技术领域technical field
本发明涉及一种天线结构，尤其涉及一种印刷式偶极天线结构。The invention relates to an antenna structure, in particular to a printed dipole antenna structure.
背景技术Background technique
在科技发展日新月异的现今时代中，多种尺寸轻巧的天线已开发出来，以应用在各种尺寸日益轻巧的手持式电子装置中(例如移动电话或笔记本电脑)或无线传输装置(例如AP、无线网卡Card Bus)中。举例来说，结构轻巧、传输效能良好且可轻易地被设置在手持式电子装置内壁的平面倒F形天线(Planar Inverse-F Antenna，PIFA)或单极天线(Monopole Antenna)或偶极天线(Dipole Antenna)已存在，并被广泛地应用在多种手持式电子装置的无线传输或笔记本电脑或无线通讯装置中。In today's era of rapid technological development, various sizes of lightweight antennas have been developed to be used in various sizes of increasingly lightweight handheld electronic devices (such as mobile phones or notebook computers) or wireless transmission devices (such as APs, wireless network card Card Bus). For example, a planar inverse-F antenna (Planar Inverse-F Antenna, PIFA) or a monopole antenna (Monopole Antenna) or a dipole antenna ( Dipole Antenna) already exists and is widely used in wireless transmission of various handheld electronic devices or notebook computers or wireless communication devices.
发明内容Contents of the invention
本发明是一种使用于无线传输装置的印刷式偶极天线的设计。The invention is a design of a printed dipole antenna used in a wireless transmission device.
本发明的印刷式偶极天线结构适用于无线传输装置中的外建式天线。此外，本发明的天线结构是非典型式设计，即不是从天线中心馈入讯号，此设计是因在从天线中心馈入讯号的已知Lite天线案例中，所需电缆(Cable)线长较长，且利用接地端耦合方式谐振，从而导致效率较低、双段双拨度、焊接组装不易、双面制作及制作成本高等缺陷。The printed dipole antenna structure of the present invention is suitable for external antennas in wireless transmission devices. In addition, the antenna structure of the present invention is an atypical design, that is, the signal is not fed from the center of the antenna. This design is because in the case of the known Lite antenna that feeds the signal from the center of the antenna, the required cable length is relatively long , and use the ground coupling method to resonate, resulting in defects such as low efficiency, double-segment double-dial, difficult welding and assembly, double-sided production and high production cost.
所以，申请人鉴于已知技术的缺点，发明出本发明“天线结构”，用于改善上述缺陷。Therefore, in view of the shortcomings of the known technology, the applicant invented the "antenna structure" of the present invention to improve the above-mentioned shortcomings.
本发明一方面提供一种天线结构，包括：一纵向参考轴、相关于该纵向参考轴的一第一侧和相对于该第一侧的一第二侧，其中该纵向参考轴具有一纵向参考方向；一讯号馈入端；以及一辐射部，包括：一第一导体路径，从该讯号馈入端在该第一侧中沿该纵向参考方向延伸到一第一转角位置；一第二导体路径，从该第一转角位置通过该纵向参考轴延伸到在该第二侧中的一第二转角位置；一第三导体路径，在该第二侧中从该第二转角位置沿该纵向参考方向延伸到一启始回转位置；一第四导体路径，从该启始回转位置通过该纵向参考轴延伸到在该第一侧中的一终止回转位置；以及一第五导体路径，从该终止回转位置在该第一侧中沿与该纵向参考方向相反的一第一方向延伸；一馈入接地端，经一第一空隙而相邻于该讯号馈入端；以及一接地部，包含一第一接地导体，该第一接地导体从该馈入接地端在该第二侧中沿该纵向参考方向延伸。One aspect of the present invention provides an antenna structure comprising: a longitudinal reference axis, a first side relative to the longitudinal reference axis and a second side relative to the first side, wherein the longitudinal reference axis has a longitudinal reference direction; a signal feed-in end; and a radiation portion, comprising: a first conductor path extending from the signal feed-in end to a first corner position along the longitudinal reference direction in the first side; a second conductor a path extending from the first corner position through the longitudinal reference axis to a second corner position in the second side; a third conductor path extending in the second side from the second corner position along the longitudinal reference direction extends to a starting rotation position; a fourth conductor path extends from the starting rotation position through the longitudinal reference axis to a termination rotation position in the first side; and a fifth conductor path extends from the termination The swivel position extends in the first side along a first direction opposite to the longitudinal reference direction; a feed-in ground terminal is adjacent to the signal feed-in terminal through a first gap; and a ground portion includes a A first ground conductor extending from the feed-in ground terminal along the longitudinal reference direction in the second side.
本发明另一方面提供一种天线结构，包括：一纵向参考轴，具有一纵向参考方向；一讯号馈入端；以及一辐射部，包括：一第一导体路径，从该讯号馈入端沿该纵向参考方向延伸到一第一转角位置；一第二导体路径，从该第一转角位置通过该纵向参考轴延伸到一第二转角位置；一第三导体路径，从该第二转角位置沿该纵向参考方向延伸到一启始回转位置；一第四导体路径，从该启始回转位置通过该纵向参考轴延伸到一终止回转位置；以及一第五导体路径，从该终止回转位置沿与该纵向参考方向相反的一第一方向延伸；以及一馈入接地端，经一第一空隙而相邻于该讯号馈入端。Another aspect of the present invention provides an antenna structure, including: a longitudinal reference axis, with a longitudinal reference direction; a signal feed-in end; and a radiation part, including: a first conductor path, along the The longitudinal reference direction extends to a first corner position; a second conductor path extends from the first corner position through the longitudinal reference axis to a second corner position; a third conductor path extends from the second corner position along The longitudinal reference direction extends to a starting rotational position; a fourth conductor path extends from the initial rotational position through the longitudinal reference axis to a final rotational position; and a fifth conductor path extends from the final rotational position along the The longitudinal reference direction extends in a first direction opposite to the reference direction; and a feed-in ground terminal is adjacent to the signal feed-in terminal through a first gap.
本发明又一方面提供一种天线结构，包括：一天线本体，具有一第一端、一中心部位、一第二端、一横向及一纵向；一讯号馈入端，设于接近该第一端处；以及一辐射部，包括：一中心部，沿该横向设于接近该中心部位，并具一第一端部及一第二端部；一第一延伸部，延伸于该第一端部及该讯号馈入端之间；一第二延伸部，以该纵向延伸于该第二端部及该第二端之间；一第三延伸部，以该横向在该第二端延伸，并具与该第二延伸部连接的一第一延伸端及相对于该第一延伸端的一第二延伸端；以及一第四延伸部，以该纵向自该第二延伸端往该中心部延伸。Still another aspect of the present invention provides an antenna structure, including: an antenna body having a first end, a central portion, a second end, a horizontal direction and a vertical direction; a signal feed-in end located close to the first and a radiating portion, including: a central portion, disposed near the central portion along the transverse direction, and having a first end portion and a second end portion; a first extension portion, extending from the first end part and the signal feed-in end; a second extension part extends between the second end part and the second end in the longitudinal direction; a third extension part extends in the second end in the transverse direction, and having a first extension end connected to the second extension portion and a second extension end opposite to the first extension end; and a fourth extension portion extending from the second extension end to the central portion in the longitudinal direction .
本发明再一方面提供一种天线结构，包括：一纵向参考轴，具有一纵向参考方向；一讯号馈入端；以及一辐射部，包括：一第一导体路径，从该讯号馈入端沿该纵向参考方向延伸到一第一转角位置；一第二导体路径，从该第一转角位置通过该纵向参考轴延伸到一第二转角位置；一第三导体路径，从该第二转角位置沿该纵向参考方向延伸到一启始回转位置；一第四导体路径，从该启始回转位置通过该纵向参考轴延伸到一终止回转位置；以及一第五导体路径，从该终止回转位置沿与该纵向参考方向相反的一第一方向延伸。Still another aspect of the present invention provides an antenna structure, including: a longitudinal reference axis, with a longitudinal reference direction; a signal feed-in end; and a radiation part, including: a first conductor path, along the The longitudinal reference direction extends to a first corner position; a second conductor path extends from the first corner position through the longitudinal reference axis to a second corner position; a third conductor path extends from the second corner position along The longitudinal reference direction extends to a starting rotational position; a fourth conductor path extends from the initial rotational position through the longitudinal reference axis to a final rotational position; and a fifth conductor path extends from the final rotational position along the The longitudinal reference direction extends in a first direction opposite to the reference direction.
附图说明Description of drawings
本发明藉由下列附图的详细说明，以使得更深入的了解：The present invention is described in detail with the following drawings to enable a deeper understanding:
图1(a)是本发明第一实施例的天线结构的正视图；Fig. 1 (a) is the front view of the antenna structure of the first embodiment of the present invention;
图1(b)是本发明第一实施例的天线结构的侧视图；Fig. 1 (b) is the side view of the antenna structure of the first embodiment of the present invention;
图2(a)是本发明第二实施例的天线结构的详细正视图；Fig. 2 (a) is the detailed front view of the antenna structure of the second embodiment of the present invention;
图2(b)是本发明第二实施例的天线结构的详细正视图；Fig. 2 (b) is the detailed front view of the antenna structure of the second embodiment of the present invention;
图2(c)是本发明第二实施例的天线结构的详细正视图；Fig. 2 (c) is the detailed front view of the antenna structure of the second embodiment of the present invention;
图3是本发明的天线结构的返回损失的测试结果图；Fig. 3 is the test result diagram of the return loss of the antenna structure of the present invention;
图4是本发明的天线结构的频率-效率结果图。Fig. 4 is a graph of frequency-efficiency results of the antenna structure of the present invention.
具体实施方式detailed description
本发明将由下列实施例说明而得到充分了解，使熟悉本领域的技术人员可以根据下列内容进行具体实施，然而本发明的实施并非限制于下列实施例所描述的内容。The present invention will be fully understood by the description of the following examples, so that those skilled in the art can implement according to the following content, but the implementation of the present invention is not limited to the content described in the following examples.
本发明的目的是提供一种天线结构，该天线结构不需要再有额外的接地区域，即可单独操作在外接式系统上，并适用于无线传输装置的电子装置，并可依产品的需求轻易的作调整与修正以达到适合的应用。本发明所举的实施例均可应用于操作频段在LTE-Band 13(746～787MHz)、LTE-Band 17(704～746MHz)、LTE-Band 20(791～862MHz)、LTE-Band 5(824～894MHz)、3G-Band(860～960MHz)的系统频带需求，也就是说，凡是698～960MHz的系统频带皆可应用，或另可稍作频段调整而应用在除了上述频段以外的其它操作宽频段的无线通讯装置的天线。再者，本发明的天线结构在698～960MHz的系统频带下其天线效率约可达59～60％，此对于低频天线而言，是相当优异的天线效率表现。The object of the present invention is to provide an antenna structure, which can be operated independently on an external system without an additional grounding area, and is suitable for electronic devices of wireless transmission devices, and can be easily customized according to product requirements. Make adjustments and corrections to achieve a suitable application. The embodiments of the present invention can be applied to the operating frequency bands of LTE-Band 13 (746-787MHz), LTE-Band 17 (704-746MHz), LTE-Band 20 (791-862MHz), LTE-Band 5 (824MHz) ~894MHz), 3G-Band (860~960MHz) system frequency band requirements, that is to say, any system frequency band of 698~960MHz can be applied, or the frequency band can be adjusted slightly to apply to other operating broadband except the above frequency bands segment of the antenna of the wireless communication device. Furthermore, the antenna structure of the present invention has an antenna efficiency of about 59-60% in the system frequency band of 698-960 MHz, which is a very good antenna efficiency performance for a low-frequency antenna.
本发明为一种使用于一基板(例如印刷电路板(Printed Circuit Board,PCB))上的一印刷式偶极天线结构，其中该天线结构是通过印制一微带线于该基板中的一面，以及将讯号馈入端与馈入接地端连接至该微带线而形成，而该基板的另一面在对应于该微带线的位置不印制接地金属面。该基板可为多层板或完全无金属的单层板。The present invention is a printed dipole antenna structure used on a substrate (such as a printed circuit board (Printed Circuit Board, PCB)), wherein the antenna structure is obtained by printing a microstrip line on one side of the substrate , and the signal feed-in end and the feed-in ground end are connected to the microstrip line, and the other side of the substrate is not printed with a ground metal plane at a position corresponding to the microstrip line. The substrate can be a multi-layer board or a single-layer board that is completely metal-free.
本发明的天线结构包含一天线本体、一辐射部以及一讯号馈入端，其中该辐射部的一长度约略等于所欲设计的频段中使用频率共振波长的1/4长度，该辐射部可作为天线辐射频带讯号，而该长度可用于调整天线结构的一操作频率。The antenna structure of the present invention includes an antenna body, a radiating part and a signal feed-in end, wherein a length of the radiating part is approximately equal to a length of 1/4 of the frequency resonance wavelength used in the frequency band to be designed, and the radiating part can be used as The antenna radiates frequency band signals, and the length can be used to adjust an operating frequency of the antenna structure.
该天线本体具有一第一端、一中心部位、一第二端、一横向及一纵向。该讯号馈入端是设于接近该第一端处。该辐射部包含一中心部，沿该横向设于接近该中心部位，并具一第一端部及一第二端部；一第一延伸部，延伸于该第一端部及该讯号馈入端之间；一第二延伸部，以该纵向延伸于该第二端部及该第二端之间；一第三延伸部，以该横向在该第二端延伸，并具与该第二延伸部连接的一第一延伸端及相对于该第一延伸端的一第二延伸端；以及一第四延伸部，以该纵向自该第二延伸端往该中心部延伸。The antenna body has a first end, a central part, a second end, a transverse direction and a longitudinal direction. The signal feed-in end is located close to the first end. The radiation part includes a central part, which is arranged near the central part along the transverse direction, and has a first end part and a second end part; a first extension part, which extends from the first end part and the signal feed-in between the ends; a second extension extending in the longitudinal direction between the second end and the second end; a third extension extending in the transverse direction at the second end and having the second A first extension end connected with the extension part and a second extension end opposite to the first extension end; and a fourth extension part extending from the second extension end to the central part in the longitudinal direction.
此外，本发明的天线结构还包含一辐射补块、一补块开槽、一接地部以及一馈入接地端，其中该辐射补块是自该中心部及该第二延伸部延伸，其中该补块、该中心部与该第一延伸部之间具有一补块开槽，该第二延伸部、该第三延伸部、第四延伸部与该辐射补块之间具有一空隙，该第一延伸部与该中心部之间具有一第一直角，该第二延伸部与该辐射补块之间具有一第二直角，而该第三延伸部呈一弧状。该补块开槽用于调整该天线结构的阻抗匹配，而该讯号馈入端配置于该辐射部的一端以馈入讯号，且该辐射部与该接地部之间电性绝缘。In addition, the antenna structure of the present invention further includes a radiation patch, a patch slot, a ground portion, and a feed-in ground terminal, wherein the radiation patch extends from the central portion and the second extension portion, wherein the There is a patch slot between the patch, the central part and the first extension part, there is a gap between the second extension part, the third extension part, the fourth extension part and the radiation patch, and the first extension part There is a first right angle between an extension part and the central part, a second right angle between the second extension part and the radiation patch, and an arc shape. The slot of the patch is used to adjust the impedance matching of the antenna structure, and the signal feeding end is arranged at one end of the radiating part to feed in a signal, and the radiating part is electrically insulated from the grounding part.
根据本发明的一实施例，该接地部的长度约为该辐射部的1/2长。According to an embodiment of the present invention, the length of the ground portion is about 1/2 of the length of the radiation portion.
请参阅图1(a)和图1(b)，其分别为本发明第一实施例的天线结构100的正视图以及侧视图。如图1(a)及图1(b)所示，天线结构100包括一辐射部101、一接地部102、一讯号馈入端103、一馈入接地端104、一辐射补块105、一补块开槽106以及一基板1-7。该天线结构100还包括一纵向参考轴A(如图2(a)所示)、相关于该纵向参考轴A的一第一侧和相对于该第一侧的一第二侧，其中该纵向参考轴A具有一纵向参考方向。Please refer to FIG. 1( a ) and FIG. 1( b ), which are respectively a front view and a side view of an antenna structure 100 according to a first embodiment of the present invention. As shown in Figure 1(a) and Figure 1(b), the antenna structure 100 includes a radiation part 101, a ground part 102, a signal feed-in terminal 103, a feed-in ground terminal 104, a radiation patch 105, a Patch slot 106 and a substrate 1-7. The antenna structure 100 also includes a longitudinal reference axis A (as shown in FIG. 2( a ), a first side relative to the longitudinal reference axis A and a second side relative to the first side, wherein the longitudinal The reference axis A has a longitudinal reference direction.
该辐射部101包括复数延伸部，且该复数延伸部各自具有一第一导体路径a、一第二导体路径b、一第三导体路径c、一第四导体路径d以及一第五导体路径e，其中该第一导体路径a是从该讯号馈入端103在该第一侧中沿该纵向参考方向延伸到一第一转角位置，该第二导体路径b是从该第一转角位置通过该纵向参考轴A延伸到在该第二侧中的一第二转角位置，该第三导体路径c在该第二转角位置沿该纵向参考方向延伸到一启始回转位置，该第四导体路径d是从该启始回转位置通过该纵向参考轴A延伸到在该第一侧中的一终止回转位置，而该第五导体路径e从该终止回转位置在该第一侧中沿与该纵向参考方向相反的一第一方向延伸。The radiating part 101 includes a plurality of extension parts, and each of the plurality of extension parts has a first conductor path a, a second conductor path b, a third conductor path c, a fourth conductor path d, and a fifth conductor path e , wherein the first conductor path a extends from the signal feed-in end 103 in the first side along the longitudinal reference direction to a first corner position, and the second conductor path b passes through the first corner position from the first corner position The longitudinal reference axis A extends to a second angular position in the second side, the third conductor path c extends in the second angular position along the longitudinal reference direction to an initial rotational position, the fourth conductor path d is extending from the initial rotational position through the longitudinal reference axis A to a final rotational position in the first side, and the fifth conductor path e extends from the final rotational position in the first side along the longitudinal reference The opposite direction extends in a first direction.
该第二导体路径b垂直于该第一导体路径a。该第三导体路径c垂直于该第二导体路径b，并平行于该第一导体路径a。该第五导体路径e平行于该第三导体路径c。The second conductor path b is perpendicular to the first conductor path a. The third conductor path c is perpendicular to the second conductor path b and parallel to the first conductor path a. The fifth conductor path e is parallel to the third conductor path c.
该辐射部101还包括一辐射补块105以及一补块开槽106，其中该辐射补块105从该第三导体路径c通过该纵向参考轴A延伸到该第一侧中，而该补块开槽106设置于该辐射补块105和该第二导体路径b之间，且该第五导体路径e延伸到在该辐射补块105和该终止回转位置之间的一第三转角位置。The radiation portion 101 further includes a radiation patch 105 and a patch slot 106, wherein the radiation patch 105 extends from the third conductor path c through the longitudinal reference axis A into the first side, and the patch The slot 106 is disposed between the radiation patch 105 and the second conductor path b, and the fifth conductor path e extends to a third corner position between the radiation patch 105 and the end rotation position.
该馈入接地端104经由一第一空隙而相邻于该讯号馈入段103。该接地部102还包含一第一接地导体G，该第一接地导体G从该馈入接地端104在该第二侧中沿该纵向参考方向延伸。The feeding ground terminal 104 is adjacent to the signal feeding section 103 through a first gap. The ground portion 102 also includes a first ground conductor G extending from the feed-in ground terminal 104 along the longitudinal reference direction in the second side.
本发明的天线结构100除了包含设置于该第一导体路径a和该第一接地导体G之间的该第一空隙外，还包含设置于该第一导体路径和该第一接地导体G之间并与该第一空隙相通的一第二空隙，设置于该第二导体路径b和该第一接地导体G之间并与该第二空隙相通的一第三空隙，以及设置于该辐射补块105和该第三导体路径c、该第四导体路径d、该第五导体路径e之间的一第四空隙。In addition to the first gap disposed between the first conductor path a and the first ground conductor G, the antenna structure 100 of the present invention also includes a space between the first conductor path a and the first ground conductor G. A second gap communicated with the first gap, a third gap disposed between the second conductor path b and the first ground conductor G and communicated with the second gap, and a third gap disposed in the radiation patch 105 and a fourth gap between the third conductor path c, the fourth conductor path d, and the fifth conductor path e.
该辐射部101还可包含一延伸部(未显示)，该延伸部具有一第六导体路径(未显示)，其中该第六导体路径从该第三转角位置朝该第三导体路径c延伸，且该第六导体路径垂直于该第五导体路径e，并平行与该第二导体路径b。The radiating portion 101 may further include an extension portion (not shown), the extension portion has a sixth conductor path (not shown), wherein the sixth conductor path extends from the third corner position toward the third conductor path c, And the sixth conductor path is perpendicular to the fifth conductor path e and parallel to the second conductor path b.
该接地部102还可包含一第二接地导体(未显示)，该第二接地导体从该馈入接地端104沿该第一方向延伸，并包含位于该第一侧中的一第一部分及位于该第二侧中的一第二部分。The ground portion 102 may also include a second ground conductor (not shown), extending from the feed-in ground terminal 104 along the first direction, and including a first portion located in the first side and a A second portion in the second side.
该辐射部101的一长度用以决定该天线结构100的操作频率。该补块开槽106用以调整该天线结构100的阻抗匹配，使该天线结构100的电压驻波比(VAWR)可以达到业界的规范及要求，且其尺寸取决于该长度。该第二空隙的一第一尺寸决定于该辐射部101的一第二尺寸。该接地部102的第三尺寸取决于该第二尺寸。A length of the radiation part 101 is used to determine the operating frequency of the antenna structure 100 . The patch slot 106 is used to adjust the impedance matching of the antenna structure 100 so that the voltage standing wave ratio (VAWR) of the antenna structure 100 can meet industry standards and requirements, and its size depends on the length. A first size of the second gap is determined by a second size of the radiation portion 101 . The third size of the ground portion 102 depends on the second size.
请参阅图2(a)、图2(b)和图2(c)，其为本发明第二实施例的天线结构200的详细正视图。如图2(a)、图2(b)及图2(c)所示，本发明的天线结构200包括一辐射部201、一接地部202、一讯号馈入端203、一馈入接地端204、一辐射补块205、一补块开槽206以及一基板207。该天线结构200还包括一纵向参考轴A、相关于该纵向参考轴A的一第一侧和相对于该第一侧的一第二侧。该纵向参考轴A具有一纵向参考方向，而该馈入接地端204经由一第一空隙而相邻于该讯号馈入端203。Please refer to FIG. 2(a), FIG. 2(b) and FIG. 2(c), which are detailed front views of the antenna structure 200 according to the second embodiment of the present invention. As shown in Fig. 2(a), Fig. 2(b) and Fig. 2(c), the antenna structure 200 of the present invention includes a radiation part 201, a ground part 202, a signal feed-in end 203, a feed-in ground end 204 , a radiation patch 205 , a patch slot 206 and a substrate 207 . The antenna structure 200 also includes a longitudinal reference axis A, a first side relative to the longitudinal reference axis A, and a second side relative to the first side. The longitudinal reference axis A has a longitudinal reference direction, and the feed-in ground terminal 204 is adjacent to the signal feed-in terminal 203 through a first gap.
该辐射部201包括复数延伸部，且该复数延伸部各自具有一第一导体路径a、一第二导体路径b、一第三导体路径c、一第四导体路径d以及一第五导体路径e，其中该第一导体路径a从该讯号馈入端203沿该纵向参考方向延伸到一第一转角位置①，该第二导体路径b从该第一转角位置①通过该纵向参考轴A延伸到一第二转角位置②，该第三导体路径c从该第二转角位置②沿该纵向参考方向延伸到一启始回转位置③，该第四导体路径d从该启始回转位置③通过该纵向参考轴A延伸到一终止回转位置④，而该第五导体路径e从该终止回转位置④沿与该纵向参考方向相反的一第一方向延伸。The radiating part 201 includes a plurality of extension parts, and each of the plurality of extension parts has a first conductor path a, a second conductor path b, a third conductor path c, a fourth conductor path d, and a fifth conductor path e , wherein the first conductor path a extends from the signal feed-in end 203 along the longitudinal reference direction to a first corner position ①, and the second conductor path b extends from the first corner position ① through the longitudinal reference axis A to A second corner position ②, the third conductor path c extends from the second corner position ② along the longitudinal reference direction to a starting turning position ③, the fourth conductor path d passes through the longitudinal direction from the starting turning position ③ The reference axis A extends to an end swivel position ④, and the fifth conductor path e extends from the end swivel position ④ in a first direction opposite to the longitudinal reference direction.
该辐射部201还包括一辐射补块205，其从第三导体路径c通过该纵向参考轴A延伸到该第一侧中，其中该第五导体路径e延伸到在该辐射补块205和该终止回转位置④之间的一第三转角位置⑤。The radiating portion 201 also includes a radiating patch 205 extending from the third conductor path c through the longitudinal reference axis A into the first side, wherein the fifth conductor path e extends to between the radiating patch 205 and the A third angular position ⑤ between the end swivel positions ④.
该辐射部201还包括一延伸部2011，其具有一第六导体路径f，且该第六导体路径f从该第三转角位置⑤朝该第三导体路径c延伸，垂直于该第五导体路径e，并平行于该第二导体路径b。该延伸部2011的设计是在不增加整体尺寸的情况下，来增加该辐射部201的长度以得到所欲使用的操作频率。The radiating part 201 also includes an extension part 2011, which has a sixth conductor path f, and the sixth conductor path f extends from the third corner position ⑤ toward the third conductor path c, perpendicular to the fifth conductor path e, and parallel to the second conductor path b. The extension part 2011 is designed to increase the length of the radiation part 201 to obtain the desired operating frequency without increasing the overall size.
该辐射部201、该延伸部2011、该接地部202、该讯号馈入端203、该馈入接地端204及该辐射补块205皆为一共平面。The radiation part 201 , the extension part 2011 , the ground part 202 , the signal feed-in terminal 203 , the feed-in ground terminal 204 and the radiation patch 205 are all coplanar.
该接地部202包含一第一接地导体以及一第二接地导体c’，其中该第一接地导体a’、b’从该馈入接地端204在该第二侧中沿该纵向参考方向延伸，而该第二接地导体c’从该馈入接地端204沿该第一方向延伸，并包含位于第一侧中的一第一部分及位于该第二侧中的一第二部分。The ground portion 202 includes a first ground conductor and a second ground conductor c', wherein the first ground conductors a', b' extend from the feed-in ground terminal 204 along the longitudinal reference direction in the second side, The second ground conductor c′ extends from the feeding ground terminal 204 along the first direction, and includes a first portion on the first side and a second portion on the second side.
该第一接地导体具有一第一导体支部a’以及一第二导体支部b’，其中该第一导体支部a’平行于该第二导体路径b，而该第二导体支部b’平行于该第一导体路径a。该第一导体支部a’与该第二导体支部b’之间具有一直角，且该第一导体支部a’的两侧分别连接于该第二导体支部b’及该第二接地导体c’。The first ground conductor has a first conductor branch a' and a second conductor branch b', wherein the first conductor branch a' is parallel to the second conductor path b, and the second conductor branch b' is parallel to the The first conductor path a. There is a right angle between the first conductor branch a' and the second conductor branch b', and both sides of the first conductor branch a' are respectively connected to the second conductor branch b' and the second ground conductor c' .
该辐射部201与该接地部202的尺寸可依据所设计的产品的外壳而变化，如图2(a)中的虚线至该辐射部201或该接地部202的复数区域所示。该第一导体路径a、第三导体路径c、第四导体路径d以及第五导体路径e的宽度可调整以微调该天线结构的效率以及返回损失的程度。此外，区域(虚线至该接地部202)的移除不会对该天线结构200的阻抗匹配有显著的影响，而该补块开槽206的尺寸会对该天线结构200的阻抗匹配有显著的影响。The size of the radiating part 201 and the grounding part 202 can vary according to the designed product casing, as shown in Fig. shown. The widths of the first conductor path a, the third conductor path c, the fourth conductor path d and the fifth conductor path e can be adjusted to fine-tune the efficiency of the antenna structure and the degree of return loss. In addition, the area The removal of (dotted line to the ground portion 202 ) will not have a significant impact on the impedance matching of the antenna structure 200 , whereas the size of the patch slot 206 will have a significant impact on the impedance matching of the antenna structure 200 .
如图2(b)所示，该辐射部201与该接地部202的设计，使该第一导体路径a与该第二导体支部b’的电流路径(如→所示)方向一致且平行，导致电流的耦合反应，进而使得在698～960MHz频段的该天线结构200具有高达60％且稳定的效率。As shown in FIG. 2(b), the design of the radiating part 201 and the grounding part 202 makes the direction of the first conductor path a and the current path of the second conductor branch b' (as shown by →) consistent and parallel, This leads to a coupling reaction of the current, thereby enabling the antenna structure 200 to have a stable efficiency as high as 60% in the 698-960 MHz frequency band.
如图2(a)及图2(b)所示，天线结构200除了包含设置于该第一导体路径a和该第一接地导体之间的该第一空隙外，还包含设置于该第一导体路径a和该第一接地导体之间并与该第一空隙相通的一第二空隙、设置于该第二导体路径b和该第一接地导体之间并与该第二空隙相通的一第三空隙以及设置于该辐射补块205和该第三导体路径c、该第四导体路径d、该第五导体路径e、该第六导体路径f之间的一第四空隙。As shown in FIG. 2(a) and FIG. 2(b), the antenna structure 200 includes not only the first gap disposed between the first conductor path a and the first ground conductor, but also a A second gap between the conductor path a and the first ground conductor and communicating with the first gap, a first gap arranged between the second conductor path b and the first ground conductor and communicating with the second gap Three gaps and a fourth gap disposed between the radiation patch 205 and the third conductor path c, the fourth conductor path d, the fifth conductor path e, and the sixth conductor path f.
根据本发明的一实施例，该等导体路径a、b、c、d、e及该延伸部2011的一第一总长度大于该第一接地导体a’、b’及该第二接地导体c’的一第二总长度，其中该第一总长度约为该第二总长度的2倍。According to an embodiment of the present invention, a first total length of the conductor paths a, b, c, d, e and the extension portion 2011 is greater than the first ground conductor a', b' and the second ground conductor c ', wherein the first overall length is approximately twice the second overall length.
如图2(c)所示，该第一导体路径a具有一第一距离D1、一第二距离D2以及一第三距离D3。该第二导体路径b具有一第四距离D4。该第三导体路径c具有一第五距离D5、一第六距离D6以及一第七距离D7。该第四导体路径d具有一第八距离D8。该第五导体路径e具有一第九距离D9以及一第十距离D10。该延伸部2011具有一第十一距离D11。该辐射补块205具有一第十二距离D12、一第十三距离D13以及一第十四距离D14。As shown in FIG. 2( c ), the first conductor path a has a first distance D1 , a second distance D2 and a third distance D3 . The second conductor path b has a fourth distance D4. The third conductor path c has a fifth distance D5, a sixth distance D6 and a seventh distance D7. The fourth conductor path d has an eighth distance D8. The fifth conductor path e has a ninth distance D9 and a tenth distance D10. The extension portion 2011 has an eleventh distance D11. The radiation patch 205 has a twelfth distance D12 , a thirteenth distance D13 and a fourteenth distance D14 .
该第一距离D1大于该第二距离D2，该第二距离D2大于该第三距离D3，该第三距离D3小于该第一距离D1的1/2长，该第一距离D1小于该第四距离D4的1/2长，该第三距离D3约略等于该第五距离D5，该第六距离D6大于该第七距离D7，该第八距离D8约略等于该第五距离D5，该第九距离D9约略等于该第七距离D7，该第八距离D8约略等于该第五距离D5，该第九距离D9约略等于该第七距离D7，该第十距离D10约略等于该第六距离D6，该第十一距离D11小于该第一距离D1但大于该第二距离D2，该第十二距离D12约略等于该第四距离D4，该第十三距离D13小于该第十二距离D12，而该第十四距离D14约略等于该第四距离D4的1/3长，其中该第二距离D2与该第四距离D4的和等于一总宽度，而该第六距离D6与该第十二距离D12的和也等于该总宽度。The first distance D1 is greater than the second distance D2, the second distance D2 is greater than the third distance D3, the third distance D3 is less than 1/2 of the first distance D1, and the first distance D1 is less than the fourth 1/2 of the distance D4 is long, the third distance D3 is approximately equal to the fifth distance D5, the sixth distance D6 is greater than the seventh distance D7, the eighth distance D8 is approximately equal to the fifth distance D5, and the ninth distance D9 is approximately equal to the seventh distance D7, the eighth distance D8 is approximately equal to the fifth distance D5, the ninth distance D9 is approximately equal to the seventh distance D7, the tenth distance D10 is approximately equal to the sixth distance D6, and the ninth distance D9 is approximately equal to the seventh distance D7. The eleventh distance D11 is smaller than the first distance D1 but larger than the second distance D2, the twelfth distance D12 is approximately equal to the fourth distance D4, the thirteenth distance D13 is smaller than the twelfth distance D12, and the tenth The fourth distance D14 is approximately equal to 1/3 of the fourth distance D4, wherein the sum of the second distance D2 and the fourth distance D4 is equal to a total width, and the sum of the sixth distance D6 and the twelfth distance D12 Also equal to this total width.
该第二接地导体支部b’具有一第十五距离S1以及一第十六距离S2，该第一接地导体支部a’具有一第十七距离S3，而该第二接地导体c’具有一第十八距离S4及一第十九距离S5。The second ground conductor branch b' has a fifteenth distance S1 and a sixteenth distance S2, the first ground conductor branch a' has a seventeenth distance S3, and the second ground conductor c' has a first distance S2. An eighteenth distance S4 and a nineteenth distance S5.
该第十五距离S1小于该第十六距离S2，该第十五距离S1小于该第十七距离S3的1/2长，该第十八距离S4小于该第十七距离S3但略大于该第十九距离S5，而该第十七距离S3略等于该第十三距离D13。The fifteenth distance S1 is smaller than the sixteenth distance S2, the fifteenth distance S1 is less than 1/2 of the seventeenth distance S3, and the eighteenth distance S4 is smaller than the seventeenth distance S3 but slightly larger than the seventeenth distance S3. The nineteenth distance S5, and the seventeenth distance S3 is slightly equal to the thirteenth distance D13.
该第二空隙具有一第二十距离L1及一第二十一距离L2，该第三空隙具有一第二十二距离L3，而该第四空隙具有一第二十三距离L4、一第二十四距离L5及一第二十五距离L6。The second gap has a twentieth distance L1 and a twenty-first distance L2, the third gap has a twenty-second distance L3, and the fourth gap has a twenty-third distance L4, a second Fourteen distances L5 and one twenty-fifth distance L6.
第二十距离L1小于该第二十一距离L2且小于该第二十二距离L3的1/2长，该第二十三距离L4略大于该第二十四距离L5，而第二十五距离L6略大于该第二十三距离L4的1/2长，其中该第六距离D6、该第十距离L6略大于该第二十三距离L4的1/2长，其中该第六距离S2、该第十距离D10与该第二十三距离L4的和等于该总宽度，该第十六距离S2、该第二距离D2与该第二十一距离L2的和也等于该总宽度，而该第六距离D6、该第二十五距离L6、该第十一距离D11与该第十距离D10的和也等于该总宽度。The twentieth distance L1 is less than the twenty-first distance L2 and less than 1/2 of the twenty-second distance L3, the twenty-third distance L4 is slightly greater than the twenty-fourth distance L5, and the twenty-fifth The distance L6 is slightly longer than 1/2 of the twenty-third distance L4, wherein the sixth distance D6 and the tenth distance L6 are slightly longer than 1/2 of the twenty-third distance L4, wherein the sixth distance S2 , the sum of the tenth distance D10 and the twenty-third distance L4 is equal to the total width, the sum of the sixteenth distance S2, the second distance D2 and the twenty-first distance L2 is also equal to the total width, and The sum of the sixth distance D6, the twenty-fifth distance L6, the eleventh distance D11 and the tenth distance D10 is also equal to the total width.
该第六距离D6及该第十距离D10小于该第二十三距离L4的1/2长，该第二距离D2略小于该第二十一距离L2，该第二十一距离L2小于该第十六距离S2，而该第六距离D6略等于该第十距离D10且略大于该第二十五距离L6或该第十一距离D11的1/2长。The sixth distance D6 and the tenth distance D10 are less than 1/2 of the twenty-third distance L4, the second distance D2 is slightly less than the twenty-first distance L2, and the twenty-first distance L2 is less than the twenty-first distance L2. The sixteenth distance S2, and the sixth distance D6 is slightly equal to the tenth distance D10 and slightly longer than 1/2 of the twenty-fifth distance L6 or the eleventh distance D11.
此外，该讯号馈入端203及该馈入接地端204的设计，是在不改变整体尺寸的情况下，使该天线结构200在LTE频段具有优异的操作频率。In addition, the design of the signal feed-in terminal 203 and the feed-in ground terminal 204 enables the antenna structure 200 to have an excellent operating frequency in the LTE frequency band without changing the overall size.
请参阅图3，其是本发明的天线结构200的返回损失的测试结果图。图3的纵轴为返回损失(单位：dB)，而横轴为频率(单位：MHz)。观察返回损失为-6dB时的操作频率，可知该天线结构200在650-960MHz的频段显示出该天线结构200的阻抗匹配良好。Please refer to FIG. 3 , which is a test result diagram of the return loss of the antenna structure 200 of the present invention. The vertical axis of Fig. 3 is return loss (unit: dB), while the horizontal axis is frequency (unit: MHz). Observing the operating frequency when the return loss is -6dB, it can be known that the antenna structure 200 has good impedance matching in the frequency band of 650-960 MHz.
请参阅图4，其是本发明的天线结构的频率-效率结果图。图4的纵轴为效率(单位：％)，而横轴为频率(单位：MHz)。观察该图可知在698-960MHz的频段中该天线结构的效率高达60％。Please refer to FIG. 4 , which is a frequency-efficiency graph of the antenna structure of the present invention. The vertical axis of FIG. 4 is efficiency (unit: %), and the horizontal axis is frequency (unit: MHz). Observing the figure, it can be seen that the efficiency of the antenna structure is as high as 60% in the frequency band of 698-960MHz.
综上所述，本发明提供一种可轻易调整以达成产品应用的印刷式耦合式天线。已知PIFA天线频宽较窄，天线要应用在宽频系统上，结构复杂，并不易于不同的环境下做频段微调。且如果可以不用调整频带而达到多系统共用，则可有效节省成本支出。所以，本发明的印刷式偶极天线结构易于在不同的环境下针对需要的频段来作调整。再者，由于本发明的印刷式偶极天线结构的设计是直接在PCB板上印刷天线结构，这样不仅可减少立体式天线的模具成本支出，还可节省生产组装的成本。因此，本发明所提供的天线结构符合现今电子产业的低毛利的优点，并可应用在各种环境的无线网络装置中，另外，还可轻易应用在不同的产品上。本发明将该接地部的电流路径与辐射部的辐射路径呈同方向延伸，使得该天线结构于低频LTE频段区域处均可达成近60％的效率。此外，该天线讯号馈入的方式是直接以50Ω的Cable焊接在天线的讯号馈入端，而该Cable的另一端则可任意延伸至RF信号模块端，使得该天线结构可在独立的PCB板上且不需再与额外的系统连接而操作，或可在与系统地搭配的多选择性下而使用，因此本发明的天线结构还具备独立调整机制，可便于做不同的多元应用。To sum up, the present invention provides a printed coupled antenna that can be easily adjusted to achieve product applications. It is known that the bandwidth of the PIFA antenna is narrow, and the antenna should be applied to a broadband system, and the structure is complex, and it is not easy to fine-tune the frequency band in different environments. And if it is possible to achieve multi-system sharing without adjusting frequency bands, it can effectively save costs. Therefore, the printed dipole antenna structure of the present invention is easy to adjust to the required frequency band in different environments. Furthermore, since the design of the printed dipole antenna structure of the present invention is to directly print the antenna structure on the PCB, it can not only reduce the mold cost of the three-dimensional antenna, but also save the cost of production and assembly. Therefore, the antenna structure provided by the present invention conforms to the advantages of low gross profit in the current electronic industry, and can be applied to wireless network devices in various environments, and can also be easily applied to different products. The present invention extends the current path of the grounding part and the radiation path of the radiation part in the same direction, so that the antenna structure can achieve an efficiency of nearly 60% in the low-frequency LTE frequency band region. In addition, the signal feed-in method of the antenna is directly welded to the signal feed-in end of the antenna with a 50Ω Cable, and the other end of the Cable can be arbitrarily extended to the RF signal module end, so that the antenna structure can be mounted on an independent PCB board The antenna structure of the present invention also has an independent adjustment mechanism, which is convenient for different multiple applications.
本发明虽以较佳实施例揭露如上，但其并非用以限定本发明的范围，任何熟悉本领域的技术人员，在不脱离本发明的精神和范围内所做的变动与修改，都应属于本发明权利要求的保护范围。Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the scope of the present invention. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall belong to The scope of protection of the claims of the present invention.
【符号说明】【Symbol Description】
100、200：天线结构100, 200: antenna structure
101、201：辐射部101, 201: Radiation Department
2011：延伸部2011: Extension
102、202：接地部102, 202: Grounding part
103、203：讯号馈入端103, 203: signal feed-in terminal
104、204：馈入接地端104, 204: feed into the ground terminal
105、205：辐射补块105, 205: radiation patches
106、206：补块开槽106, 206: patch slotting
107、207：基板107, 207: substrate
a-f：导体路径a-f: conductor path
a’、b’：接地导体支部a', b': grounding conductor branch
G、c’：接地导体G, c': grounding conductor
①-⑤：位置①-⑤: Position
区域 area
→：电流路径→: current path
D1-D14、S1-S2、L1-L6：距离D1-D14, S1-S2, L1-L6: Distance
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357093.8ACN106299616A (en) | 2015-06-25 | 2015-06-25 | antenna structure |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357093.8ACN106299616A (en) | 2015-06-25 | 2015-06-25 | antenna structure |
| Publication Number | Publication Date |
|---|---|
| CN106299616Atrue CN106299616A (en) | 2017-01-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510357093.8APendingCN106299616A (en) | 2015-06-25 | 2015-06-25 | antenna structure |
| Country | Link |
|---|---|
| CN (1) | CN106299616A (en) |
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| CN108306104A (en)* | 2017-01-11 | 2018-07-20 | 智易科技股份有限公司 | Dual-band dipole antenna and electronic system |
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| US20060244665A1 (en)* | 2005-04-29 | 2006-11-02 | Benq Corporation | Antenna assembly for use in a portable telecommunication device |
| US20100117909A1 (en)* | 2008-11-07 | 2010-05-13 | Microsoft Corporation | Bent monopole antenna with shared segments |
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| CN204303983U (en)* | 2015-01-12 | 2015-04-29 | 成都数字媒体产业化基地有限公司 | Antenna structure |
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| CN108306104A (en)* | 2017-01-11 | 2018-07-20 | 智易科技股份有限公司 | Dual-band dipole antenna and electronic system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20170104 | |
| WD01 | Invention patent application deemed withdrawn after publication |