenna 140 faces the direction of the first region 101 away from the second region 102; alternatively, the radiation aperture of the third antenna 130 is oriented in a direction in which the first region 101 is adjacent to the second region 102, and the radiation aperture of the fourth antenna 140 is oriented in a direction in which the first region 101 is adjacent to the second region 102.
With continued reference to fig. 15, fig. 15 is an enlarged schematic view of a portion of the electronic device shown in fig. 13. In one embodiment, the first antenna 110 has a first radiator 111, the second antenna 120 has a second radiator 121, and a distance d between a center of the first radiator 111 and a center of the second radiator 1211 The method meets the following conditions: d, d1 ≤λ1 2, wherein lambda1 Is the wavelength of the electromagnetic wave signal of the first frequency band.
The first antenna 110 has a vertical polarization direction and the second antenna 120 has a vertical polarization directionAnd when the distance d between the center of the first radiator 111 and the center of the second radiator 1211 The method meets the following conditions: d, d1 ≤λ1 And/2, the convergence problem of the vertical plane pitch angle PDOA due to the influence of the surface wave can be reduced or even avoided.
In the present embodiment, the third antenna 130 has a third radiator 131, the fourth antenna 140 has a fourth radiator 141, and a distance d between a center of the third radiator 131 and a middle of the fourth radiator 1412 The method meets the following conditions: d, d2 ≤λ2 2, wherein lambda2 Is the wavelength of the electromagnetic wave signal of the second frequency band.
The third antenna 130 has a vertical polarization direction and the fourth antenna 140 has a vertical polarization direction, and the third radiator 131 has a distance d between its center and the middle of the fourth radiator 1412 The method meets the following conditions: d, d2 ≤λ2 And/2, the convergence problem of the vertical plane pitch angle PDOA due to the influence of the surface wave can be reduced or even avoided.
Referring to fig. 16, fig. 16 is a schematic structural diagram of an electronic device according to another embodiment of the present disclosure. The electronic device 1 comprises a housing assembly 100, a first antenna 110 and a second antenna 120. The housing assembly 100 includes a first region 101 and a second region 102 arranged along a length direction of the electronic device 1. The first antenna 110 is disposed in the first area 101, the polarization direction of the first antenna 110 is vertical polarization, and the radiation aperture of the first antenna 110 faces the direction of the first area 101 away from the second area 102. The second antenna 120 is disposed in the first area 101, the second antenna 120 is disposed at an interval from the first antenna 110, a polarization direction of the second antenna 120 is perpendicular to a polarization direction of the second antenna 120, and the polarization direction of the second antenna 120 is the same as that of the first antenna 110, and a radiation aperture of the second antenna 120 is the same as that of the first antenna 110. In this embodiment, the first antenna 110 and the second antenna 120 are both configured to transmit and receive electromagnetic wave signals in the first frequency band. In addition, the electronic device 1 further includes a third antenna 130 and a fourth antenna 140. The third antenna 130 is disposed in the first area 101, the polarization direction of the third antenna 130 is horizontal polarization, and the third antenna 130 is located at one side of the first antenna 110. The fourth antenna 140 is disposed in the first area 101, the polarization direction of the fourth antenna 140 is horizontal polarization, the fourth antenna 140 is located at one side of the second antenna 120, and the fourth antenna 140 and the third antenna 130 are located at the same side of the first antenna 110, where the third antenna 130 and the fourth antenna 140 are both configured to transmit and receive electromagnetic wave signals in the second frequency band. The radiation aperture of the third antenna 130 is perpendicular to the arrangement direction of the first area 101 and the second area 102, and faces the fourth antenna 140. The radiation aperture of the fourth antenna 140 is perpendicular to the arrangement direction of the first area 101 and the second area 102, and is away from the third antenna 130.
Although the convergence of the PDOA at different pitch angles of the electronic device 1 is good when the polarization direction of the third antenna 130 is horizontal polarization and when the polarization direction of the third antenna 130 is not vertical polarization, the polarization direction of the third antenna 130 may be set to be horizontal polarization because the electronic device 1 includes the first antenna 110 and the second antenna 120, thereby further increasing the selection range of the third antenna 130. Accordingly, although the convergence of the PDOA at different pitch angles of the electronic device 1 is good when the polarization direction of the fourth antenna 140 is horizontal and the polarization direction of the fourth antenna 140 is not vertical, the polarization direction of the fourth antenna 140 may be set to be horizontal because the electronic device 1 includes the first antenna 110 and the second antenna 120, and the selection range of the fourth antenna 140 is further improved.
In this embodiment, the first frequency band is equal to the second frequency band. Because the first frequency band is equal to the second frequency band, the first antenna 110, the second antenna 120, the third antenna 130 and the fourth antenna 140 in the electronic device 1 can all transmit and receive electromagnetic wave signals in the same frequency band, thereby improving the communication performance of the electronic device 1.
In this embodiment, the first frequency band is equal to the second frequency band, the dimensions of the first radiator 111, the second radiator 121, the third radiator 131, and the fourth radiator 141 in the radiation aperture direction of the first antenna 110 are equal, and the dimensions of the first radiator 111, the second radiator 121, the third radiator 131, and the fourth radiator 141 in the radiation aperture direction perpendicular to the first antenna 110 are equal.
Referring to fig. 17, fig. 17 is a schematic structural diagram of an electronic device according to another embodiment of the present application. The electronic device 1 comprises a housing assembly 100, a first antenna 110 and a second antenna 120. The housing assembly 100 includes a first region 101 and a second region 102 arranged along a length direction of the electronic device 1. The first antenna 110 is disposed in the first area 101, the polarization direction of the first antenna 110 is vertical polarization, and the radiation aperture of the first antenna 110 faces the direction of the first area 101 away from the second area 102. The second antenna 120 is disposed in the first area 101, the second antenna 120 is disposed at an interval from the first antenna 110, a polarization direction of the second antenna 120 is perpendicular to a polarization direction of the second antenna 120, and the polarization direction of the second antenna 120 is the same as that of the first antenna 110, and a radiation aperture of the second antenna 120 is the same as that of the first antenna 110. In this embodiment, the first antenna 110 and the second antenna 120 are both configured to transmit and receive electromagnetic wave signals in the first frequency band. In addition, the electronic device 1 further includes a third antenna 130 and a fourth antenna 140. The third antenna 130 is disposed in the first area 101, the polarization direction of the third antenna 130 is horizontal polarization, and the third antenna 130 is located at one side of the first antenna 110. The fourth antenna 140 is disposed in the first area 101, the polarization direction of the fourth antenna 140 is horizontal polarization, the fourth antenna 140 is located at one side of the second antenna 120, and the fourth antenna 140 and the third antenna 130 are located at the same side of the first antenna 110, where the third antenna 130 and the fourth antenna 140 are both configured to transmit and receive electromagnetic wave signals in the second frequency band. The radiation aperture of the third antenna 130 is perpendicular to the arrangement direction of the first area 101 and the second area 102, and faces the fourth antenna 140. The radiation aperture of the fourth antenna 140 is perpendicular to the arrangement direction of the first area 101 and the second area 102, and is away from the third antenna 130.
Although the convergence of the PDOA at different pitch angles of the electronic device 1 is good when the polarization direction of the third antenna 130 is horizontal polarization and when the polarization direction of the third antenna 130 is not vertical polarization, the polarization direction of the third antenna 130 may be set to be horizontal polarization because the electronic device 1 includes the first antenna 110 and the second antenna 120, thereby further increasing the selection range of the third antenna 130. Accordingly, although the convergence of the PDOA at different pitch angles of the electronic device 1 is good when the polarization direction of the fourth antenna 140 is horizontal and the polarization direction of the fourth antenna 140 is not vertical, the polarization direction of the fourth antenna 140 may be set to be horizontal because the electronic device 1 includes the first antenna 110 and the second antenna 120, and the selection range of the fourth antenna 140 is further improved.
In the present embodiment, the first antenna 110 and the second antenna 120 are both configured to transmit and receive electromagnetic wave signals in the first frequency band, and therefore, the first radiator 111 and the second radiator 112 have the same size in the radiation aperture direction of the first antenna 110. The third frequency band 130 and the fourth frequency band 140 are used for receiving and transmitting electromagnetic wave signals of the second frequency band, so that the third radiator 131 and the fourth radiator 141 have the same size in terms of the radiation aperture of the third antenna 130.
In the present embodiment, the third antenna 130 includes a third radiator 131, and the third radiator 131 includes a third feeding point 132 and a plurality of third grounding points 133 arranged at intervals. The arrangement direction of the third feeding point 132 and the plurality of third grounding points 133 is perpendicular to the arrangement direction of the first region 101 and the second region 102. The arrangement direction of the plurality of third grounding points 133 is the same as the arrangement direction of the first region 101 and the second region 102.
The fourth antenna 140 has a fourth radiator 141, and the fourth antenna 140 has a fourth feeding point 141 and a plurality of fourth grounding points 142 arranged at intervals. The arrangement direction of the fourth feeding point 142 and the fourth grounding points 143 is perpendicular to the arrangement direction of the first region 101 and the second region 102. That is, the arrangement direction of the plurality of fourth ground points 142 is the same as the arrangement direction of the plurality of third ground points 132. The arrangement direction of the fourth grounding points 143 is the same as the arrangement direction of the first region 101 and the second region 102.
In this embodiment, the first frequency band is not equal to the second frequency band. Since the first frequency band is not equal to the second frequency band, the electronic device 1 is a dual-frequency electronic device. The electronic device 1 is a dual-frequency electronic device, so that the electronic device 1 can support the transmission and reception of electromagnetic wave signals with more frequency bands, that is, can utilize more frequency bands to communicate with other electronic devices, and therefore, the communication performance of the electronic device 1 is higher.
When the first frequency band is not equal to the second frequency band, the dimensions of the first radiator 111, the second radiator 121, the third radiator 131 and the fourth radiator 141 in the radiation aperture direction of the first antenna 110 are equal, the dimensions of the first radiator 111 and the second radiator 112 in the aperture direction perpendicular to the first antenna 110 are equal, the dimensions of the third radiator 131 and the fourth radiator 141 in the aperture direction perpendicular to the first antenna 110 are equal, and the dimensions of the first radiator 111 and the third radiator 131 in the radiation aperture direction perpendicular to the first antenna 110 are not equal.
In this embodiment, the first frequency band is smaller than the second frequency band. The third radiator 131 has a smaller dimension in a direction perpendicular to the radiation aperture direction of the first antenna 110 than the first radiator 111 has in the radiation aperture direction of the first antenna 110; accordingly, the fourth radiator 141 has a smaller size in a radiation caliber direction perpendicular to the second antenna 120 than the second radiator 121 has in the radiation caliber direction of the second antenna 120.
In other embodiments, the first frequency band may also be greater than the second frequency band. When the first frequency band is larger than the second frequency band, the size of the third radiator 131 in the radiation aperture direction perpendicular to the first antenna 110 is larger than the size of the first radiator 111 in the radiation aperture direction of the first antenna 110; accordingly, the fourth radiator 141 has a larger size in a radiation caliber direction perpendicular to the second antenna 120 than the second radiator 121 has in the radiation caliber direction of the second antenna 120.
In combination with the electronic device 1 provided in the foregoing embodiments, the first Antenna 110 and the second Antenna 120 are both Planar Inverted-F antennas (PIFAs), or the first Antenna 110 and the second Antenna 120 are both Patch antennas (Patch antennas). In some embodiments, the antenna electronic device 1 further includes a third antenna 130 and a fourth antenna 140, where the third antenna 130 and the fourth antenna 140 are both planar inverted-F antennas, or the third antenna 130 and the fourth antenna 140 are both patch antennas.
When the first antenna 110 is a planar inverted-F antenna, the size of the first antenna 110 can be made smaller; accordingly, when the second antenna 120 is a planar inverted-F antenna, the second antenna 120 can be made smaller in size; when the third antenna 130 is a planar inverted-F antenna, the size of the third antenna 130 can be made smaller; when the fourth antenna 140 is a planar inverted-F antenna, the fourth antenna 140 can be made smaller in size.
The electronic device 1 described in the foregoing embodiments is illustrated by taking, as an example, a planar inverted-F antenna as each of the first antenna 110 and the second antenna 120 in the electronic device 1. Referring to fig. 18, fig. 18 is a schematic diagram of an electronic device according to another embodiment of the present application. In fig. 18, the first antenna 110 and the second antenna 120 are each a patch antenna. In this embodiment, the first antenna 110 includes a first radiator 111, where the first radiator 111 has a first feeding point 112, and the first feeding point 112 is configured to receive a first excitation signal, so that the first radiator 111 receives and transmits an electromagnetic wave signal of the first frequency band according to the first excitation signal. The second antenna 120 has a second radiator 121, where the second radiator 121 has a second feeding point 122, and the second feeding point 122 is configured to receive a second excitation signal, so that the second radiator 121 receives and transmits an electromagnetic wave signal of the second frequency band according to the second excitation signal.
Referring to fig. 19 and 20, fig. 19 is a perspective view of an electronic device according to an embodiment of the present disclosure; fig. 20 is a cross-sectional view of the electronic device provided in fig. 19 along line I-I. The electronic device 1 further comprises a middle frame 30, a screen 40, a circuit board 50 and a battery cover 60. The center 30, the screen 40, the circuit board 50, and the battery cover 60 are described in detail below.
The middle frame 30 is made of metal, such as aluminum magnesium alloy. The middle frame 30 generally forms a ground for the electronic device 1, and when the electronic components in the electronic device 1 need to be grounded, the middle frame 30 may be connected to ground. In addition, the ground system in the electronic device 1 includes, in addition to the middle frame 30, the ground on the circuit board 50 and the ground in the screen 40. In this embodiment, the middle frame 30 includes a frame body 310 and a frame 320. The frame 320 is bent and connected to the periphery of the frame body 310.
The screen 40 may be a display screen with display function, or may be a screen 40 integrated with display and touch functions. The screen 40 is used for displaying text, images, video, etc. The screen 40 is carried on the middle frame 30 and is located at one side of the middle frame 30.
The circuit board 50 is also typically carried by the center frame 30, and the circuit board 50 and the screen 40 are carried by opposite sides of the center frame 30. At least one or more of the respective radiators (e.g., the first radiator 111, the second radiator 121, the third radiator 131, and the fourth radiator 141) in the respective antennas, a signal source generating respective excitation signals (e.g., the first excitation signal, the second excitation signal, the third excitation signal, and the fourth excitation signal), and various matching circuits and adjusting circuits in the respective antennas may be provided on the circuit board 50.
The battery cover 60 is disposed on a side of the circuit board 50 facing away from the middle frame 30, and the battery cover 60, the middle frame 30, the circuit board 50, and the screen 40 cooperate with each other to assemble a complete electronic device 1.
In an embodiment, the electronic device 1 further includes a protective sleeve 70, where the protective sleeve 70 is at least partially sleeved on the outside of the battery cover 60, so as to protect the battery cover 60. It will be appreciated that in the schematic diagram of the present embodiment, the electronic device 1 is illustrated by taking the case that the protective cover 70 is included as an example, and in other embodiments, the electronic device 1 may not include the protective cover 70.
It should be understood that the above description of the structure of the electronic device 1 is merely a description of one form of the structure of the electronic device 1, and should not be construed as a limitation of the electronic device 1 or the antenna assembly 10.
The electronic device 1 of the related art (see the foregoing for details), the battery cover 60 and the protective case 70 have an influence on electromagnetic wave signals transmitted and received by the respective antennas in the electronic device 1. Parameters such as the thickness and dielectric constant of the battery cover 60 and the protective cover 70 affect the surface wave modes (TE mode and TM mode) of the electromagnetic wave signals supported. The surface wave modes of the electromagnetic wave signals supported by the battery cover 60 and the protective cover 70 affect the PDOA of the electronic device 1. As can be seen, the PDOA of the electronic device 1 in the related art is affected by the thickness and dielectric constant of the battery cover 60 and the protective cover 70.
In an embodiment, when the electronic device 1 is at the same pitch angle, the electronic device 1 has the first PDOA when receiving and transmitting electromagnetic wave signals in a preset frequency band and a preset direction. The electronic device 1 further includes a cover 67, where the cover 67 includes at least one of a battery cover 60 and the protective case 70, electromagnetic wave signals received and transmitted by the electronic device 1 of the electronic device 1 penetrate through the cover 67, and electromagnetic wave signals of a preset frequency band and a preset direction received and transmitted by the electronic device 1 of the electronic device 1 have a second PDOA when penetrating through the cover 67, where a difference value between the first PDOA and the second PDOA is located in a first preset range.
It should be noted that, when the electronic device 1 includes the first antenna 110 and the second antenna 120, the electronic device 1 receiving and transmitting electromagnetic wave signals in a preset frequency band and a preset direction refers to at least one of the first antenna 110 and the second antenna 120 in the electronic device 1 receiving and transmitting electromagnetic wave signals in the preset frequency band and the preset direction. When the electronic device 1 includes the first antenna 110, the second antenna 120, the third antenna 130, and the fourth antenna 140, the electronic device 1 receiving and transmitting electromagnetic wave signals in a preset frequency band and a preset direction refers to at least one of the first antenna 110, the second antenna 120, the third antenna 130, and the fourth antenna 140 receiving and transmitting electromagnetic wave signals in the preset frequency band and the preset direction in the electronic device 1.
The elevation angle may be, but is not limited to, 45 ° or 0 °, or 90 °, etc. The pitch angle may be any degree, and the pitch angle is merely for explaining a difference between the PDOA when the electronic apparatus 1 is not covered with the cover 67 and the PDOA when the electronic apparatus 1 is covered with the cover 67 when the electronic apparatus 1 is at the same pitch angle.
When the electronic device 1 is not covered by the cover 67, the electronic device 1 has a first PDO1 when receiving and transmitting electromagnetic wave signals in a preset frequency band and a preset direction. It should be noted that the cover referred to herein includes a direct contact cover and a cover spaced apart from each other. Since the electronic device 1 is not covered by the cover 67, the electronic device 1 does not pass through the cover 67 when receiving and transmitting electromagnetic wave signals of a preset frequency band and electromagnetic wave signals of a preset direction.
The second PDOA is provided when electromagnetic wave signals transmitted and received by the electronic device 1 penetrate the cover 67. The difference between the first PDOA and the second PDOA is within a first preset range, which indicates that the difference between the first PDOA and the second PDOA is smaller, or even zero.
As can be seen, in the electronic device 1 of the present embodiment, the polarization direction of the first antenna 110 is vertical polarization, and the polarization direction of the second antenna 120 is vertical polarization, so that the influence of the cover 67 on the PDOA of the electronic device 1 can be reduced or even avoided.
In an embodiment, when the electronic device 1 is at the first pitch angle, the electronic device 1 has a first PDOA when receiving and transmitting electromagnetic wave signals in a preset frequency band and a preset direction. When the electronic device 1 is at the second pitch angle, the antenna has a second PDOA when receiving and transmitting electromagnetic wave signals in a preset frequency band and a preset direction. The first pitch angle is not equal to the second pitch angle, and the difference value between the first PDOA and the second PDOA is located in a second preset range.
It should be noted that, when the electronic device 1 includes the first antenna 110 and the second antenna 120, the electronic device 1 receiving and transmitting electromagnetic wave signals in a preset frequency band and a preset direction refers to at least one of the first antenna 110 and the second antenna 120 in the electronic device 1 receiving and transmitting electromagnetic wave signals in the preset frequency band and the preset direction. When the electronic device 1 includes the first antenna 110, the second antenna 120, the third antenna 130, and the fourth antenna 140, the electronic device 1 receiving and transmitting electromagnetic wave signals in a preset frequency band and a preset direction refers to at least one of the first antenna 110, the second antenna 120, the third antenna 130, and the fourth antenna 140 receiving and transmitting electromagnetic wave signals in the preset frequency band and the preset direction in the electronic device 1.
In this embodiment, the difference between the first PDOA and the second PDOA is within the second preset range, which indicates that the difference between the first PDOA and the second PDOA is smaller, even zero, which indicates that the difference between the angles of the PDOA of the electronic device 1 is smaller when the electronic device 1 is at different pitch angles.
It will be appreciated that the values of the first PDOA in this embodiment and the first PDOA in the previous embodiment may be the same or different; the second PDOA in this embodiment may be the same as or different from the second PDOA in the previous embodiment. The values of the first preset range and the second preset range may be the same or different.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives and alterations of the above embodiments may be made by those skilled in the art within the scope of the present application, which are also to be regarded as being within the scope of the protection of the present application.