CN101436714B - Partially reflective antenna - Google Patents
Partially reflective antennaDownload PDFInfo
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- CN101436714B CN101436714BCN2007101887135ACN200710188713ACN101436714BCN 101436714 BCN101436714 BCN 101436714BCN 2007101887135 ACN2007101887135 ACN 2007101887135ACN 200710188713 ACN200710188713 ACN 200710188713ACN 101436714 BCN101436714 BCN 101436714B
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Abstract
Description
Technical field
The present invention relates to a kind of antenna of partial reflection plane, refer to a kind of antenna of partial reflection plane that promotes its aperture efficiency and can reduce the required material that expends of each micro-strip reflection units of making reflecting plate especially.
Background technology
In recent years; No matter in military or civilian application; Antenna of partial reflection plane (PartialReflective Surface Antenna) is employed widely, because of antenna of partial reflection plane has low clearance (low profile), and can use advantages such as print circuit plates making.But the aperture efficiency of the antenna of partial reflection plane of using at present is very limited, still has sizable room for promotion.
Fig. 1 is the schematic perspective view of known antenna of partial reflection plane, and wherein known antenna of partial reflection plane comprisessubstrate 11, reflectingplate 12 and most support units 131,132,133,134.Wherein,substrate 11 and reflectingplate 12 constitute by the microwave base plate of the FR-4 material of thickness 0.8mm, and reflectingplate 12 through an aforesaid majority support unit 131,132,133,134 and and maintenance one specific range between the substrate 11.On the other hand,substrate 11 has aupper surface 111, onesignal gateways 112 and is arranged at thisupper surface 111, and this rectangle slottedeye 112 is electrically connected on acoaxial cable 113 to export or to accept a high-frequency signal.
And as shown in Figure 1, the middle body on the surface of the reflectingplate 12 of known antenna of partial reflection plane is provided with anarray antenna block 14, and the area of thisarray antenna block 14 surface area of reflectingplate 12 no better than.In addition, anantenna array 141 is laid in thisarray antenna block 14, and thisantenna array 141 comprises 121micro-strip reflection units 142, and thesemicro-strip reflection units 142 also form the array of a 11X11.Anticipate promptly, thesemicro-strip reflection units 142 almost have been covered with the surface of the reflectingplate 12 of known antenna of partial reflection plane.
On the other hand, in known antenna of partial reflection plane, reflectingplate 12 is a square plate, and its length and width are 12.9cm, and the external form of aforesaidarray antenna block 14 is a square, and its length and width are 12cm.As for theantenna array 141 that is laid in thearray antenna block 14, the external form of themicro-strip reflection units 142 of its component units is a square, and their length (L) and wide (W) are 1cm.In addition, inantenna array 141, be present between the directions X between eachmicro-strip reflection units 142 and the adjacentmicro-strip reflection units 142 apart from distance (Dy1) between (Dx1) and the Y direction and be 1mm.
Though known antenna of partial reflection plane can promote the directive property of its high-frequency signal of launching through suitably adjusting the arrangement mode (promptly adjusting the spacing between each micro-strip reflection units 142) of themicro-strip reflection units 142 that is positioned at its array antenna block 14.But; The mechanism of known antenna of partial reflection plane reflection wave is only utilized the part of metal material; Do not think and utilize the purposes of nonmetallic insulation material, so known antenna of partial reflection plane need expend suitable material to make aforesaid each micro-strip reflection units and these micro-strip reflection units are filled on its reflecting plate as reflection wave.So, known part reflecting face just can't promote " aperture efficiency " of its high-frequency signal of exporting through utilizing nonmetallic materials further in the mode of suitable adjustment.
Therefore, industry is needed a kind of antenna of partial reflection plane that promotes its aperture efficiency and can reduce the required material that expends of each micro-strip reflection units of making reflecting plate badly.
Summary of the invention
The purpose of this invention is to provide a kind of antenna of partial reflection plane, can promote its aperture efficiency and also can reduce materials, reduce cost.
For achieving the above object, technical solution of the present invention is:
A kind of antenna of partial reflection plane comprises: one has substrate, a reflecting plate and most support units in order to partial reflection one high-frequency signal of a upper surface.Wherein, One signal output inlet is opened in the upper surface of this substrate and in order to receive and to export this high-frequency signal; The surface of this reflecting plate is provided with an array antenna block, and these support units then support this reflecting plate in the upper surface of this substrate and make this reflecting plate keep a specific range therewith between the substrate.In addition, an antenna array is laid in this array antenna block, and this antenna array comprises most micro-strip reflection units, and the area of this array antenna block is then between between 0.31 to 0.8 times of the surface area of this reflecting plate.
Or a kind of antenna of partial reflection plane, comprising: one has substrate, a reflecting plate and most support units in order to partial reflection one high-frequency signal of a upper surface.Wherein, One signal output inlet is opened in the upper surface of this substrate and in order to receive and to export this high-frequency signal; The surface of this reflecting plate is provided with an array antenna block, and these support units then support this reflecting plate in the upper surface of this substrate and make this reflecting plate keep a specific range therewith between the substrate.In addition; One first antenna array and one second antenna array are laid in respectively in this array antenna block; This second antenna array is surrounded this first antenna array, and this first antenna array and this second antenna array comprise most first micro-strip reflection units and most second micro-strip reflection units respectively.In addition, be less than the spacing between these second micro-strip reflection units between the spacing between these first micro-strip reflection units, the area of this array antenna block is then between between 0.31 to 0.8 times of the surface area of this reflecting plate.
Therefore; " surface area ratio of array antenna block area/reflecting plate " through suitable its reflecting plate of control so that its " array antenna block area " between the mode between " surface area of reflecting plate " 0.31 to 0.8 times, antenna of partial reflection plane of the present invention can promote its aperture efficiency and can reduce the required material that expends of each micro-strip reflection units of making reflecting plate.In addition; Through surface two kinds of modes with antenna array of different arrangement modes are set again in its reflecting plate; The ratio of " minor lobe " of the high-frequency signal that antenna of partial reflection plane of the present invention is launched can further reduce; Make the energy of the high-frequency signal that antenna of partial reflection plane of the present invention is launched to concentrate on its main lobe (main lobe) part more, make this high-frequency signal not only can transmit farther distance, also be not easy to be interfered.
The reflecting plate of antenna of partial reflection plane of the present invention can have the array antenna block of any size in its surface, the preferable surface area between reflecting plate of the area of this array antenna block 0.31 to 0.8 times between.The reflecting plate of antenna of partial reflection plane of the present invention can have the array antenna block of any external form in its surface, and the external form of this array antenna block is preferably square or rectangle.Most the micro-strip reflection units that the array antenna block that reflecting plate had of antenna of partial reflection plane of the present invention can comprise various external forms are in wherein, and the external form of these micro-strip reflection units is preferably square or rectangle.The substrate of antenna of partial reflection plane of the present invention can be made up of the printed circuit board (PCB) of any material, and it is preferably the microwave base plate of FR-4 material, the microwave base plate of Duroid material or the microwave base plate of Teflon material.The reflecting plate of antenna of partial reflection plane of the present invention can be made up of the printed circuit board (PCB) of any material, and it is preferably the microwave base plate of FR-4 material, the microwave base plate of Duroid material or the microwave base plate of Teflon material.Antenna of partial reflection plane of the present invention can use the reflecting plate of Any shape, and it is preferably square plate, rectangular slab or circular slab.Antenna of partial reflection plane of the present invention can use the support unit of any material, and it is preferably the material of plastics or any tool insulation function.The reflecting plate of antenna of partial reflection plane of the present invention can with substrate at a distance of any distance; It is preferably the high-frequency signal that antenna of partial reflection plane of the present invention receives or export wavelength 1/3rd to 2/3rds, the best be the high-frequency signal that antenna of partial reflection plane of the present invention received or exported wavelength 1/2nd.Antenna of partial reflection plane of the present invention can have the signal output inlet of any external form, and it is preferably square slotted eye or rectangle slotted eye.The signal output inlet of antenna of partial reflection plane of the present invention can be electrically connected on the holding wire of any kind of, and it is preferably a coaxial cable or a copper stranded conductor.
Description of drawings
Fig. 1 is the schematic perspective view of known antenna of partial reflection plane;
Fig. 2 A is the schematic perspective view of the antenna of partial reflection plane of first embodiment of the invention;
Fig. 2 B is the sketch map of reflecting plate of the antenna of partial reflection plane of first embodiment of the invention;
Fig. 2 C one shows the sketch map of arrangement mode of antenna array on the reflecting plate surface of the antenna of partial reflection plane be positioned at first embodiment of the invention;
Fig. 3 A is the waveform sketch map of high-frequency signal on H plane that a demonstration is launched through HFSS software emulation and the actual antenna of partial reflection plane that measures the first embodiment of the invention of gained;
Fig. 3 B is the waveform sketch map of high-frequency signal on the electric field plane that a demonstration is launched through HFSS software emulation and the actual antenna of partial reflection plane that measures the first embodiment of the invention of gained;
Fig. 3 C one shows the sketch map that concerns between aperture efficiency and the reflecting plate size of antenna of partial reflection plane of the first embodiment of the invention through HFSS software emulation gained;
Fig. 4 A is the schematic perspective view of the antenna of partial reflection plane of second embodiment of the invention;
Fig. 4 B is the sketch map of reflecting plate of the antenna of partial reflection plane of second embodiment of the invention;
Fig. 4 C one shows the sketch map of arrangement mode of first antenna array and second antenna array on the reflecting plate surface of the antenna of partial reflection plane lay respectively at second embodiment of the invention;
Fig. 5 A is the waveform sketch map of high-frequency signal on H plane that a demonstration is launched through HFSS software emulation and the actual antenna of partial reflection plane that measures the second embodiment of the invention of gained;
Fig. 5 B is the waveform sketch map of high-frequency signal on the electric field plane that a demonstration is launched through HFSS software emulation and the actual antenna of partial reflection plane that measures the second embodiment of the invention of gained;
Fig. 5 C one shows the sketch map that concerns between aperture efficiency and the reflecting plate size of antenna of partial reflection plane of second embodiment of the invention;
Fig. 6 A is the schematic perspective view of the antenna of partial reflection plane of third embodiment of the invention;
Fig. 6 B is the sketch map of reflecting plate of the antenna of partial reflection plane of third embodiment of the invention;
Fig. 6 C one shows the sketch map of arrangement mode of antenna array on the reflecting plate surface of the antenna of partial reflection plane be positioned at third embodiment of the invention;
Fig. 7 one shows the waveform sketch map of high-frequency signal on H plane that the antenna of partial reflection plane of high-frequency signal that the antenna of partial reflection plane of the second embodiment of the invention through HFSS software emulation gained is launched and third embodiment of the invention is launched.
The primary clustering symbol description
11,21,41,61 substrates
12,22,42,62 reflecting plates
14,24,44,64 array antenna blocks
111,211,411,611 upper surfaces
112,212,412,612 signal gateways
113,213,413,613 coaxial cables
131,132,133,134,231,232,233,234,431,432,433,434,631,632,633,634 support units
141,241,641 antenna array
142,242,642 micro-strip reflection units
441 first antenna array
442 second antenna array
443 first micro-strip reflection units
444 second micro-strip reflection units
Embodiment
Fig. 2 A is the schematic perspective view of the antenna of partial reflection plane of first embodiment of the invention, and wherein antenna of partial reflection plane comprises substrate 21, reflectingplate 22 and most support units 231,232,233,234.Wherein, Substrate 21 and reflectingplate 22 constitute by the microwave base plate of the FR-4 material of thickness 0.8mm; And reflectingplate 22 through an aforesaid majority support unit 231,232,233,234 and and keep a specific range between the substrate 21, promptly so-called " resonance apart from ".In addition, these support units the 231,232,233, the 234th are made up of the insulation material, and length of this resonance distance is relevant with the design frequency of the antenna of partial reflection plane of first embodiment of the invention.Generally speaking, this resonance distance be first embodiment of the invention the high-frequency signal that antenna of partial reflection plane received or exported wavelength 1/2nd.In the present embodiment, this resonance distance is about 1.7cm.
On the other hand, substrate 21 has a upper surface 211, and a signal gateway 212 is arranged at this upper surface 211, to receive the high-frequency signal of a frequency range between 9.25GHz and 9.55GHz.In the present embodiment, signal gateway 212 is a rectangle slotted eye, and this rectangle slotted eye is electrically connected on a coaxial cable 213 to export or to accept aforesaid high-frequency signal.In addition; When the antenna of partial reflection plane of first embodiment of the invention during in its emission state; This high-frequency signal is reflection to and fro between substrate 21 and reflectingplate 22; And the assistance of " partial reflection " effect that is caused via reflectingplate 22, the final penetrate throughreflective plate 22 of this high-frequency signal and being launched by the antenna of partial reflection plane of first embodiment of the invention.But aforesaid partial reflection effect is except the reflection of the metal section and part that comprises reflecting plate, and it more comprises the reflection of the non-metallic part (being the intermediate value part) of reflecting plate.
And shown in Fig. 2 A and Fig. 2 B; The surface of the reflectingplate 22 of the antenna of partial reflection plane of first embodiment of the invention is provided with anarray antenna block 24; Thisarray antenna block 24 is positioned at the middle body on the surface of reflectingplate 22, and the area of thisarray antenna block 24 is 0.31 times of surface area of reflecting plate 22.In addition, anantenna array 241 is laid in thisarray antenna block 24, and thisantenna array 241 comprises most micro-strip reflection units 242.In the present embodiment,antenna array 241 comprises 25micro-strip reflection units 242, and thesemicro-strip reflection units 242 form the array of a 5X5.
On the other hand, shown in Fig. 2 B and Fig. 2 C, in the present embodiment, reflectingplate 22 is a square plate, and its length and width are 11.4cm, and the external form ofarray antenna block 24 is a square, and its length and width are 6.4cm.As for theantenna array 241 that is laid in thearray antenna block 24, the external form of themicro-strip reflection units 242 of its component units is a square, and their length (L) and wide (W) are 12mm.In addition, inantenna array 241, be present between the directions X between eachmicro-strip reflection units 242 and the adjacentmicro-strip reflection units 242 apart from distance (Dy1) between (Dx1) and the Y direction and be 1mm (Dx1=Dy1=1mm).
Fig. 3 A is the waveform sketch map of high-frequency signal on H plane that a demonstration is launched through HFSS (High Frequency Structure Simulator) software emulation and the actual antenna of partial reflection plane that measures the first embodiment of the invention of gained; Wherein curve A is the waveform through HFSS software emulation gained, and curve B then is the waveform of actual measurement gained.From Fig. 3 A, can find out, quite meet through the result of HFSS software emulation gained and the result of actual measurement gained.
Fig. 3 B is the waveform sketch map of high-frequency signal on the electric field plane that a demonstration is launched through HFSS software emulation and the actual antenna of partial reflection plane that measures the first embodiment of the invention of gained; Wherein curve C is the waveform through HFSS software emulation gained, and curve D then is the waveform of actual measurement gained.Can find out that from Fig. 3 B the result through HFSS software emulation gained also quite meets with the result that reality measures gained.
Fig. 3 C one shows the sketch map that concerns between the size of aperture efficiency (aperture efficiency) and its reflecting plate of antenna of partial reflection plane of the first embodiment of the invention through HFSS software emulation gained, and so-called aperture efficiency is to go out through following formula calculating:
η=λ2G/ (4 π A) (formula one)
Wherein, A is the surface area that comprises the overall reflective plate of metal section and part and non-metallic part, and λ is free space wavelength (free space wavelength), and G is then for simulating the gain of gained.
Can find out that from Fig. 3 C along with the length of side of reflecting plate increases gradually, the aperture efficiency of the antenna of partial reflection plane of first embodiment of the invention also increases gradually, especially when the length of side of reflecting plate between between the 6.4cm to 12.4cm the time.In addition, in the antenna of partial reflection plane of first embodiment of the invention, the length of side of reflecting plate is 11.4cm, and the length of side of its array antenna block is 6.4cm, and its aperture efficiency then is about 50%.
Therefore; Compare mutually with known antenna of partial reflection plane (length of side of its reflecting plate only is slightly larger than the length of side of its array antenna block); At first, the aperture efficiency of known antenna of partial reflection plane also is difficult for reaching 50% efficient, moreover; Even if known antenna of partial reflection plane can be reached this level, known antenna of partial reflection plane is to form its reflecting plate (it is a part of reflecting surface) via the mode of metal material being filled up the surface of its reflecting plate.That is to say that when known antenna of partial reflection plane all was about 11.4cm in the length and width of its reflecting plate, its aperture efficiency all was lower than for 50% (relatively, the numerical value of antenna of partial reflection plane emulation gained of the present invention is about 40% under identical condition).But when the antenna of partial reflection plane of first embodiment of the invention was 9.4cm in the length and width of its reflecting plate, its aperture efficiency can reach about 50%.Be noted that antenna of partial reflection plane of the present invention only need utilize length and width all to be about the reflecting plate of 6.4cm, can reach the aperture efficiency suitable with known antenna of partial reflection plane.Therefore, antenna of partial reflection plane of the present invention also can reduce the required material that expends of each micro-strip reflection units of making reflecting plate outside promoting aperture efficiency.
Fig. 4 A is the schematic perspective view of the antenna of partial reflection plane of second embodiment of the invention, and wherein antenna of partial reflection plane comprisessubstrate 41, reflectingplate 42 and most support units 431,432,433,434.Wherein,Substrate 41 and reflectingplate 42 constitute by the microwave base plate of the FR-4 material of thickness 0.8mm; And reflectingplate 42 through an aforesaid majority support unit 431,432,433,434 and and keep a specific range between thesubstrate 41, distance resonates promptly so-called " resonance distance ".In addition, these support units the 431,432,433, the 434th are made up of the insulation material, and in the present embodiment, aforesaid resonance distance is about 1.7cm.
On the other hand,substrate 41 has aupper surface 411, and asignal gateway 412 is arranged at thisupper surface 411, to receive and to export the high-frequency signal of a frequency range between 9.25GHz and 9.55GHz.In the present embodiment,signal gateway 412 is a rectangle slotted eye, and this rectangle slotted eye is electrically connected on acoaxial cable 413 to export or to accept aforesaid high-frequency signal.In addition; When the antenna of partial reflection plane of second embodiment of the invention during in its emission state; This high-frequency signal is reflection to and fro betweensubstrate 41 and reflectingplate 42; And the assistance of " partial reflection " effect that is caused via reflectingplate 42, the final penetrate throughreflective plate 42 of this high-frequency signal and being launched by the antenna of partial reflection plane of second embodiment of the invention.
And shown in Fig. 4 A and Fig. 4 B; The surface of the reflectingplate 42 of the antenna of partial reflection plane of second embodiment of the invention is provided with anarray antenna block 44; Thisarray antenna block 44 is positioned at the middle body on the surface of reflectingplate 42, and the area of thisarray antenna block 44 is 0.72 times of surface area of reflecting plate 42.In addition, onefirst antenna array 441 and onesecond antenna array 442 are laid in respectively in thisarray antenna block 44, andsecond antenna array 442 withfirst antenna array 441 around wherein.Wherein, in the present embodiment,first antenna array 441 comprises 442 of 25 first micro-strip reflection units, 443, the second antenna array and comprises 48 secondmicro-strip reflection units 444, and these firstmicro-strip reflection units 443 form the array of a 5X5.
On the other hand, shown in Fig. 4 B and Fig. 4 C, in the present embodiment, reflectingplate 42 is a square plate, and its length and width are 14.5cm, and the external form ofarray antenna block 44 is a square, and its length and width are 12.4cm.First micro-strip reflection units, 443 external forms as forfirst antenna array 441 are square, and their length (L) and wide (W) are 12mm.In addition, the external form of secondmicro-strip reflection units 444 ofsecond antenna array 442 also is a square, and their length (L) and wide (W) also are 12mm.Be noted that, infirst antenna array 441, be present between the directions X between each firstmicro-strip reflection units 443 and adjacent firstmicro-strip reflection units 443 apart from distance (Dy1) between (Dx1) and the Y direction and be 1mm (Dx1=Dy1=1mm).Insecond antenna array 442, be present between the directions X between each secondmicro-strip reflection units 444 and adjacent secondmicro-strip reflection units 444 apart from distance (Dy2) between (Dx2) and the Y direction and be 4mm (Dx2=Dy2=4mm).
Fig. 5 A is the waveform sketch map of high-frequency signal on H plane that a demonstration is launched through HFSS software emulation and the actual antenna of partial reflection plane that measures the second embodiment of the invention of gained; Wherein curve E is the waveform through HFSS software emulation gained, and curve F then is the waveform of actual measurement gained.From Fig. 5 A, can find out, quite meet through the result of HFSS software emulation gained and the result of actual measurement gained.
Fig. 5 B is the waveform sketch map of high-frequency signal on the electric field plane that a demonstration is launched through HFSS software emulation and the actual antenna of partial reflection plane that measures the second embodiment of the invention of gained; Wherein curve G is the waveform through HFSS software emulation gained, and curve H then is the waveform of actual measurement gained.Can find out that from Fig. 5 B the result through HFSS software emulation gained also quite meets with the result that reality measures gained.
Fig. 5 C one shows the sketch map that concerns between the size of aperture efficiency and its reflecting plate of antenna of partial reflection plane of the second embodiment of the invention through HFSS software emulation gained; And from Fig. 5 C, can find out; Along with the length of side of reflecting plate increases gradually; The aperture efficiency of the antenna of partial reflection plane of second embodiment of the invention also increases gradually, especially when the length of side of reflecting plate between between the 12.5cm to 15.5cm the time.In addition, in the antenna of partial reflection plane of second embodiment of the invention, the length of side of reflecting plate is 14.5cm, and the length of side of its array antenna block is 12.4cm, and its aperture efficiency then is about 65%.
Therefore; Compare mutually with known antenna of partial reflection plane (length of side of its reflecting plate only is slightly larger than the length of side of its array antenna block); The aperture efficiency of known antenna of partial reflection plane is about 50% at most, and the antenna of partial reflection plane of second embodiment of the invention can have higher aperture efficiency (being about 65%).That is to say; The antenna of partial reflection plane of second embodiment of the invention only needs the reflecting plate that has than small size; Just can have the aperture efficiency identical, to reduce the required material that expends of each micro-strip reflection units of making reflecting plate with known antenna of partial reflection plane.
Fig. 6 A is the schematic perspective view of the antenna of partial reflection plane of third embodiment of the invention, and wherein antenna of partial reflection plane comprisessubstrate 61, reflectingplate 62 and most support units 631,632,633,634.Wherein,Substrate 61 and reflectingplate 62 constitute by the microwave base plate of the FR-4 material of thickness 0.8mm; And reflectingplate 62 through an aforesaid majority support unit 631,632,633,634 and and keep a specific range between thesubstrate 61, promptly so-called " resonance apart from ".In addition, these support units the 631,632,633, the 634th are made up of the insulation material, and in the present embodiment, aforesaid resonance distance is about 1.7cm.
On the other hand,substrate 61 has aupper surface 611, and asignal gateway 612 is arranged at thisupper surface 611, to receive and to export the high-frequency signal of a frequency range between 9.25GHz and 9.55GHz.In the present embodiment,signal gateway 612 is a rectangle slotted eye, and this rectangle slotted eye is electrically connected on acoaxial cable 613 to export or to accept aforesaid high-frequency signal.In addition; When the antenna of partial reflection plane of third embodiment of the invention during in its emission state; This high-frequency signal is reflection to and fro betweensubstrate 61 and reflectingplate 62; And the assistance of " partial reflection " effect that is caused via reflectingplate 62, the final penetrate throughreflective plate 62 of this high-frequency signal and being launched by the antenna of partial reflection plane of third embodiment of the invention.
And shown in Fig. 6 A and Fig. 6 B; The surface of the reflectingplate 62 of the antenna of partial reflection plane of third embodiment of the invention is provided with anarray antenna block 64; Thisarray antenna block 64 is positioned at the middle body on the surface of reflectingplate 62, and the area of thisarray antenna block 64 is 0.74 times of surface area of reflecting plate 62.In addition, anantenna array 641 is laid in thisarray antenna block 64, and thisantenna array 641 comprises most micro-strip reflection units 642.In the present embodiment,antenna array 641 comprises 81micro-strip reflection units 642, and thesemicro-strip reflection units 642 form the array of a 9X9.
On the other hand, shown in Fig. 6 B and Fig. 6 C, in the present embodiment, reflectingplate 62 is a square plate, and its length and width are 13.5cm, and the external form ofarray antenna block 64 is a square, and its length and width are 11.7cm.As for theantenna array 641 that is laid in thearray antenna block 64, the external form of themicro-strip reflection units 642 of its component units is a square, and their length (L) and wide (W) are 12mm.In addition, inantenna array 641, be present between the directions X between eachmicro-strip reflection units 642 and the adjacentmicro-strip reflection units 642 apart from distance (Dy1) between (Dx1) and the Y direction and be 1mm (Dx1=Dy1=1mm).
Fig. 7 one shows the waveform sketch map of high-frequency signal on H plane that the antenna of partial reflection plane of high-frequency signal that the antenna of partial reflection plane of the second embodiment of the invention through HFSS software emulation gained is launched and third embodiment of the invention is launched; Wherein curve I is the waveform of the high-frequency signal launched of the antenna of partial reflection plane of second embodiment of the invention, the waveform that curve J then launches for the antenna of partial reflection plane of third embodiment of the invention.
As can be seen from Figure 7; Because the antenna of partial reflection plane of second embodiment is provided with two kinds of antenna array with different arrangement modes in the array antenna block of its reflecting plate; I.e. first antenna array and second antenna array; Though so the antenna of partial reflection plane of the antenna of partial reflection plane of second embodiment and the 3rd embodiment has close " surface area ratio of array antenna block area/reflecting plate " (being respectively 0.72 and 0.74), " minor lobe " part of the waveform of high-frequency signal on H plane that the high-frequency signal that the antenna of partial reflection plane of second embodiment is launched is launched than the antenna of partial reflection plane of the 3rd embodiment in " minor lobe (the sidelobe level) " of the waveform on H plane part is for low.That is to say; The high-frequency signal of launching compared to the antenna of partial reflection plane of the 3rd embodiment; The ratio that " minor lobe " of the high-frequency signal that the antenna of partial reflection plane of second embodiment is launched part accounts for its overall waveform is lower, makes the energy of the high-frequency signal that the antenna of partial reflection plane of second embodiment is launched concentrate on its main lobe (main lobe) part more.So, the high-frequency signal that the antenna of partial reflection plane of second embodiment of the invention is launched not only can transmit farther distance, and it also is not vulnerable to extraneous interference.
In sum; " surface area ratio of array antenna block area/reflecting plate " through suitable its reflecting plate of control so that its " array antenna block area " between the mode between " surface area of reflecting plate " 0.31 to 0.8 times, antenna of partial reflection plane of the present invention can promote its aperture efficiency and can reduce the required material that expends of each micro-strip reflection units of making reflecting plate.In addition; Through surface two kinds of modes with antenna array of different arrangement modes are set again in its reflecting plate; The ratio of " minor lobe " of the high-frequency signal that antenna of partial reflection plane of the present invention is launched can further reduce; Make the energy of the high-frequency signal that antenna of partial reflection plane of the present invention is launched to concentrate on its main lobe (main lobe) part more, make this high-frequency signal not only can transmit farther distance, also be not easy to be interfered.
The foregoing description only is to explain for ease and give an example, and the interest field that the present invention advocated is from should be with said being as the criterion of scope of claim protection, but not only limits to the foregoing description.
Claims (17)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101887135ACN101436714B (en) | 2007-11-15 | 2007-11-15 | Partially reflective antenna |
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| CN2007101887135ACN101436714B (en) | 2007-11-15 | 2007-11-15 | Partially reflective antenna |
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| CN101436714A CN101436714A (en) | 2009-05-20 |
| CN101436714Btrue CN101436714B (en) | 2012-07-11 |
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| EP3236278B1 (en)* | 2016-04-20 | 2020-12-09 | Rohde & Schwarz GmbH & Co. KG | Directional antenna module |
| KR102346283B1 (en) | 2018-02-02 | 2022-01-04 | 삼성전자 주식회사 | An antenna module including reflector and an electric device including the antenna module |
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| CN1960058A (en)* | 2005-11-04 | 2007-05-09 | 大同股份有限公司 | Partially reflective antenna |
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- 2007-11-15CNCN2007101887135Apatent/CN101436714B/ennot_activeExpired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4684952A (en)* | 1982-09-24 | 1987-08-04 | Ball Corporation | Microstrip reflectarray for satellite communication and radar cross-section enhancement or reduction |
| CN1960058A (en)* | 2005-11-04 | 2007-05-09 | 大同股份有限公司 | Partially reflective antenna |
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| The Nan Chang and Yu Chen Wei.Proximity-Coupled Microstrip Reflectarray.《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》.2004,第52卷(第2期),第631-635页.* |
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| CN101436714A (en) | 2009-05-20 |
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