WO2013078793A1 - Antenna and terminal - Google Patents

Antenna and terminal Download PDF

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Publication number
WO2013078793A1
WO2013078793A1 PCT/CN2012/072050 CN2012072050W WO2013078793A1 WO 2013078793 A1 WO2013078793 A1 WO 2013078793A1 CN 2012072050 W CN2012072050 W CN 2012072050W WO 2013078793 A1 WO2013078793 A1 WO 2013078793A1
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WO
WIPO (PCT)
Prior art keywords
coupling circuit
antenna
current
feeding point
feed point
Prior art date
Application number
PCT/CN2012/072050
Other languages
French (fr)
Chinese (zh)
Inventor
杨皎皎
张璐
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013078793A1 publication Critical patent/WO2013078793A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to an antenna and a terminal. Background technique
  • SAR Specific Absorption Ratio
  • TRP Total Radiated Power
  • the technical solution for reducing the SAR value is achieved by reducing the TRP value, that is, the technical solution for reducing the output power of the antenna, so that there is an influence day. Line output power, and thus technical problems affecting terminal signal transmission;
  • the present invention provides an antenna and a terminal for solving the technical problem that the antenna output power is affected by reducing the TRP value to reduce the SAR value in the prior art.
  • An antenna includes the following structure:
  • a first coupling circuit connected to the first feed point, the first coupling circuit for supplying a first current through the first coupling circuit to the first feed point;
  • a second coupling circuit connected to the second feed point, wherein the second coupling circuit is configured to provide a second current through the second coupling circuit to the second feed point, wherein the A current is opposite to the direction of the second current.
  • the antenna further includes:
  • An integrated coupler coupled to the first coupling circuit and the second coupling circuit, the integrated coupler for providing a first current to the first coupling circuit and a second current to the second coupling circuit. Further, the first feeding point is connected to the antenna body through the first coupling circuit.
  • first feed point and the second feed point have a phase difference of 180 degrees. Further, the second feeding point is 1 to 1.
  • a terminal includes the following structure:
  • An antenna the antenna is disposed on the PCB, wherein the antenna specifically includes: an antenna body;
  • a first coupling circuit connected to the first feed point, the first coupling circuit for supplying a first current through the first coupling circuit to the first feed point;
  • a second coupling circuit connected to the second feed point, wherein the second coupling circuit is configured to provide a second current through the second coupling circuit to the second feed point, wherein the A current is opposite to the direction of the second current.
  • the antenna further includes:
  • An integrated coupler is coupled to the first coupling circuit and the second coupling circuit, the integrated coupler for supplying a first current to the first coupling circuit and a second current to the second coupling circuit.
  • the first feeding point is connected to the antenna main body through the first coupling circuit.
  • first feed point and the second feed point have a phase difference of 180 degrees. Further, the second feeding point is 1 to 1.
  • a technique for generating a differential mode circuit is achieved by adding a feed point on the antenna and feeding back the newly added feed point through the coupling circuit of the antenna, thereby eliminating the common mode signal. The interference, thereby reducing the technical effect of the SAR value;
  • FIG. 1 is a structural diagram of an antenna according to Embodiment 1 of the present invention.
  • FIG. 2 is a structural diagram of a ⁇ 3 ⁇ 4 band antenna according to Embodiment 2 of the present invention.
  • FIG. 3 is a structural diagram of a bracket antenna according to Embodiment 3 of the present invention.
  • FIG. 4 is a structural diagram of a terminal based on a bracket antenna according to Embodiment 4 of the present invention
  • FIG. 5 is a structural diagram of a data card based on a microstrip antenna according to Embodiment 5 of the present invention.
  • an antenna is provided in Embodiment 1 of the present invention. As shown in FIG. 1 , the antenna includes the following structure:
  • Antenna body 101 Antenna body 101 ;
  • a first feeding point 102 is connected to the antenna body 101;
  • a first coupling circuit 104 connected to the first feeding point 102, the first coupling circuit 104 is used to provide a first current through the first coupling circuit 104 to the first feeding point 102; a second coupling circuit 105 is connected to the second feeding point 103, and the second coupling circuit 105 is configured to provide a second current through the second coupling circuit 105 to the second feeding point 103. Wherein the first current and the second current are opposite in direction.
  • the first coupling circuit 104 and the second coupling circuit 105 are configured to provide a reverse current to the first feeding point 102 and the second feeding point 103, thereby forming a differential mode circuit, thereby utilizing the differential mode circuit.
  • Mode eliminates the interference of common mode signals, and achieves the purpose of reducing the SAR value.
  • the antennas herein may include many types, such as a monopole antenna, a microstrip antenna, an IFA (Inverted F Antenna) antenna, a PIFA antenna, and the like. It is within the scope of the present invention to achieve the technical effects achieved by the antennas employed by those skilled in the art and the technical effects of the embodiments of the present invention.
  • phase difference between the first feed point 102 and the second feed point 103 is 180 degrees
  • the best differential mode circuit effect can be achieved.
  • 180 degrees is only a preferred embodiment, and the phase difference between the first feeding point 102 and the second feeding point 103 is not limited in the present invention as long as the first feeding point 102 and the second feeding point are A differential mode circuit can be formed between points 103, and is within the scope of the present invention.
  • the number of the second feeding points 103 is preferably 1 to 2, because if there are too many feeding points on the antenna, the power loss of the antenna will be large, of course.
  • the number of the second feeding points 103 is not limited, as long as the second feeding point 103 employed by those skilled in the art can achieve the effect of generating a differential mode circuit with the first feeding point 102, Within the scope of the invention.
  • a second embodiment of the present invention provides a microstrip antenna, which mainly includes the following structure: an antenna body 201;
  • a second feeding point 203 connected to the antenna body 201;
  • a first coupling circuit 204 coupled to the first feed point 202, the first coupling circuit 204 Providing a first current through the first coupling circuit 204 to the first feeding point 202; wherein the first feeding point 202 is connected to the antenna body 201 through the first coupling circuit 204; the second coupling circuit 205, connected to the second feeding point 203, the second coupling circuit 205 is configured to provide a second current through the second coupling circuit 205 to the second feeding point 203, wherein The first current and the second current are opposite in direction.
  • the spacing 206 between the first coupling circuit 204 and the second coupling circuit 205 may be different. Based on the spacing 206, the first coupling circuit 204 and the first coupling circuit may be adjusted. The degree of coupling between the two coupling circuits 205 further adjusts the influence of the first coupling circuit 204 and the second coupling circuit 205 on the transmission and reception performance of the antenna, thereby achieving the purpose of reducing the SAR value.
  • phase difference between the first feed point 202 and the second feed point 203 is 180 degrees, the best differential mode circuit effect can be achieved.
  • 180 degrees is only a preferred embodiment, and the phase difference between the first feeding point 202 and the second feeding point 203 is not limited in the present invention as long as the first feeding point 202 and the second feeding point are A differential mode circuit can be formed between points 203, which is within the scope of the present invention.
  • the number of the second feeding points 203 is preferably 1 to 2, because if the feeding point on the antenna is too much, the antenna power loss is large, of course.
  • the number of the second feeding points 203 is not limited as long as the second feeding point 203 employed by those skilled in the art can achieve the effect of generating a differential mode circuit with the first feeding point 202. Within the scope of the invention.
  • a third embodiment of the present invention provides a bracket antenna, which mainly includes the following structure: an antenna body 301;
  • a first feeding point 302 is connected to the antenna body 301;
  • a second feeding point 303 is connected to the antenna body 301;
  • a first coupling circuit 304 connected to the first feeding point 302, the first coupling circuit 304 For supplying a first current through the first coupling circuit 304 to the first feeding point 302; a second coupling circuit 305 connected to the second feeding point 303, the second coupling circuit 305 Providing a second current through the second coupling circuit 305 to the second feeding point 303, wherein the first current and the second current are opposite in direction;
  • An integrated coupler 306 is coupled to the first coupling circuit 304 and the second coupling circuit 305, the integrated coupler 306 is configured to provide a first current to the first coupling circuit 304, to the second coupling Circuit 305 provides a second current.
  • the first coupling circuit 304 and the second coupling circuit 305 can be adjusted by adjusting the coupling degree of the integrated coupler, thereby adjusting the transmitting and receiving performance of the antenna, thereby achieving the SAR value.
  • phase difference between the first feed point 302 and the second feed point 303 is 180 degrees, the best differential mode circuit effect can be achieved.
  • 180 degrees is only a preferred embodiment, and the phase difference between the first feeding point 302 and the second feeding point 303 is not limited in the present invention as long as the first feeding point 302 and the second feeding point are A differential mode circuit can be formed between points 303, and is within the scope of the present invention.
  • the number of the second feeding points 303 is preferably 1 to 2, because if there are too many feeding points on the antenna, the power loss of the antenna will be large, of course.
  • the number of the second feeding points 303 is not limited as long as the second feeding point 303 employed by those skilled in the art can achieve the effect of generating a differential mode circuit with the first feeding point 302. Within the scope of the invention.
  • a fourth embodiment of the present invention provides a terminal, which mainly includes the following structures:
  • An antenna the antenna is disposed on the PCB, wherein the antenna specifically includes: an antenna body 402;
  • a first feeding point 403 connected to the antenna body 402;
  • a second feed point 404 connected to the antenna body 402;
  • first coupling circuit 405 connected to the first feeding point 403, the first coupling circuit 405 is configured to provide a first current through the first coupling circuit 405 to the first feeding 403; a second coupling circuit 406 coupled to the second feed point 404, the second coupling circuit 406 for providing a second current through the second coupling circuit 404 to the second feed point 404, wherein The first current and the second current are opposite in direction.
  • the antenna further includes the following structure:
  • An integrated coupler 407 coupled to the first coupling circuit and the second coupling circuit, the integrated coupler for supplying a first current to the first coupling circuit and a second current to the second coupling circuit .
  • first feed point 403 and the second feed point 404 have a phase difference of 180 degrees.
  • the second feeding point 404 is 1 to 2.
  • the specific structure and variation of the terminal in the fourth embodiment of the present invention can be known to those skilled in the art based on the antennas described in Embodiments 1, 2, and 3 of the present invention.
  • the terminals manufactured by the antennas of the first, second and third embodiments of the invention are all within the scope of the invention.
  • a fifth embodiment of the present invention provides a data card, which mainly includes the following structure:
  • the microstrip antenna is disposed on the PCB board 501, wherein the antenna specifically includes:
  • Antenna body 502 is antenna body 502;
  • a second feeding point 504 connected to the antenna body 502; a first coupling circuit 505 is coupled to the first feed point 503, the first coupling circuit 505 is configured to provide a first current through the first coupling circuit 505 to the first feed point 503; a second coupling circuit 506 is coupled to the second feed point 504, and the second coupling circuit 506 is configured to provide a second current through the second coupling circuit 506 to the second feed point 504. Wherein the first current and the second current are opposite in direction.
  • first feeding point 503 is connected to the antenna body 502 through the first coupling circuit 505.
  • first feed point 503 and the second feed point 504 have a phase difference of 180 degrees.
  • the second feeding point 504 is 1 to 2.
  • the terminal in the present invention is not limited to a data card, and may be a mobile phone, a telephone, a computer, etc., as long as the antenna used is an antenna in the embodiment of the present invention, and belongs to the scope of the present invention.
  • the antenna used in the data card in Embodiment 5 of the present invention corresponds to the antenna described in Embodiments 1, 2, and 3 of the present invention.
  • the specific structure and variation of the terminal in the fifth embodiment of the present invention can be known to those skilled in the art based on the antennas described in Embodiments 1, 2, and 3 of the present invention.
  • the terminals manufactured by the antennas of the first, second and third embodiments of the invention are all within the scope of the invention.
  • a technique for generating a differential mode circuit is achieved by adding a feed point on the antenna and feeding back the newly added feed point through the coupling circuit of the antenna, thereby eliminating the common mode signal.
  • the interference thereby reducing the technical effect of the SAR value

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  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Disclosed are an antenna and a terminal. The antenna comprises: an antenna body; a first feeding point, connected to the antenna body; a second feeding point, connected to the antenna body; a first coupling circuit, connected to the first feeding point, and used for providing the first feeding point with a first current flowing through the first coupling circuit; and a second coupling circuit, connected to the second feeding point, and used for providing the second feeding point with a second current flowing through the second coupling circuit. The directions of the first current and the second current are opposite. The present invention can eliminate interference of a common-mode signal, hence reducing the SAR value without reducing the overall performance of the antenna, that is, without reducing the TRP value.

Description

一种天线及终端 技术领域  Antenna and terminal technology field
本发明涉及移动通信领域， 尤其涉及一种天线及终端。 背景技术  The present invention relates to the field of mobile communications, and in particular, to an antenna and a terminal. Background technique
随着全球信息化技术的发展， 终端产品已经完全渗入人们的生活。 其 中， 手机已经成为大多数人所采用的快捷沟通方式； 数据卡也成为商务人 士不可或缺的工具之一。 这些移动终端的使用， 在给人们的生活带来便捷 的同时， 也带来了一些隐患。 当人们使用这些终端产品时， 这些终端产品 都会向基站发送无线电波， 而这些无线电波会对人体产生辐射， 故而， 在 终端设计中， 降低终端工作时对人体的辐射， 是一个至关重要的方面。  With the development of global information technology, end products have completely infiltrated people's lives. Among them, mobile phones have become the fast communication method adopted by most people; data cards have become an indispensable tool for business people. The use of these mobile terminals brings convenience to people's lives, but also brings some hidden dangers. When people use these terminal products, these terminal products will send radio waves to the base station, and these radio waves will radiate to the human body. Therefore, in the terminal design, it is crucial to reduce the radiation to the human body when the terminal works. aspect.
SAR ( Specific Absorbtion Ratio: 比吸收率 )是测量人体在使用终端时， 所吸收的射频能量的数量单位， 也就是用于表征终端对人体的辐射度。 而 终端的另一个被人们所关注的性能则为 TRP ( Total Radiated Power: 总辐射 功率）， TRP反映的是天线远场的辐射性能。  SAR (Specific Absorption Ratio) is a measure of the amount of radio frequency energy absorbed by a human body when it is used, that is, it is used to characterize the radiance of the terminal to the human body. Another performance of the terminal that is concerned by people is TRP (Total Radiated Power), which reflects the radiation performance of the far field of the antenna.
在现有技术中， 为了降低 SAR值， 存在如下两种方案：  In the prior art, in order to reduce the SAR value, there are two solutions as follows:
( 1 )在终端中采用 SAR值较低的 PIFA ( Planar Inverted F Antenna: 平 面倒 F )天线， 然后将天线放置在终端底部， 如果在设计后期发现 SAR值 超标的话， 那么降低天线的输出功率也就是 TRP值， 来降低 SAR值；  (1) Using a PIFA (Planar Inverted F Antenna) antenna with a lower SAR value in the terminal, and then placing the antenna at the bottom of the terminal. If the SAR value is found to be excessive in the later stage of the design, then the output power of the antenna is also reduced. Is the TRP value to reduce the SAR value;
( 2 )在移动终端的表面涂上吸波材料或者防辐射层等，用以防止辐射。 在实现本发明实施例中技术方案的过程中， 申请人发现现有技术中至 少存在如下问题：  (2) Apply a absorbing material or a radiation-proof layer to the surface of the mobile terminal to prevent radiation. In the process of implementing the technical solution in the embodiment of the present invention, the applicant finds that at least the following problems exist in the prior art:
( 1 )由于在现有技术一中，采用的是通过降低 TRP值也就是降低天线 输出功率的技术方案， 来达到降低 SAR值的技术效果， 故而存在着影响天 线输出功率、 故而影响终端信号发送的技术问题； (1) In the prior art 1, the technical solution for reducing the SAR value is achieved by reducing the TRP value, that is, the technical solution for reducing the output power of the antenna, so that there is an influence day. Line output power, and thus technical problems affecting terminal signal transmission;
( 2 ) 由于在现有技术二中， 采用的是通过吸波材料或防辐射层来吸收 辐射从而降低 SAR值， 所以存在着生产成本较高的技术问题；  (2) Since in the prior art 2, the absorption of radiation by the absorbing material or the radiation shielding layer is employed to reduce the SAR value, there is a technical problem of high production cost;
( 3 ) 由于在现有技术二中， 采用的是通过吸波材料或防辐射层来吸收 辐射从而降低 SAR值， 而吸波材料和防辐射层在吸收辐射时， 也会吸收有 用信号， 故而存在着降低天线输出功率、 影响终端信号发送的技术问题。 发明内容  (3) In the prior art 2, the SAR value is absorbed by absorbing the radiation material or the radiation shielding layer, and the absorbing material and the radiation shielding layer absorb the useful signal when absorbing the radiation, so There are technical problems that reduce the antenna output power and affect the transmission of the terminal signal. Summary of the invention
本发明提供一种天线和终端， 用以解决现有技术中， 由于采用的是通 过降低 TRP值来达到降低 SAR值的技术方案，而存在着影响天线输出功率 的技术问题。  The present invention provides an antenna and a terminal for solving the technical problem that the antenna output power is affected by reducing the TRP value to reduce the SAR value in the prior art.
本发明通过本发明中的实施例， 提供如下技术方案：  The present invention provides the following technical solutions through the embodiments in the present invention:
一方面， 本发明通过本发明中的一个实施例， 提供如下技术方案： 一种天线， 包括如下结构：  In one aspect, the present invention provides the following technical solution through an embodiment of the present invention: An antenna includes the following structure:
天线主体；  Antenna body;
第一馈电点， 连接于所述天线主体；  a first feeding point connected to the antenna body;
第二馈电点， 连接于所述天线主体；  a second feed point connected to the antenna body;
第一耦合电路， 连接于所述第一馈电点， 所述第一耦合电路用于将经 过所述第一耦合电路的第一电流提供给所述第一馈电点；  a first coupling circuit connected to the first feed point, the first coupling circuit for supplying a first current through the first coupling circuit to the first feed point;
第二耦合电路， 连接于所述第二馈电点， 所述第二耦合电路用于将经 过所述第二耦合电路的第二电流提供给所述第二馈电点， 其中， 所述第一 电流和所述第二电流的方向相反。  a second coupling circuit connected to the second feed point, wherein the second coupling circuit is configured to provide a second current through the second coupling circuit to the second feed point, wherein the A current is opposite to the direction of the second current.
进一步的， 所述天线还包括：  Further, the antenna further includes:
集成耦合器， 连接于所述第一耦合电路和所述第二耦合电路， 所述集 成耦合器用于给所述第一耦合电路提供第一电流， 给所述第二耦合电路提 供第二电流。 进一步的， 所述第一馈电点通过所述第一耦合电路连接于所述天线主 体。 An integrated coupler coupled to the first coupling circuit and the second coupling circuit, the integrated coupler for providing a first current to the first coupling circuit and a second current to the second coupling circuit. Further, the first feeding point is connected to the antenna body through the first coupling circuit.
进一步的， 所述第一馈电点和所述第二馈电点具有 180度相位差。 进一步的， 所述第二馈电点为 1到 1个。  Further, the first feed point and the second feed point have a phase difference of 180 degrees. Further, the second feeding point is 1 to 1.
另一方面， 本发明通过本发明中的另一实施例提供如下技术方案： 一种终端， 包括如下结构：  On the other hand, the present invention provides the following technical solution through another embodiment of the present invention: A terminal includes the following structure:
PCB板；  PCB board
天线， 所述天线设置于所述 PCB板上面， 其中所述天线具体包括： 天线主体；  An antenna, the antenna is disposed on the PCB, wherein the antenna specifically includes: an antenna body;
第一馈电点， 连接于所述天线主体；  a first feeding point connected to the antenna body;
第二馈电点， 连接于所述天线主体；  a second feed point connected to the antenna body;
第一耦合电路， 连接于所述第一馈电点， 所述第一耦合电路用于将经 过所述第一耦合电路的第一电流提供给所述第一馈电点；  a first coupling circuit connected to the first feed point, the first coupling circuit for supplying a first current through the first coupling circuit to the first feed point;
第二耦合电路， 连接于所述第二馈电点， 所述第二耦合电路用于将经 过所述第二耦合电路的第二电流提供给所述第二馈电点， 其中， 所述第一 电流和所述第二电流的方向相反。  a second coupling circuit connected to the second feed point, wherein the second coupling circuit is configured to provide a second current through the second coupling circuit to the second feed point, wherein the A current is opposite to the direction of the second current.
进一步的， 所述天线还包括：  Further, the antenna further includes:
集成耦合器， 连接于所述第一耦合电路和所述第二耦合电路， 所述集 成耦合器用于给所述第一耦合电路提供第一电流， 给所述第二耦合电路提 供第二电流。  An integrated coupler is coupled to the first coupling circuit and the second coupling circuit, the integrated coupler for supplying a first current to the first coupling circuit and a second current to the second coupling circuit.
进一步的， 所述第一馈电点通过所述第一耦合电路连接于所述天线主 体。  Further, the first feeding point is connected to the antenna main body through the first coupling circuit.
进一步的， 所述第一馈电点和所述第二馈电点具有 180度相位差。 进一步的， 所述第二馈电点为 1到 1个。  Further, the first feed point and the second feed point have a phase difference of 180 degrees. Further, the second feeding point is 1 to 1.
本发明提供的一个或多个技术方案， 至少具有如下技术效果或优点： ( 1 ) 由于采用了基于在天线上增加馈电点， 并通过天线的耦合电路给 新增加的馈电点反向馈电， 从而生成一差模电路的技术方案， 故而达到了 消除共模信号的干扰、 从而降低 SAR值的技术效果； One or more technical solutions provided by the present invention have at least the following technical effects or advantages: (1) A technique for generating a differential mode circuit is achieved by adding a feed point on the antenna and feeding back the newly added feed point through the coupling circuit of the antenna, thereby eliminating the common mode signal. The interference, thereby reducing the technical effect of the SAR value;
( 2 ) 由于采用了基于在天线上增加馈电点， 并通过天线的耦合电路给 新增加的馈电点反向馈电， 从而生成一差模电路的技术方案， 故而达到了 在降低 SAR值的同时并不会降低天线整体性能也就是 TRP值的技术效果。 附图说明  (2) The technique of generating a differential mode circuit is achieved by adding a feeding point on the antenna and feeding back the newly added feeding point through the coupling circuit of the antenna, thereby achieving a reduction in the SAR value. At the same time, it does not reduce the overall performance of the antenna, that is, the technical effect of the TRP value. DRAWINGS
图 1为本发明实施例一中一种天线的结构图；  1 is a structural diagram of an antenna according to Embodiment 1 of the present invention;
图 2为本发明实施例二中一种^ ¾带天线的结构图；  2 is a structural diagram of a ^3⁄4 band antenna according to Embodiment 2 of the present invention;
图 3为本发明实施例三中一种支架天线的结构图；  3 is a structural diagram of a bracket antenna according to Embodiment 3 of the present invention;
图 4为本发明实施例四中一种基于支架天线的终端的结构图； 图 5为本发明实施例五中一种基于微带天线的数据卡的结构图。 具体实施方式  4 is a structural diagram of a terminal based on a bracket antenna according to Embodiment 4 of the present invention; and FIG. 5 is a structural diagram of a data card based on a microstrip antenna according to Embodiment 5 of the present invention. detailed description
为了使本发明所属技术领域中的技术人员更清楚地理解本发明， 下面 结合附图， 通过具体实施例对本发明技术方案作详细描述。  The technical solutions of the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
请参考图 1本发明实施例一提供一种天线， 如图 1所示， 所述天线包 括如下结构：  Referring to FIG. 1 , an antenna is provided in Embodiment 1 of the present invention. As shown in FIG. 1 , the antenna includes the following structure:
天线主体 101 ;  Antenna body 101 ;
第一馈电点 102 , 连接于所述天线主体 101 ;  a first feeding point 102 is connected to the antenna body 101;
第二馈电点 103 , 连接于所述天线主体 101 ;  a second feeding point 103 connected to the antenna body 101;
第一耦合电路 104,连接于所述第一馈电点 102 ,所述第一耦合电路 104 用于将经过所述第一耦合电路 104的第一电流提供给所述第一馈电点 102; 第二耦合电路 105 ,连接于所述第二馈电点 103 ,所述第二耦合电路 105 用于将经过所述第二耦合电路 105的第二电流提供给所述第二馈电点 103 , 其中， 所述第一电流和所述第二电流的方向相反。 a first coupling circuit 104, connected to the first feeding point 102, the first coupling circuit 104 is used to provide a first current through the first coupling circuit 104 to the first feeding point 102; a second coupling circuit 105 is connected to the second feeding point 103, and the second coupling circuit 105 is configured to provide a second current through the second coupling circuit 105 to the second feeding point 103. Wherein the first current and the second current are opposite in direction.
在具体实施过程中， 第一耦合电路 104、 第二耦合电路 105用于给第一 馈电点 102和第二馈电点 103提供反向电流， 故而形成差模电路， 从而利 用差模电路的模式， 消除共模信号的干扰， 达到降低 SAR值的目的。  In a specific implementation process, the first coupling circuit 104 and the second coupling circuit 105 are configured to provide a reverse current to the first feeding point 102 and the second feeding point 103, thereby forming a differential mode circuit, thereby utilizing the differential mode circuit. Mode, eliminates the interference of common mode signals, and achieves the purpose of reducing the SAR value.
在具体实施过程中， 这里的天线可以包括很多种， 比如单极子天线、 微带天线、 IFA ( Inverted F Antenna: 倒 F ) 天线、 PIFA天线等。 只要本领 域所述技术人员所采用的天线所达到的技术效果和本发明实施例中的技术 效果等同， 都属于本发明的范围。  In the specific implementation process, the antennas herein may include many types, such as a monopole antenna, a microstrip antenna, an IFA (Inverted F Antenna) antenna, a PIFA antenna, and the like. It is within the scope of the present invention to achieve the technical effects achieved by the antennas employed by those skilled in the art and the technical effects of the embodiments of the present invention.
进一步的， 在具体实施过程中， 所述第一馈电点 102和所述第二馈电 点 103之间的相位差如果为 180度， 能够达到最好的差模电路效果。 当然， 180度仅仅为一个优选实施例，在本发明中对于第一馈电点 102和第二馈电 点 103之间的相位差并不作限制， 只要第一馈电点 102和第二馈电点 103 之间能形成差模电路， 都属于本发明的范围内。  Further, in a specific implementation process, if the phase difference between the first feed point 102 and the second feed point 103 is 180 degrees, the best differential mode circuit effect can be achieved. Of course, 180 degrees is only a preferred embodiment, and the phase difference between the first feeding point 102 and the second feeding point 103 is not limited in the present invention as long as the first feeding point 102 and the second feeding point are A differential mode circuit can be formed between points 103, and is within the scope of the present invention.
进一步的， 在具体实施过程中， 所述第二馈电点 103 的个数最好为 1 至 2个， 因为如果天线上的馈电点过多， 将会导致天线功率的损耗较大， 当然， 在本发明中， 对第二馈电点 103 的数量不作限制， 只要本领域技术 人员所采用的第二馈电点 103能够达到和第一馈电点 102产生差模电路的 效果， 都属于本发明的范围内。  Further, in the specific implementation process, the number of the second feeding points 103 is preferably 1 to 2, because if there are too many feeding points on the antenna, the power loss of the antenna will be large, of course. In the present invention, the number of the second feeding points 103 is not limited, as long as the second feeding point 103 employed by those skilled in the art can achieve the effect of generating a differential mode circuit with the first feeding point 102, Within the scope of the invention.
下面分别以不同的天线为例， 来详细介绍基于不同的天线形成的差模 电路的过程。  The following is a detailed description of the process of the differential mode circuit formed by different antennas by taking different antennas as an example.
请参考图 2, 本发明实施例二提供一种微带天线， 主要包括如下结构： 天线主体 201 ;  Referring to FIG. 2, a second embodiment of the present invention provides a microstrip antenna, which mainly includes the following structure: an antenna body 201;
第一馈电点 202;  First feed point 202;
第二馈电点 203 , 连接于所述天线主体 201 ;  a second feeding point 203 connected to the antenna body 201;
第一耦合电路 204,连接于所述第一馈电点 202,所述第一耦合电路 204 用于将经过所述第一耦合电路 204的第一电流提供给所述第一馈电点 202; 其中， 第一馈电点 202通过第一耦合电路 204与天线主体 201相连； 第二耦合电路 205 ,连接于所述第二馈电点 203 ,所述第二耦合电路 205 用于将经过所述第二耦合电路 205的第二电流提供给所述第二馈电点 203 , 其中， 所述第一电流和所述第二电流的方向相反。 a first coupling circuit 204 coupled to the first feed point 202, the first coupling circuit 204 Providing a first current through the first coupling circuit 204 to the first feeding point 202; wherein the first feeding point 202 is connected to the antenna body 201 through the first coupling circuit 204; the second coupling circuit 205, connected to the second feeding point 203, the second coupling circuit 205 is configured to provide a second current through the second coupling circuit 205 to the second feeding point 203, wherein The first current and the second current are opposite in direction.
在具体实施过程中， 基于不同的微带天线设计， 第一耦合电路 204和 第二耦合电路 205之间的间距 206可以不同， 基于这个间距 206的不同， 就可以调整第一耦合电路 204和第二耦合电路 205之间的耦合度， 进而调 整第一耦合电路 204和第二耦合电路 205对于天线收发性能的影响， 从而 达到降低 SAR值的目的。  In a specific implementation process, based on different microstrip antenna designs, the spacing 206 between the first coupling circuit 204 and the second coupling circuit 205 may be different. Based on the spacing 206, the first coupling circuit 204 and the first coupling circuit may be adjusted. The degree of coupling between the two coupling circuits 205 further adjusts the influence of the first coupling circuit 204 and the second coupling circuit 205 on the transmission and reception performance of the antenna, thereby achieving the purpose of reducing the SAR value.
进一步的， 在具体实施过程中， 所述第一馈电点 202和所述第二馈电 点 203之间的相位差如果为 180度， 能够达到最好的差模电路效果。 当然， 180度仅仅为一个优选实施例，在本发明中对于第一馈电点 202和第二馈电 点 203之间的相位差并不作限制， 只要第一馈电点 202和第二馈电点 203 之间能形成差模电路， 都属于本发明的范围。  Further, in a specific implementation process, if the phase difference between the first feed point 202 and the second feed point 203 is 180 degrees, the best differential mode circuit effect can be achieved. Of course, 180 degrees is only a preferred embodiment, and the phase difference between the first feeding point 202 and the second feeding point 203 is not limited in the present invention as long as the first feeding point 202 and the second feeding point are A differential mode circuit can be formed between points 203, which is within the scope of the present invention.
进一步的， 在具体实施过程中， 所述第二馈电点 203 的个数最好为 1 至 2个， 因为如果天线上的馈电点过多， 将会导致天线功率的损耗较大， 当然， 在本发明中， 对第二馈电点 203 的数量不作限制， 只要本领域技术 人员所采用的第二馈电点 203能够达到和第一馈电点 202产生差模电路的 效果， 都属于本发明的范围内。  Further, in the specific implementation process, the number of the second feeding points 203 is preferably 1 to 2, because if the feeding point on the antenna is too much, the antenna power loss is large, of course. In the present invention, the number of the second feeding points 203 is not limited as long as the second feeding point 203 employed by those skilled in the art can achieve the effect of generating a differential mode circuit with the first feeding point 202. Within the scope of the invention.
请参考图 3 , 本发明实施例三提供一种支架天线， 主要包括如下结构： 天线主体 301 ;  Referring to FIG. 3, a third embodiment of the present invention provides a bracket antenna, which mainly includes the following structure: an antenna body 301;
第一馈电点 302 , 连接于所述天线主体 301 ;  a first feeding point 302 is connected to the antenna body 301;
第二馈电点 303 , 连接于所述天线主体 301 ;  a second feeding point 303 is connected to the antenna body 301;
第一耦合电路 304,连接于所述第一馈电点 302 ,所述第一耦合电路 304 用于将经过所述第一耦合电路 304的第一电流提供给所述第一馈电点 302; 第二耦合电路 305 ,连接于所述第二馈电点 303 ,所述第二耦合电路 305 用于将经过所述第二耦合电路 305的第二电流提供给所述第二馈电点 303 , 其中， 所述第一电流和所述第二电流的方向相反； a first coupling circuit 304 connected to the first feeding point 302, the first coupling circuit 304 For supplying a first current through the first coupling circuit 304 to the first feeding point 302; a second coupling circuit 305 connected to the second feeding point 303, the second coupling circuit 305 Providing a second current through the second coupling circuit 305 to the second feeding point 303, wherein the first current and the second current are opposite in direction;
集成耦合器 306, 连接于所述第一耦合电路 304和所述第二耦合电路 305 , 所述集成耦合器 306用于给所述第一耦合电路 304提供第一电流， 给 所述第二耦合电路 305提供第二电流。  An integrated coupler 306 is coupled to the first coupling circuit 304 and the second coupling circuit 305, the integrated coupler 306 is configured to provide a first current to the first coupling circuit 304, to the second coupling Circuit 305 provides a second current.
在具体实施过程中， 可以通过调整集成耦合器的耦合度的大小进而调 整第一耦合电路 304和第二耦合电路 305 ,从而调整天线的收发性能， 进而 达到 SAR值的目的。  In a specific implementation process, the first coupling circuit 304 and the second coupling circuit 305 can be adjusted by adjusting the coupling degree of the integrated coupler, thereby adjusting the transmitting and receiving performance of the antenna, thereby achieving the SAR value.
进一步的， 在具体实施过程中， 所述第一馈电点 302和所述第二馈电 点 303之间的相位差如果为 180度， 能够达到最好的差模电路效果。 当然， 180度仅仅为一个优选实施例，在本发明中对于第一馈电点 302和第二馈电 点 303之间的相位差并不作限制， 只要第一馈电点 302和第二馈电点 303 之间能形成差模电路， 都属于本发明的范围。  Further, in a specific implementation process, if the phase difference between the first feed point 302 and the second feed point 303 is 180 degrees, the best differential mode circuit effect can be achieved. Of course, 180 degrees is only a preferred embodiment, and the phase difference between the first feeding point 302 and the second feeding point 303 is not limited in the present invention as long as the first feeding point 302 and the second feeding point are A differential mode circuit can be formed between points 303, and is within the scope of the present invention.
进一步的， 在具体实施过程中， 所述第二馈电点 303 的个数最好为 1 至 2个， 因为如果天线上的馈电点过多， 将会导致天线功率的损耗较大， 当然， 在本发明中， 对第二馈电点 303 的数量不作限制， 只要本领域技术 人员所采用的第二馈电点 303能够达到和第一馈电点 302产生差模电路的 效果， 都属于本发明的范围内。  Further, in the specific implementation process, the number of the second feeding points 303 is preferably 1 to 2, because if there are too many feeding points on the antenna, the power loss of the antenna will be large, of course. In the present invention, the number of the second feeding points 303 is not limited as long as the second feeding point 303 employed by those skilled in the art can achieve the effect of generating a differential mode circuit with the first feeding point 302. Within the scope of the invention.
请参考图 4, 本发明实施例四提供一种终端， 主要包括如下结构： Referring to FIG. 4, a fourth embodiment of the present invention provides a terminal, which mainly includes the following structures:
PCB板 401 ; PCB board 401 ;
天线， 所述天线设置于所述 PCB板上面， 其中所述天线具体包括： 天线主体 402;  An antenna, the antenna is disposed on the PCB, wherein the antenna specifically includes: an antenna body 402;
第一馈电点 403 , 连接于所述天线主体 402; 第二馈电点 404, 连接于所述天线主体 402; a first feeding point 403, connected to the antenna body 402; a second feed point 404, connected to the antenna body 402;
第一耦合电路 405 ,连接于所述第一馈电点 403 ,所述第一耦合电路 405 用于将经过所述第一耦合电路 405的第一电流提供给所述第一馈电 403 ; 第二耦合电路 406,连接于所述第二馈电点 404,所述第二耦合电路 406 用于将经过所述第二耦合电路 404的第二电流提供给所述第二馈电点 404, 其中， 所述第一电流和所述第二电流的方向相反。  a first coupling circuit 405 connected to the first feeding point 403, the first coupling circuit 405 is configured to provide a first current through the first coupling circuit 405 to the first feeding 403; a second coupling circuit 406 coupled to the second feed point 404, the second coupling circuit 406 for providing a second current through the second coupling circuit 404 to the second feed point 404, wherein The first current and the second current are opposite in direction.
进一步的， 该天线还包括如下结构：  Further, the antenna further includes the following structure:
集成耦合器 407, 连接于所述第一耦合电路和所述第二耦合电路， 所述 集成耦合器用于给所述第一耦合电路提供第一电流， 给所述第二耦合电路 提供第二电流。  An integrated coupler 407 coupled to the first coupling circuit and the second coupling circuit, the integrated coupler for supplying a first current to the first coupling circuit and a second current to the second coupling circuit .
进一步的， 所述第一馈电点 403和所述第二馈电点 404具有 180度相 位差。  Further, the first feed point 403 and the second feed point 404 have a phase difference of 180 degrees.
进一步的， 所述第二馈电点 404为 1到 2个。 本发明实施一、 二、 三中所描述的天线。 由于基于本发明实施例一、 二、 三中所描述的天线， 本发明所属领域技术人员能够得知本发明实施例四中 的终端的具体结构和变化形式， 故而只要本发明所属技术人员基于本发明 实施例一、 二、 三中的天线所制造的终端， 都属于本发明的范围内。  Further, the second feeding point 404 is 1 to 2. The antenna described in Embodiments 1, 2, and 3 of the present invention. The specific structure and variation of the terminal in the fourth embodiment of the present invention can be known to those skilled in the art based on the antennas described in Embodiments 1, 2, and 3 of the present invention. The terminals manufactured by the antennas of the first, second and third embodiments of the invention are all within the scope of the invention.
请参考图 5 , 本发明实施例五提供一种数据卡， 主要包括如下结构： Referring to FIG. 5, a fifth embodiment of the present invention provides a data card, which mainly includes the following structure:
PCB板 501 ; PCB board 501 ;
微带天线， 所述微带天线设置于所述 PCB板 501上面， 其中所述天线 具体包括：  The microstrip antenna is disposed on the PCB board 501, wherein the antenna specifically includes:
天线主体 502;  Antenna body 502;
第一馈电点 503 , 连接于所述天线主体 502;  a first feeding point 503, connected to the antenna body 502;
第二馈电点 504, 连接于所述天线主体 502; 第一耦合电路 505 ,连接于所述第一馈电点 503 ,所述第一耦合电路 505 用于将经过所述第一耦合电路 505的第一电流提供给所述第一馈电点 503 ; 第二耦合电路 506,连接于所述第二馈电点 504,所述第二耦合电路 506 用于将经过所述第二耦合电路 506的第二电流提供给所述第二馈电点 504, 其中， 所述第一电流和所述第二电流的方向相反。 a second feeding point 504, connected to the antenna body 502; a first coupling circuit 505 is coupled to the first feed point 503, the first coupling circuit 505 is configured to provide a first current through the first coupling circuit 505 to the first feed point 503; a second coupling circuit 506 is coupled to the second feed point 504, and the second coupling circuit 506 is configured to provide a second current through the second coupling circuit 506 to the second feed point 504. Wherein the first current and the second current are opposite in direction.
进一步的， 所述第一馈电点 503通过所述第一耦合电路 505连接于所 述天线主体 502。  Further, the first feeding point 503 is connected to the antenna body 502 through the first coupling circuit 505.
进一步的， 所述第一馈电点 503和所述第二馈电点 504具有 180度相 位差。  Further, the first feed point 503 and the second feed point 504 have a phase difference of 180 degrees.
进一步的， 所述第二馈电点 504为 1到 2个。  Further, the second feeding point 504 is 1 to 2.
当然， 在具体实施过程中， 本发明中的终端不限于数据卡， 也可以是 手机、 电话、 电脑等， 只要所采用的天线为本发明实施例中的天线， 都属 于本发明范围。  Of course, in the specific implementation process, the terminal in the present invention is not limited to a data card, and may be a mobile phone, a telephone, a computer, etc., as long as the antenna used is an antenna in the embodiment of the present invention, and belongs to the scope of the present invention.
在具体实施过程中， 本发明实施例五中的数据卡中所使用的天线对应 于本发明实施一、 二、 三中所描述的天线。 由于基于本发明实施例一、 二、 三中所描述的天线， 本发明所属领域技术人员能够得知本发明实施例五中 的终端的具体结构和变化形式， 故而只要本发明所属技术人员基于本发明 实施例一、 二、 三中的天线所制造的终端， 都属于本发明的范围内。  In an embodiment, the antenna used in the data card in Embodiment 5 of the present invention corresponds to the antenna described in Embodiments 1, 2, and 3 of the present invention. The specific structure and variation of the terminal in the fifth embodiment of the present invention can be known to those skilled in the art based on the antennas described in Embodiments 1, 2, and 3 of the present invention. The terminals manufactured by the antennas of the first, second and third embodiments of the invention are all within the scope of the invention.
本发明提供的一个或多个技术方案， 至少具有如下技术效果或优点： One or more technical solutions provided by the present invention have at least the following technical effects or advantages:
( 1 ) 由于采用了基于在天线上增加馈电点， 并通过天线的耦合电路给 新增加的馈电点反向馈电， 从而生成一差模电路的技术方案， 故而达到了 消除共模信号的干扰、 从而降低 SAR值的技术效果； (1) A technique for generating a differential mode circuit is achieved by adding a feed point on the antenna and feeding back the newly added feed point through the coupling circuit of the antenna, thereby eliminating the common mode signal. The interference, thereby reducing the technical effect of the SAR value;
( 2 ) 由于采用了基于在天线上增加馈电点， 并通过天线的耦合电路给 新增加的馈电点反向馈电， 从而生成一差模电路的技术方案， 故而达到了 在降低 SAR值的同时并不会降低天线整体性能也就是 TRP值的技术效果。 尽管已描述了本发明的优选实施例， 但本领域内的技术人员一旦得知 了基本创造性概念， 则可对这些实施例作出另外的变更和修改。 所以， 所 附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和 修改。 (2) The technique of generating a differential mode circuit is achieved by adding a feeding point on the antenna and feeding back the newly added feeding point through the coupling circuit of the antenna, thereby achieving a reduction in the SAR value. At the same time, it does not reduce the overall performance of the antenna, that is, the technical effect of the TRP value. Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the art that, Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and
显然， 本领域的技术人员可以对本发明进行各种改动和变型而不脱离 本发明的精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权 利要求及其等同技术的范围之内， 则本发明也意图包含这些改动和变型在 内。  It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

权利要求书 Claim
1、 一种天线， 其特征在于， 包括：  An antenna characterized by comprising:
天线主体；  Antenna body;
第一馈电点， 连接于所述天线主体；  a first feeding point connected to the antenna body;
第二馈电点， 连接于所述天线主体；  a second feed point connected to the antenna body;
第一耦合电路， 连接于所述第一馈电点， 所述第一耦合电路用于将 经过所述第一耦合电路的第一电流提供给所述第一馈电点；  a first coupling circuit connected to the first feed point, the first coupling circuit for supplying a first current through the first coupling circuit to the first feed point;
第二耦合电路， 连接于所述第二馈电点， 所述第二耦合电路用于将 经过所述第二耦合电路的第二电流提供给所述第二馈电点， 其中， 所述 第一电流和所述第二电流的方向相反。  a second coupling circuit connected to the second feed point, wherein the second coupling circuit is configured to provide a second current through the second coupling circuit to the second feed point, wherein the A current is opposite to the direction of the second current.
2、 如权利要求 1所述的天线， 其特征在于， 所述天线还包括： 集成耦合器， 连接于所述第一耦合电路和所述第二耦合电路， 所述 集成耦合器用于给所述第一耦合电路提供第一电流， 给所述第二耦合电 路提供第二电流。  2. The antenna according to claim 1, wherein the antenna further comprises: an integrated coupler coupled to the first coupling circuit and the second coupling circuit, the integrated coupler for The first coupling circuit provides a first current and the second coupling circuit provides a second current.
3、 如权利要求 1所述的天线， 其特征在于， 所述第一馈电点通过所 述第一耦合电路连接于所述天线主体。  The antenna according to claim 1, wherein the first feed point is connected to the antenna body through the first coupling circuit.
4、 如权利要求 1所述的天线， 其特征在于， 所述第一馈电点和所述 第二馈电点具有 180度相位差。  The antenna according to claim 1, wherein the first feed point and the second feed point have a phase difference of 180 degrees.
5、 如权利要求 1所述的天线， 其特征在于， 所述第二馈电点为 1到 2个。  The antenna according to claim 1, wherein the second feeding point is 1 to 2.
6、 一种终端， 其特征在于， 包括：  6. A terminal, comprising:
PCB板；  PCB board
天线， 所述天线设置于所述 PCB板上面， 其中所述天线具体包括： 天线主体；  An antenna, the antenna is disposed on the PCB, wherein the antenna specifically includes: an antenna body;
第一馈电点， 连接于所述天线主体； 第二馈电点， 连接于所述天线主体； a first feeding point connected to the antenna body; a second feed point connected to the antenna body;
第一耦合电路， 连接于所述第一馈电点， 所述第一耦合电路用于将 经过所述第一耦合电路的第一电流提供给所述第一馈电点；  a first coupling circuit connected to the first feed point, the first coupling circuit for supplying a first current through the first coupling circuit to the first feed point;
第二耦合电路， 连接于所述第二馈电点， 所述第二耦合电路用于将 经过所述第二耦合电路的第二电流提供给所述第二馈电点， 其中， 所述 第一电流和所述第二电流的方向相反。  a second coupling circuit connected to the second feed point, wherein the second coupling circuit is configured to provide a second current through the second coupling circuit to the second feed point, wherein the A current is opposite to the direction of the second current.
7、 如权利要求 6所述的终端， 其特征在于， 所述天线还包括： 集成耦合器， 连接于所述第一耦合电路和所述第二耦合电路， 所述 集成耦合器用于给所述第一耦合电路提供第一电流， 给所述第二耦合电 路提供第二电流。  The terminal according to claim 6, wherein the antenna further comprises: an integrated coupler connected to the first coupling circuit and the second coupling circuit, wherein the integrated coupler is configured to The first coupling circuit provides a first current and the second coupling circuit provides a second current.
8、 如权利要求 6所述的终端， 其特征在于， 所述第一馈电点通过所 述第一耦合电路连接于所述天线主体。  The terminal according to claim 6, wherein the first feeding point is connected to the antenna body through the first coupling circuit.
9、 如权利要求 6所述的终端， 其特征在于， 所述第一馈电点和所述 第二馈电点具有 180度相位差。  9. The terminal of claim 6, wherein the first feed point and the second feed point have a phase difference of 180 degrees.
10、 如权利要求 6所述的终端， 其特征在于， 所述第二馈电点为 1 到 2个。  The terminal according to claim 6, wherein the second feeding point is 1 to 2.
PCT/CN2012/072050 2011-11-28 2012-03-07 Antenna and terminal WO2013078793A1 (en)

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CN110071361A (en) * 2018-01-23 2019-07-30 中兴通讯股份有限公司 Antenna and terminal
CN113745832B (en) * 2020-05-29 2023-04-07 华为技术有限公司 Antenna and electronic device
CN114824749B (en) * 2021-01-22 2023-07-18 华为技术有限公司 Electronic equipment
CN112968285A (en) * 2021-02-02 2021-06-15 维沃移动通信有限公司 Electronic device

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Publication number Priority date Publication date Assignee Title
CN101385202A (en) * 2005-12-14 2009-03-11 堪萨斯州立大学 Microstrip antenna for rfid device
US20110254747A1 (en) * 2010-03-18 2011-10-20 Motti Haridim System for radiating radio frequency signals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101385202A (en) * 2005-12-14 2009-03-11 堪萨斯州立大学 Microstrip antenna for rfid device
US20110254747A1 (en) * 2010-03-18 2011-10-20 Motti Haridim System for radiating radio frequency signals

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