WO2020057136A1 - 天线及移动终端 - Google Patents

天线及移动终端 Download PDF

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Publication number
WO2020057136A1
WO2020057136A1 PCT/CN2019/085296 CN2019085296W WO2020057136A1 WO 2020057136 A1 WO2020057136 A1 WO 2020057136A1 CN 2019085296 W CN2019085296 W CN 2019085296W WO 2020057136 A1 WO2020057136 A1 WO 2020057136A1
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WIPO (PCT)
Prior art keywords
radiator
antenna
end portion
matching
feeding point
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PCT/CN2019/085296
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English (en)
French (fr)
Inventor
高童童
盖伊
阮勇
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深圳市泰衡诺科技有限公司
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Publication of WO2020057136A1 publication Critical patent/WO2020057136A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • 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
    • H01Q5/10—Resonant antennas
    • 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
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
    • 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
    • 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
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
    • 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
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to an antenna and a mobile terminal.
  • antennas have been widely used.
  • the area reserved for antennas in mobile terminal products is becoming more and more limited, and the environment for setting antennas is becoming increasingly unfavorable to signals.
  • Send and receive Therefore, how to provide a high-performance antenna solution in a limited space is increasingly important.
  • the three-in-one or four-in-one antennas belong to the traditional inverted-F antenna, inverted-L antenna, monopole antenna, or loop antenna. Due to the limitation of the internal space and environment of the mobile terminal, the efficiency improvement of the three-in-one antenna or the four-in-one antenna is very limited, and it is difficult to receive signals in some areas with complex structures, such as those with large scattering and / or diffraction in large cities GPS signals are relatively weak, and it is difficult for these traditional antennas to receive satellite navigation signals, making the use of mobile terminals less than ideal.
  • the invention provides an antenna and a mobile terminal, which are used to solve the problem of poor performance of the existing antennas, so as to improve the user experience.
  • the present invention provides an antenna for a mobile terminal having a metal frame, including a dielectric substrate, an antenna radiator, and a feeding point; wherein:
  • the dielectric substrate includes a first surface and a second surface opposite to each other;
  • the antenna radiator includes a first radiator provided on the first surface and a second radiator provided on the second surface.
  • a projection of the first radiator on the second surface is similar to that of the first radiator.
  • the two radiators overlap at least partially;
  • the first radiator is electrically connected to the feeding point
  • the second radiator is electrically connected to the metal frame.
  • the first radiator includes a first end portion and a second end portion opposite to the first end portion, the first end portion is electrically connected to the feeding point, and the second end portion The projection on the second surface partially overlaps the second radiator.
  • the second radiator includes a third end portion and a fourth end portion opposite to the third end portion; a projection of the second end portion on the second surface and the fourth end portion Partially overlapping, the third end portion is electrically connected to the metal frame.
  • the width of the second end portion is larger than the width of the first end portion, and the width of the fourth end portion is larger than the width of the third end portion.
  • the antenna radiator further includes a third radiator provided on the first surface; the third radiator is electrically connected to the feeding point, and is used to form a resonance in a WIFI 5G operating frequency band.
  • an impedance matching network is further included; the impedance matching network is connected to the first end of the first radiator, the third radiator, and the feeding point at the same time, and is used to connect the The feed signal is transmitted to the first radiator and the third radiator after being adjusted.
  • the impedance matching network includes a first matching inductor, a second matching inductor, a third matching inductor, and a matching capacitor;
  • One end of the first matching inductor is connected to the first end portion of the first radiator, and the other end is connected to one end of the matching capacitor;
  • the other end of the matching capacitor is simultaneously connected to one end of the second matching inductor and one end of the third matching inductor;
  • the other end of the second matching inductor is connected to the feeding point
  • the other end of the third matching inductor is connected to the third radiator.
  • it further includes a ground plate; the second radiator is connected to the ground plate through the metal frame.
  • the dielectric substrate includes a PCB motherboard.
  • the present invention further provides a mobile terminal, including the antenna according to any one of the foregoing.
  • the antenna and the mobile terminal provided by the present invention are provided with a first radiator on a first surface of a dielectric substrate, a second radiator on a second surface opposite to the first surface, and the second radiator and the mobile terminal
  • the metal frame is coupled, so that the first radiator, the second radiator, and the metal frame together form the antenna radiator of the mobile terminal, which significantly improves the radiation capability of the GPS antenna, even in harsh environments.
  • the antenna can still achieve excellent communication performance, reduce the GPS antenna positioning abnormality, positioning accuracy and positioning errors and other problems, improve the antenna performance, and improve the user experience.
  • FIG. 1 is a schematic diagram of the overall structure of an antenna in a specific embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an antenna structure after removing the first radiator in a specific embodiment of the present invention
  • FIG. 3 is a schematic diagram of an antenna according to a specific embodiment of the present invention.
  • FIG. 4A is a GPS and WIFI 2.4G resonance curve of the antenna described in a specific embodiment of the present invention.
  • FIG. 4B is a WIFI 5G resonance curve of the antenna described in a specific embodiment of the present invention.
  • 5A-5C are directional diagrams of different perspectives of the GPS of the antenna according to the embodiment of the present invention.
  • 6A-6C are directional diagrams of WIFI 2.4G different viewing angles of the antenna according to a specific embodiment of the present invention.
  • 7A-7C are directional views of WIFI and 5G different perspectives of the antenna according to the specific embodiment of the present invention.
  • FIG. 1 is a schematic diagram of the overall structure of the antenna in the specific embodiment of the invention
  • FIG. 2 is a schematic diagram of the antenna structure after the first radiator is removed in the specific embodiment of the invention.
  • the antenna provided in this embodiment is used for a mobile terminal having a metal frame 10 and includes a dielectric substrate 11, an antenna radiator, and a feeding point 16; wherein: the dielectric substrate 11 includes A first surface and a second surface; the antenna radiator includes a first radiator 13 disposed on the first surface and a second radiator 14 disposed on the second surface (as shown in FIGS. 1 and 2).
  • the second radiator 14 is not visible in the viewing angle shown, so it is indicated by a dotted line), the projection of the first radiator 13 on the second surface and the second radiator 14 at least partially overlap;
  • a radiator 13 is electrically connected to the feeding point 16; the second radiator 14 is electrically connected to the metal frame 10.
  • the dielectric substrate 11 is preferably a FR4 dielectric plate.
  • the dielectric substrate 11 is located in a region surrounded by the metal frame 10.
  • the antenna is preferably located in an upper half of the mobile terminal.
  • the dielectric substrate 11 feeds the first radiator 13 through the feeding point 16, so that the first radiator 13 is mainly used to form resonance in a WIFI 2.4G operating frequency band.
  • the projection of the first radiator 13 on the second surface at least partially overlaps with the second radiator 14 so that the second radiator 14 and the first radiator 13 can generate a non-contact electromagnetic coupling feed. Electricity makes the second radiator 14 mainly used to form resonance in the GPS operating frequency band.
  • the second radiator 14 is electrically connected to the metal frame 10 to realize the coupling between the second radiator 14 and the metal frame 10 so that the metal frame 10 also serves as a part of the antenna radiator.
  • the radiation capability of the GPS signal in the upper half of the mobile terminal is significantly improved, and even in a harsh environment, the antenna can still achieve excellent communication performance, reducing GPS antenna positioning abnormality, positioning accuracy, and positioning errors. Problems, improving the performance of the antenna and improving the user experience.
  • FIG. 3 is a schematic diagram of an antenna according to a specific embodiment of the present invention.
  • the first radiator 13 includes a first end portion 31 and a second end portion 32 opposite to the first end portion 31, and the first end portion 31 is electrically connected to the feeding point 16, The projection of the second end portion 32 on the second surface partially overlaps the second radiator 14.
  • the specific shape of the first radiator 13 is described in this specific embodiment by taking the shape of the first radiator 13 as a polygon. Those skilled in the art can select according to actual needs, and only Just make sure it can form the resonance of WIFI 2.4G working frequency band.
  • the second radiator 14 includes a third end portion 21 and a fourth end portion 22 opposite to the third end portion 21; a projection of the second end portion 32 on the second surface and The fourth end portion 22 partially overlaps, and the third end portion 21 is electrically connected to the metal frame 10.
  • the specific shape of the second radiator 14 can be selected by those skilled in the art according to actual needs, and it only needs to ensure that it can form a resonance in the WIFI 5G working frequency band.
  • the width of the second end portion 32 is larger than the first end portion 31.
  • the width 22 of the fourth end portion is greater than the width of the third end portion 31. That is, by increasing the overlapping area between the first end portion 32 and the second end portion 31, the electromagnetic coupling effect between the two is improved.
  • the antenna radiator further includes a third radiator 15 disposed on the first surface; the third radiator 15 is electrically connected to the feeding point 16 and is used to form a resonance in a 5G working frequency band. .
  • the third radiator 15 receives a feeding signal from the feeding point 16 and forms a resonance of the WIFI 5G operating frequency band with a higher-order mode of the overall structure of the antenna, thereby integrating in a limited space.
  • GPS antenna, BT antenna, WIFI 2.4G antenna and WIFI 5G antenna have greatly improved space utilization.
  • the specific implementation manner is described by taking the shape of the third radiator 15 as an L-shaped example, and a person skilled in the art may also select a suitable first radiator according to actual needs. The shape of the three radiators only needs to ensure that it can form resonance in the WIFI 5G working frequency band.
  • the materials of the first radiator 13, the second radiator 14, and the third radiator 15 may all be copper, gold, or silver. In order to reduce the production cost of the antenna, preferably, the materials of the first radiator 13, the second radiator 14, and the third radiator 15 are copper.
  • the antenna further includes an impedance matching network 17; the impedance matching network 17 is connected to the first end portion 31, the third radiator 15 and the feeding point 16 of the first radiator 13 at the same time, And used for adjusting the feeding signal of the feeding point 16 to the first radiator 13 and the third radiator 15.
  • the impedance matching network 17 is used for debugging and matching the performance of the first radiator 13, the second radiator 14, and the third radiator 15. Specifically, the RF output terminal on the dielectric substrate 11 is transmitted to the first radiator 13, the second radiator 14 and the first radiator through the feeding point 16 and the impedance matching network 17 in this order. Three radiators 15.
  • the impedance matching network 16 includes a first matching inductor L1, a second matching inductor L2, a third matching inductor L3, and a matching capacitor C; one end of the first matching inductor L1 is connected to the first radiator 13 The first end 31 and the other end are connected to one end of the matching capacitor C; the other end of the matching capacitor C is simultaneously connected to one end of the second matching inductor L2 and one end of the third matching inductor L3; The other end of the second matching inductor L2 is connected to the feeding point 16; the other end of the third matching inductor L3 is connected to the third radiator 15.
  • P is a signal source in the dielectric substrate 11 for transmitting a radio frequency signal to the antenna.
  • the first inductor L1, the second inductor L2, and the third inductor L3 in the impedance matching network 16 are used to adjust the first radiator 13, the second radiator 14, and the third inductor L3.
  • the inductive reactance portion of the three radiators 15, and the matching capacitor C is used to adjust the capacitive reactance portions of the radiator 13, the second radiator 14, and the third radiator 15 to increase the bandwidth of the antenna To further improve the performance of the antenna.
  • the signal source P transmits a feeding signal to the impedance matching network 16 through the feeding point 16 through a radio frequency output terminal, and then is adjusted to an LC device in the impedance matching network 16 and then transmitted to the first A radiator 13, the second radiator 14 and the third radiator 15.
  • the first inductor L1 is mainly used to adjust the performance parameters of WIFI and 2.4G in the antenna
  • the matching capacitor C is mainly used to adjust the performance parameters of GPS and WIFI in the antenna.
  • the second inductor L2 is mainly used to adjust the performance parameters of WIFI 2.4G and WIFI 5G in the antenna
  • the third inductor L3 is mainly used to adjust the performance parameters of WIFI 5G in the antenna.
  • the first inductor L1, the second inductor L2, and the third inductor L3 may all be adjustable inductors, and the matching capacitor C may be an adjustable capacitor.
  • performance parameters such as the operating frequency band, bandwidth, and gain of the antenna can be adjusted.
  • the antenna further includes a ground plate 12; the second radiator 14 is connected to the ground plate 12 through the metal frame 10.
  • the first radiator 13, the second radiator 14 and the third radiator 15 are distributed in a clearance area on two opposite surfaces of the dielectric substrate 11, and the ground plate 12 is distributed in the clearance area.
  • the dielectric substrate 11 is removed from a region other than the headroom.
  • the second radiator 14 is connected to the ground plate 12 through the metal frame 10, so that the antenna can form a closed loop after feeding an electrical signal.
  • the dielectric substrate 11 includes a PCB motherboard.
  • Figure 4A is a GPS and WIFI 2.4G resonance curve of the antenna according to a specific embodiment of the present invention.
  • Figure 4B is a WIFI 5G resonance curve of the antenna according to a specific embodiment of the present invention.
  • Figures 5A-5C are specific examples of the present invention.
  • Figures 6A-6C are directional diagrams of WIFI 2.4G antennas with different viewing angles in the specific embodiment of the invention.
  • Figures 7A-7C are specific embodiments of the invention.
  • the WIFI 5G antenna pattern described in different perspectives. As can be seen from FIG. 4A to FIG. 4B, FIG. 5A to FIG. 5C, FIG. 6A to FIG. 6C, FIG. 7A to FIG.
  • the GPS, WIFI, 2.4G, and WIFI 5G gains in the antenna provided by this specific embodiment are 3.7dB, respectively. , 5.7dB, 6.3dB.
  • the antenna provided by this embodiment overcomes the limitation of the antenna performance on the environmental factors, and significantly improves the radiation ability of the GPS signal in the upper half of the space, while maintaining the The omnidirectional radiation characteristics of WIFI 2.4G and WIFI 5G can significantly reduce problems such as GPS positioning anomalies, degradation of positioning accuracy, and positioning errors, and achieve a good user experience.
  • this embodiment also provides a mobile terminal, including the antenna described in any one of the above.
  • the mobile terminal in this embodiment may be, but is not limited to, a mobile phone, a notebook computer, and a tablet computer.
  • the antenna and the mobile terminal provided by this specific embodiment are provided with a first radiator on a first surface of a dielectric substrate, a second radiator on a second surface opposite to the first surface, and the second radiator and the mobile
  • the metal frame of the terminal is coupled, so that the first radiator, the second radiator, and the metal frame together constitute the antenna radiator of the mobile terminal, which significantly improves the radiation capability of the GPS antenna, even in the harsh In the environment, the antenna can still achieve excellent communication performance, reduce the GPS antenna positioning abnormality, positioning accuracy and positioning errors, etc., improve the antenna performance, and improve the user experience.

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  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

本发明涉及通信技术领域，尤其涉及一种天线及移动终端。所述天线用于具有金属边框的移动终端，包括介质基板、天线辐射体和馈电点；其中：所述介质基板包括相对的第一表面和第二表面；所述天线辐射体包括设置于所述第一表面的第一辐射体以及设置于所述第二表面的第二辐射体，所述第一辐射体在所述第二表面的投影与所述第二辐射体至少部分重叠；所述第一辐射体与所述馈电点电连接；所述第二辐射体与所述金属边框电连接。本发明显著提高了GPS天线的辐射能力，减少了GPS天线定位失常、定位精度下降以及定位错误等问题，改善了天线的性能，提高了用户的使用体验。

Description

天线及移动终端 技术领域
本发明涉及通信技术领域，尤其涉及一种天线及移动终端。
背景技术
随着无线通信技术和物联网技术的发展，天线得到了广泛的应用。为了响应移动终端产品的尺寸朝向小型化、轻薄化以及功能朝向丰富化的发展趋势，移动终端产品中预留给天线的区域越来越有限，用于设置天线的环境也越来越不利于信号的收发。因此，如何在有限的空间内提供性能良好的天线解决方案越来越重要。
目前，对于市面上大部分具有GPS天线、BT天线以及WIFI天线的移动终端，都是采用同一个结构来覆盖GPS、BT以及WIFI的所有频段，即通过三合一或者四合一的方式来提高移动终端的空间利用率。在平衡天线性能与天线布线空间的同时，还要考虑环境因素。这是因为，置于移动终端内的天线附近通常设置有大量的器件结构，特别是一些金属结构，这些器件结构会影响天线的接收和发射，导致天线性能的下降，影响移动终端的使用效果。因此，在天线布线空间位置与天线布线空间环境的限制下，实现更高的辐射效率以及更优的辐射分布，一直都是天线调试努力的方向。
目前，绝大部分的三合一或者四合一天线都是属于传统的倒F型天线、倒L型天线、单极子天线或者环形天线。由于移动终端内部空间和环境的限制，三合一天线或者四合一天线的效率提升非常有限，在一些结构复杂地区很难接收到信号，例如像大城市这些散射和/或衍射比较丰富的地区，GPS的信号比较弱，这些传统类型的天线就很难接收到卫星导航信号，使得移动终端的使用效果不够理想。
因此，如何提升天线的性能，改善用户的使用体验，是目前亟待解决的技术问题。
发明内容
本发明提供一种天线及移动终端，用于解决现有的天线性能较差的问题，以提升用户的使用体验。
为了解决上述问题，本发明提供了一种天线，用于具有金属边框的移动终 端，包括介质基板、天线辐射体和馈电点；其中：
所述介质基板包括相对的第一表面和第二表面；
所述天线辐射体包括设置于所述第一表面的第一辐射体以及设置于所述第二表面的第二辐射体，所述第一辐射体在所述第二表面的投影与所述第二辐射体至少部分重叠；
所述第一辐射体与所述馈电点电连接；
所述第二辐射体与所述金属边框电连接。
优选的，所述第一辐射体包括第一端部以及与所述第一端部相对的第二端部，所述第一端部与所述馈电点电连接，所述第二端部在所述第二表面的投影与所述第二辐射体部分重叠。
优选的，所述第二辐射体包括第三端部以及与所述第三端部相对的第四端部；所述第二端部在所述第二表面的投影与所述第四端部部分重叠，所述第三端部与所述金属边框电连接。
优选的，所述第二端部的宽度大于所述第一端部，所述第四端部的宽度大于所述第三端部。
优选的，所述天线辐射体还包括设置于所述第一表面的第三辐射体；所述第三辐射体与所述馈电点电连接，用于形成WIFI 5G工作频段的谐振。
优选的，还包括阻抗匹配网络；所述阻抗匹配网络同时连接所述第一辐射体的所述第一端部、第三辐射体和所述馈电点，用于将所述馈电点的馈电信号调节后传输至所述第一辐射体和所述第三辐射体。
优选的，所述阻抗匹配网络包括第一匹配电感、第二匹配电感、第三匹配电感和匹配电容；
所述第一匹配电感的一端连接所述第一辐射体的所述第一端部、另一端连接所述匹配电容的一端；
所述匹配电容的另一端同时连接所述第二匹配电感的一端和所述第三匹配电感的一端；
所述第二匹配电感的另一端连接所述馈电点；
所述第三匹配电感的另一端连接所述第三辐射体。
优选的，还包括接地板；所述第二辐射体通过所述金属边框与所述接地板 连接。
优选的，所述介质基板包括PCB主板。
为了解决上述问题，本发明还提供了一种移动终端，包括上述任一项所述的天线。
本发明提供的天线及移动终端，通过在介质基板的第一表面设置第一辐射体、在与所述第一表面相对的第二表面设置第二辐射体，且第二辐射体与移动终端的金属边框耦合，从而使得由所述第一辐射体、所述第二辐射体与所述金属边框共同构成移动终端的天线辐射体，显著提高了GPS天线的辐射能力，既使处于恶劣的环境中，天线依然能够实现优异的通信性能，减少了GPS天线定位失常、定位精度下降以及定位错误等问题，改善了天线的性能，提高了用户的使用体验。
附图说明
附图1是本发明具体实施方式中天线的整体结构示意图；
附图2是本发明具体实施方式中去除所述第一辐射体后的天线结构示意图；
附图3是本发明具体实施方式中所述天线的原理示意图；
附图4A是本发明具体实施方式中所述天线的GPS与WIFI 2.4G谐振曲线；
附图4B是本发明具体实施方式中所述天线的WIFI 5G谐振曲线；
附图5A-5C是本发明具体实施方式中所述天线的GPS不同视角的方向图；
附图6A-6C是本发明具体实施方式中所述天线的WIFI 2.4G不同视角的方向图；
附图7A-7C是本发明具体实施方式中所述天线的WIFI 5G不同视角的方向图。
具体实施方式
下面结合附图对本发明提供的天线及移动终端的具体实施方式做详细说明。
本具体实施方式提供了一种天线，附图1是本发明具体实施方式中天线的整体结构示意图，附图2是本发明具体实施方式中去除所述第一辐射体后的天线结构示意图。
如图1、图2所示，本具体实施方式提供的天线，用于具有金属边框10的移动终端，包括介质基板11、天线辐射体和馈电点16；其中：所述介质基板11包括相对的第一表面和第二表面；所述天线辐射体包括设置于所述第一表面的第一辐射体13以及设置于所述第二表面的第二辐射体14(在图1、图2所示的视角下所述第二辐射体14不可见，故以虚线表示)，所述第一辐射体13在所述第二表面的投影与所述第二辐射体14至少部分重叠；所述第一辐射体13与所述馈电点16电连接；所述第二辐射体14与所述金属边框10电连接。
其中，所述介质基板11优选为FR4介质板。所述介质基板11位于所述金属边框10围绕而成的区域内。
所述天线优选位于所述移动终端的上半部分。具体来说，所述介质基板11通过所述馈电点16给所述第一辐射体13进行馈电，使得所述第一辐射体13主要用于形成WIFI 2.4G工作频段的谐振。所述第一辐射体13在所述第二表面的投影与所述第二辐射体14至少部分重叠，实现所述第二辐射体14与所述第一辐射体13产生非接触式电磁耦合馈电，使得所述第二辐射体14主要用于形成GPS工作频段的谐振。同时，所述第二辐射体14与所述金属边框10电连接，实现所述第二辐射体14与所述金属边框10的耦合，使得所述金属边框10也作为所述天线辐射体的一部分，从而显著提高了GPS信号在所述移动终端上半空间的辐射能力，既使处于恶劣的环境中，天线依然能够实现优异的通信性能，减少了GPS天线定位失常、定位精度下降以及定位错误等问题，改善了天线的性能，提高了用户的使用体验。
附图3是本发明具体实施方式中所述天线的原理示意图。优选的，所述第一辐射体13包括第一端部31以及与所述第一端部31相对的第二端部32，所述第一端部31与所述馈电点16电连接，所述第二端部32在所述第二表面的投影与所述第二辐射体14部分重叠。其中，对于所述第一辐射体13的具体形状，本具体实施方式中是以所述第一辐射体13的形状为多边形为例进行说明，本领域技术人员可以根据实际需要进行选择，只需确保其可以形成WIFI 2.4G工作频段的谐振即可。
优选的，所述第二辐射体14包括第三端部21以及与所述第三端部21相对的第四端部22；所述第二端部32在所述第二表面的投影与所述第四端部22 部分重叠，所述第三端部21与所述金属边框10电连接。其中，对于所述第二辐射体14的具体形状，本领域技术人员可以根据实际需要进行选择，只需确保其可以形成WIFI 5G工作频段的谐振即可。
为了进一步优化所述第一辐射体13与所述第二辐射体14之间的非接触式电磁耦合馈电的效果，优选的，所述第二端部32的宽度大于所述第一端部31，所述第四端部的宽度22大于所述第三端部31。即通过增大所述第一端部32与所述第二端部31之间的重叠面积，改善两者之间的电磁耦合效果。
优选的，所述天线辐射体还包括设置于所述第一表面的第三辐射体15；所述第三辐射体15与所述馈电点16电连接，用于形成WIFI 5G工作频段的谐振。具体来说，所述第三辐射体15自所述馈电点16接收馈电信号，并与所述天线整体结构的高阶模式形成WIFI 5G工作频段的谐振，从而在有限的空间内集成了GPS天线、BT天线、WIFI 2.4G天线与WIFI 5G天线，极大的提高了空间利用率。其中，对于所述第三辐射体15的具体形状，本具体实施方式是以所述第三辐射体15的形状为L型为例进行说明，本领域技术人员也可以根据实际需要选择合适的第三辐射体形状，只需确保其可以形成WIFI 5G工作频段的谐振即可。
本具体实施方式中，所述第一辐射体13、所述第二辐射体14以及所述第三辐射体15的材料可以均为铜、金或者银。为了降低所述天线的生产成本，优选的，所述第一辐射体13、所述第二辐射体14以及所述第三辐射体15的材料均为铜。
优选的，所述天线还包括阻抗匹配网络17；所述阻抗匹配网络17同时连接所述第一辐射体13的所述第一端部31、第三辐射体15和所述馈电点16，用于将所述馈电点16的馈电信号调节后传输至所述第一辐射体13和所述第三辐射体15。
所述阻抗匹配网络17用于对所述第一辐射体13、所述第二辐射体14以及所述第三辐射体15的性能进行调试和匹配。具体来说，所述介质基板11上的射频输出端依次通过所述馈电点16、所述阻抗匹配网络17传输至所述第一辐射体13、所述第二辐射体14以及所述第三辐射体15。
优选的，所述阻抗匹配网络16包括第一匹配电感L1、第二匹配电感L2、 第三匹配电感L3和匹配电容C；所述第一匹配电感L1的一端连接所述第一辐射体13的所述第一端部31、另一端连接所述匹配电容C的一端；所述匹配电容C的另一端同时连接所述第二匹配电感L2的一端和所述第三匹配电感L3的一端；所述第二匹配电感L2的另一端连接所述馈电点16；所述第三匹配电感L3的另一端连接所述第三辐射体15。
在图3中，P为所述介质基板11中用于向所述天线传输射频信号的信号源。所述阻抗匹配网络16中的所述第一电感L1、所述第二电感L2和所述第三电感L3用于调节所述第一辐射体13、所述第二辐射体14以及所述第三辐射体15的感抗部分，所述匹配电容C用于调节所述辐射体13、所述第二辐射体14以及所述第三辐射体15的容抗部分，以增加所述天线的带宽，进一步提高所述天线的性能。所述信号源P通过射频输出端将馈电信号经所述馈电点16传输至所述阻抗匹配网络16，然后经所述阻抗匹配网络16中的LC器件的调节后，传输至所述第一辐射体13、所述第二辐射体14以及所述第三辐射体15。
具体来说，所述第一电感L1主要用于调节所述天线中WIFI 2.4G的性能参数，所述匹配电容C主要用于调节所述天线中GPS以及WIFI 2.4G的性能参数，所述第二电感L2主要用于调节所述天线中WIFI 2.4G以及WIFI 5G的性能参数，所述第三电感L3主要用于调节所述天线中WIFI 5G的性能参数。
其中，所述第一电感L1、所述第二电感L2和所述第三电感L3可以均为可调电感，所述匹配电容C为可调电容。通过选择所述第一电感L1、所述第二电感L2、所述第三电感L3以及所述匹配电容C的具体数值，可以对所述天线的工作频段、带宽、增益等性能参数进行调整。
优选的，所述天线还包括接地板12；所述第二辐射体14通过所述金属边框10与所述接地板12连接。具体来说，所述第一辐射体13、所述第二辐射体14与所述第三辐射体15分布于所述介质基板11相对两表面的净空区，所述接地板12分布于所述介质基板11除去所述净空区之外的区域中。所述第二辐射体14通过所述金属边框10与所述接地板12连接，使得所述天线在馈入电信号后可以形成闭合回路。
优选的，所述介质基板11包括PCB主板。
附图4A是本发明具体实施方式中所述天线的GPS与WIFI 2.4G谐振曲线，附图4B是本发明具体实施方式中所述天线的WIFI 5G谐振曲线，附图5A-5C是本发明具体实施方式中所述天线的GPS不同视角的方向图，附图6A-6C是本发明具体实施方式中所述天线的WIFI 2.4G不同视角的方向图，附图7A-7C是本发明具体实施方式中所述天线的WIFI 5G不同视角的方向图。由图4A-图4B、图5A-图5C、图6A-图6C、图7A-图7C可知，本具体实施方式提供的所述天线中GPS、WIFI 2.4G、WIFI 5G的增益分别为3.7dB、5.7dB、6.3dB。区别于现有技术中常规的三合一或者四合一天线，本具体实施方式提供的天线克服了环境因素对天线性能的限制，显著提高了GPS信号在上半空间的辐射能力，同时保持了WIFI 2.4G以及WIFI 5G的全向辐射特性，能够显著降低GPS定位失常、定位精度下降、以及定位错误等问题，实现良好的用户体验。
不仅如此，本具体实施方式还提供了一种移动终端，包括上述任一项所述的天线。本具体实施方式中的移动终端可以是但不限于手机、笔记本电脑、平板电脑等。
本具体实施方式提供的天线及移动终端，通过在介质基板的第一表面设置第一辐射体、在与所述第一表面相对的第二表面设置第二辐射体，且第二辐射体与移动终端的金属边框耦合，从而使得由所述第一辐射体、所述第二辐射体与所述金属边框共同构成移动终端的天线辐射体，显著提高了GPS天线的辐射能力，既使处于恶劣的环境中，天线依然能够实现优异的通信性能，减少了GPS天线定位失常、定位精度下降以及定位错误等问题，改善了天线的性能，提高了用户的使用体验。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种天线，用于具有金属边框的移动终端，其特征在于，包括介质基板、天线辐射体和馈电点；其中：
    所述介质基板包括相对的第一表面和第二表面；
    所述天线辐射体包括设置于所述第一表面的第一辐射体以及设置于所述第二表面的第二辐射体，所述第一辐射体在所述第二表面的投影与所述第二辐射体至少部分重叠；
    所述第一辐射体与所述馈电点电连接；
    所述第二辐射体与所述金属边框电连接。
  2. 根据权利要求1所述的天线，其特征在于，所述第一辐射体包括第一端部以及与所述第一端部相对的第二端部，所述第一端部与所述馈电点电连接，所述第二端部在所述第二表面的投影与所述第二辐射体部分重叠。
  3. 根据权利要求2所述的天线，其特征在于，所述第二辐射体包括第三端部以及与所述第三端部相对的第四端部；所述第二端部在所述第二表面的投影与所述第四端部部分重叠，所述第三端部与所述金属边框电连接。
  4. 根据权利要求3所述的天线，其特征在于，所述第二端部的宽度大于所述第一端部，所述第四端部的宽度大于所述第三端部。
  5. 根据权利要求2所述的天线，其特征在于，所述天线辐射体还包括设置于所述第一表面的第三辐射体；所述第三辐射体与所述馈电点电连接，用于形成WIFI 5G工作频段的谐振。
  6. 根据权利要求5所述的天线，其特征在于，还包括阻抗匹配网络；所述阻抗匹配网络同时连接所述第一辐射体的所述第一端部、第三辐射体和所述馈电点，用于将所述馈电点的馈电信号调节后传输至所述第一辐射体和所述第三辐射体。
  7. 根据权利要求6所述的天线，其特征在于，所述阻抗匹配网络包括第一匹配电感、第二匹配电感、第三匹配电感和匹配电容；
    所述第一匹配电感的一端连接所述第一辐射体的所述第一端部、另一端连接所述匹配电容的一端；
    所述匹配电容的另一端同时连接所述第二匹配电感的一端和所述第三匹配 电感的一端；
    所述第二匹配电感的另一端连接所述馈电点；
    所述第三匹配电感的另一端连接所述第三辐射体。
  8. 根据权利要求1所述的天线，其特征在于，还包括接地板；所述第二辐射体通过所述金属边框与所述接地板连接。
  9. 根据权利要求1所述的天线，其特征在于，所述介质基板包括PCB主板。
  10. 一种移动终端，其特征在于，包括如权利要求1-9中任一项所述的天线。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113285209A (zh) * 2021-04-23 2021-08-20 宁波大学 一种支持双模共存的小型化移动终端天线

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109273843B (zh) * 2018-09-19 2020-12-25 深圳市泰衡诺科技有限公司 天线及移动终端
CN111342223B (zh) * 2020-03-06 2023-06-23 内蒙古显鸿科技股份有限公司 一种地埋天线装置及通信系统
CN113839204B (zh) * 2021-09-18 2023-01-31 荣耀终端有限公司 移动终端及高隔离天线对

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101740852A (zh) * 2008-11-05 2010-06-16 启碁科技股份有限公司 宽带平面天线
CN101895008A (zh) * 2009-05-20 2010-11-24 咏业科技股份有限公司 微型天线
CN102055065A (zh) * 2009-11-11 2011-05-11 宏碁股份有限公司 移动通信装置及其天线
CN103151612A (zh) * 2013-03-29 2013-06-12 东南大学 宽边耦合馈电的多频段宽带平面天线
CN104103890A (zh) * 2013-04-03 2014-10-15 深圳富泰宏精密工业有限公司 天线结构及应用该天线结构的无线通信装置
US20150171518A1 (en) * 2013-12-17 2015-06-18 Amazon Technologies, Inc. Multi-band antenna
CN204516894U (zh) * 2015-03-09 2015-07-29 华南理工大学 一种覆盖七频段的小型移动通信设备天线
CN109273843A (zh) * 2018-09-19 2019-01-25 深圳市泰衡诺科技有限公司 天线及移动终端

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103094672B (zh) * 2011-10-28 2015-03-11 鸿富锦精密工业（深圳）有限公司 天线
JP6035170B2 (ja) * 2013-03-01 2016-11-30 株式会社フジクラ 窓フレーム
CN104183926B (zh) * 2013-05-21 2019-08-02 中兴通讯股份有限公司 一种缝隙天线和智能终端
KR102094754B1 (ko) * 2013-12-03 2020-03-30 엘지전자 주식회사 이동 단말기
CN103928753B (zh) * 2014-04-11 2016-08-24 广东欧珀移动通信有限公司 一种手机及其天线
TWI557533B (zh) * 2015-02-10 2016-11-11 宏碁股份有限公司 電子裝置
CN105990638B (zh) * 2015-02-16 2018-11-02 宏碁股份有限公司 电子装置
CN107403992A (zh) * 2016-05-20 2017-11-28 中兴通讯股份有限公司 一种天线和终端设备
US10727569B2 (en) * 2016-12-21 2020-07-28 Htc Corporation Mobile device and manufacturing method thereof
CN107369923B (zh) * 2017-06-22 2022-05-03 北京小米移动软件有限公司 天线组件及终端
CN108336481B (zh) * 2018-01-04 2020-03-20 瑞声科技(新加坡)有限公司 一种天线系统及移动终端

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101740852A (zh) * 2008-11-05 2010-06-16 启碁科技股份有限公司 宽带平面天线
CN101895008A (zh) * 2009-05-20 2010-11-24 咏业科技股份有限公司 微型天线
CN102055065A (zh) * 2009-11-11 2011-05-11 宏碁股份有限公司 移动通信装置及其天线
CN103151612A (zh) * 2013-03-29 2013-06-12 东南大学 宽边耦合馈电的多频段宽带平面天线
CN104103890A (zh) * 2013-04-03 2014-10-15 深圳富泰宏精密工业有限公司 天线结构及应用该天线结构的无线通信装置
US20150171518A1 (en) * 2013-12-17 2015-06-18 Amazon Technologies, Inc. Multi-band antenna
CN204516894U (zh) * 2015-03-09 2015-07-29 华南理工大学 一种覆盖七频段的小型移动通信设备天线
CN109273843A (zh) * 2018-09-19 2019-01-25 深圳市泰衡诺科技有限公司 天线及移动终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113285209A (zh) * 2021-04-23 2021-08-20 宁波大学 一种支持双模共存的小型化移动终端天线

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