WO2022126792A1 - 天线装置及移动终端 - Google Patents

天线装置及移动终端 Download PDF

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Publication number
WO2022126792A1
WO2022126792A1 PCT/CN2020/142123 CN2020142123W WO2022126792A1 WO 2022126792 A1 WO2022126792 A1 WO 2022126792A1 CN 2020142123 W CN2020142123 W CN 2020142123W WO 2022126792 A1 WO2022126792 A1 WO 2022126792A1
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WO
WIPO (PCT)
Prior art keywords
capacitor
antenna
metal
inductor
metal segment
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PCT/CN2020/142123
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English (en)
French (fr)
Inventor
韩洪娟
岳月华
刘见传
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技（南京）有限公司
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Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技（南京）有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022126792A1 publication Critical patent/WO2022126792A1/zh

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Classifications

    • 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
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to an antenna device and a mobile terminal.
  • 5G the 5th generation mobile communication technology, the fifth generation mobile communication technology
  • 4G the 4th Generation mobile communication technology, the fourth generation mobile communication technology
  • 4G antennas also need to be set up in 5G smart phones to take into account the 4G communication function.
  • 5G smartphones on the market basically have 4 built-in Sub 6G antennas to realize the 5G communication function, and built-in separate 4G antennas to realize the 4G communication function.
  • the clearance area in the smartphone is getting smaller and smaller, making the antenna layout more and more difficult.
  • An object of the present invention is to provide an antenna device and a mobile terminal.
  • an antenna device includes a metal frame, a first slot is formed on the metal frame, and the metal frame is divided into a first metal segment and a second metal segment by the first slot, The first metal segment, the first slot and the second metal segment together form a 4G antenna and a Sub 6G antenna.
  • the antenna device further includes a filter circuit, the filter circuit is grounded, and the filter circuit is electrically connected to the second metal section, so as to improve the distance between the 4G antenna and the Sub 6G antenna isolation.
  • the filter circuit includes a first capacitor, a second capacitor, a first inductor, a second inductor and a third inductor, the first capacitor is connected in series with the second metal segment, and the second capacitor with the first capacitor and Sub 6G signal sources are connected in series, the first inductor is connected in parallel between the second metal segment and the first capacitor, the second inductor is connected in parallel between the first capacitor and the second capacitor, the A third inductor is connected in parallel with the second capacitor and the Sub Between the 6G signal sources, the first inductor, the second inductor, and the third inductor are all grounded.
  • the first metal segment includes a first feed point, the first feed point is located at an end of the first metal segment close to the first slot, and the first feed point is for feeding 4G RF signals.
  • the second metal segment includes a second feed point, the second feed point is located at an end of the second metal segment close to the first slot, and the second feed point is to feed the Sub 6G radio frequency signal.
  • the antenna device further includes a first matching circuit
  • the first matching circuit includes a third capacitor, a fourth capacitor, a fifth capacitor and a fourth inductor, the third capacitor and the first capacitor A metal segment is connected in series
  • the fourth inductor is connected in series with the third capacitor and the 4G signal source
  • the fourth capacitor is connected in parallel between the third capacitor and the fourth inductor
  • the fifth capacitor is connected in parallel with Between the fourth inductor and the 4G signal source, the fourth capacitor and the fifth capacitor are both grounded.
  • the 4G antenna is a multiple-input multiple-output 4G antenna.
  • a second slit is further formed on the metal frame, and a third metal segment is divided on the metal frame through the second slit.
  • the antenna device further includes a second matching circuit
  • the second matching circuit includes a sixth capacitor, a seventh capacitor, an eighth capacitor and a fifth inductor, the fifth inductor and the third
  • the metal segments are connected in series
  • the sixth capacitor is connected in series with the fifth inductor and the main signal source
  • the seventh capacitor is connected in parallel between the third metal segment and the fifth inductor
  • the eighth capacitor is connected in parallel with Between the sixth capacitor and the main signal source, the seventh capacitor and the eighth capacitor are both grounded.
  • the present invention further provides a mobile terminal, including an antenna device, where the antenna device is any one of the antenna devices described above.
  • the beneficial effect of the present invention is that: the 4G antenna and the Sub 6G antenna are jointly formed by the first metal segment, the first slot and the second metal segment, and the 4G antenna and the Sub 6G antenna formed on the metal frame do not need to occupy the layout space inside the mobile terminal, There is also no need to provide a separate clearance area for the antenna, and the 4G antenna and the Sub 6G antenna can share the first metal segment, the first slot, and the second metal segment, thus simplifying the antenna design of the mobile terminal.
  • FIG. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a metal frame according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an antenna device according to an embodiment of the present invention.
  • FIG. 4 is a comparison diagram of the isolation degree when the filter circuit is provided in the antenna device according to the embodiment of the present invention and when the filter circuit is not provided.
  • the present invention provides a mobile terminal, which can be a device such as a smart phone, a tablet computer, and the like.
  • FIG. 1 is a schematic structural diagram of a mobile terminal 100 according to an embodiment of the present invention.
  • the mobile terminal 100 includes a metal frame 20 , a circuit board 40 and a middle frame 60 .
  • the metal frame 20 is arranged around the outer periphery of the mobile terminal 100 to form a side frame of the mobile terminal 100 .
  • the material of the metal frame 20 may include materials such as magnesium alloy, aluminum alloy and the like.
  • the circuit board 40 is disposed inside the mobile terminal 100 .
  • the circuit board 40 may be a main board or a small board of the mobile terminal 100 , and a plurality of electronic devices may be integrated on the circuit board 40 .
  • the circuit board 40 is disposed at the bottom of the mobile terminal 100 .
  • the middle frame 60 may be used to form the main structure of the mobile terminal 100 for carrying other electronic devices or functional components, so as to install the electronic components and functional components of the mobile terminal 100 together.
  • the metal frame 20 may surround the outer periphery of the middle frame 60 to form the side frame of the mobile terminal 100 .
  • the circuit board 40 may also be arranged on the middle frame 60 , for example, the circuit board 40 may be arranged on the middle frame 60 by means of bonding, clamping or the like. It can be understood that, in order to enhance the structural strength of the middle frame 60 , a metal material such as magnesium alloy, aluminum alloy and the like can be selected to form the middle frame 60 .
  • a plurality of metal segments are formed on the metal frame 20, such as a first metal segment 222, a second metal segment 224, a third metal segment 226, a fourth metal segment 227, a fifth metal segment 228, a sixth metal segment Metal segment 232 , seventh metal segment 234 , eighth metal segment 236 , and ninth metal segment 237 .
  • the fifth metal segment 228 is connected with the sixth metal segment 232, or is understood to be formed together.
  • the first metal segment 222 is formed at the bottom of the left side of the metal frame 20 .
  • the second metal segment 224 is formed in the middle of the left side of the metal frame 20 .
  • the third metal segment 226 is formed at the bottom of the metal frame 20 .
  • the fourth metal segment 227 is formed in the middle of the left side of the metal frame 20 .
  • the fifth metal segment 228 is formed on the top of the left side of the metal frame 20 .
  • the sixth metal segment 232 is formed on the top left side of the metal frame 20 .
  • the seventh metal segment 234 is formed on the top right side of the metal frame 20 .
  • the eighth metal segment 236 is formed at the bottom of the right side of the metal frame 20 .
  • the ninth metal segment 237 is formed in the middle of the right side of the metal frame 20 .
  • a Sub 6G antenna 422 may be provided on the circuit board 40 .
  • the Sub 6G antenna 422 may be, for example, an FPC (Flexible Printed Circuit, flexible circuit board) antenna.
  • Sub The 6G antenna can be used to transmit 5G radio frequency signals in the Sub 6G frequency band.
  • FIG. 2 is a schematic structural diagram of a metal frame 20 according to an embodiment of the present invention.
  • the metal frame 20 is formed with a plurality of slits, and the metal frame 20 is divided into a plurality of metal segments by the plurality of slits. For example, a first slit 242 , a second slit 244 , a third slit 246 , a fourth slit 248 , a fifth slit 252 and a sixth slit 254 are formed on the metal frame 20 . Wherein, after the metal frame 20 is formed, a plurality of slits may be formed by machining methods such as cutting.
  • the metal frame 20 can be divided into a first metal segment 222 and a second metal segment 224 through the first slit 242 , and the first metal segment 222 and the second metal segment 224 are located on both sides of the first slit 242 respectively.
  • a third metal segment 226 is divided on the metal frame 20 through the second slit 244 and the sixth slit 254 , and the first metal segment 222 and the third metal segment 226 are located on both sides of the second slit 244 respectively.
  • the fourth metal segment 227 and the fifth metal segment 228 are divided on the metal frame 20 through the third slit 246 , and the fourth metal segment 227 and the fifth metal segment 228 are respectively located on both sides of the third slit 248 .
  • a sixth metal segment 232 and a seventh metal segment 234 are divided on the metal frame 20 through the fourth slit 248 , and the sixth metal segment 232 and the seventh metal segment 234 are located on both sides of the fourth slit 248 respectively.
  • the eighth metal segment 236 and the ninth metal segment 237 are divided on the metal frame 20 through the fifth slit 252 , and the eighth metal segment 236 and the ninth metal segment 237 are respectively located on both sides of the fifth slit 252 .
  • a plurality of metal segments can be divided on the metal frame 20 through the plurality of slits.
  • each slot on the metal frame 20 and the metal segments on one side or both sides of the slot may form an antenna together.
  • the first metal segment 222 , the first slot 242 and the second metal segment 224 may jointly form a 4G (the 4th generation mobile communication technology, fourth generation mobile communication technology) antenna and a Sub 6G antenna.
  • the 4G antenna can be 4G LTE (Long Term Evolution, Long Term Evolution) antenna.
  • the 4G antenna is a multiple-in multiple-out (multiple-in multiple-out, MIMO) 4G antenna, that is, a 4G MIMO antenna.
  • the Sub 6G antenna can be used to transmit 5G radio frequency signals in the Sub 6G frequency band.
  • the 4G antenna and the Sub 6G antenna formed by the first metal segment 222 , the first slot 242 and the second metal segment 224 can share the first metal segment 222 , the first slot 242 and the second metal segment 224 , so that the first metal segment 222 , the first slot 242 and the second metal segment 224 can be fully utilized
  • the metal frame 20 forms the antenna.
  • the third metal segment 226, the second slot 244, and the sixth slot 254 may collectively form the main antenna.
  • the main antenna can be used to transmit 4G radio frequency signals of low frequency, intermediate frequency and high frequency.
  • the fourth metal segment 227, the third slot 246, and the fifth metal segment 228 may also form a Sub 6G antenna.
  • the sixth metal segment 232 , the fourth slot 248 and the seventh metal segment 234 may form a GPS (Global Positioning System, global positioning system) antenna and a Wi-Fi (Wireless Fidelity, wireless fidelity) antenna.
  • the eighth metal segment 236, the fifth slot 252, and the ninth metal segment 237 may also form a Sub 6G antenna.
  • Sub 6G antennas as well as 4G LTE antennas, GPS antennas, and Wi-Fi antennas can be formed on the mobile terminal 100 at the same time, so as to realize corresponding communication functions.
  • the antenna in the mobile terminal 100 may form an antenna device, and communication with a base station, a satellite or other mobile terminals is implemented through the antenna device, thereby realizing the communication function of the mobile terminal 100 .
  • the 4G antenna and the Sub 6G antenna are jointly formed by the first metal segment 222 , the first slot 242 and the second metal segment 224 , and the 4G antenna and the Sub 6G antenna formed on the metal frame 20 do not need to occupy
  • the layout space inside the mobile terminal does not need to provide a separate clearance area for the antenna, and the 4G antenna and the Sub 6G antenna can share the first metal segment 222, the first slot 242 and the second metal segment 224, so it can simplify the movement.
  • the first metal segment 222 includes a first feeding point 2222 .
  • the first feeding point 2222 is located at one end of the first metal segment 222 close to the first slit 242 .
  • the first feeding point 2222 can be used to feed the 4G radio frequency signal to the first metal segment 222, and the first metal segment 222 and the second metal segment 224 can be electrically connected by electromagnetic coupling through the first gap 242, so that the first metal segment 224 can be electrically connected by electromagnetic coupling.
  • 222 and the second metal segment 224 together radiate 4G radio frequency signals to form a 4G antenna.
  • the second metal segment 224 includes a second feed point 2242 .
  • the second feeding point 2242 is located at one end of the second metal segment 224 close to the first slit 242 .
  • the second feeding point 2242 can be used to feed the Sub 6G radio frequency signal to the second metal segment 224.
  • the first metal segment 222 and the second metal segment 224 can be electrically connected by electromagnetic coupling through the first gap 242, so that the The first metal segment 222 and the second metal segment 224 radiate the Sub 6G radio frequency signal outward, thereby forming a Sub 6G antenna.
  • FIG. 3 is a schematic structural diagram of an antenna apparatus according to an embodiment of the present invention.
  • the antenna device includes a 4G antenna P1 and a Sub 6G antenna P2 jointly formed by the first metal segment 222, the first slot 242 and the second metal segment 224, a main antenna P3 formed by the third metal segment 226 and the second slot 244, a plurality of The Sub 6G antenna P4 and the Wi-Fi antenna P5 formed by the sixth metal segment 232 , the fourth slot 248 and the seventh metal segment 234 .
  • the plurality of Sub 6G antennas P4 include Sub 6G antennas jointly formed by the fourth metal segment 227 , the third slot 246 and the fifth metal segment 228 , the eighth metal segment 236 , the fifth slot 252 and the ninth metal segment 237 formed together Sub 6G antenna.
  • the antenna device further includes a filter circuit 262, a first matching circuit 264, a second matching circuit 266, a third matching circuit 268, a fourth matching circuit 272, Sub 6G signal source S1, 4G signal source S2, main signal source S3, Sub 6G signal source S4 and Wi-Fi signal source S5.
  • the filter circuit 262 is electrically connected to the Sub 6G antenna P2, for example, to the second metal segment 224, and the filter circuit 262 is grounded.
  • the filtering circuit 262 is used for filtering to improve the isolation between the 4G antenna P1 and the Sub 6G antenna P2.
  • the filter circuit 262 includes a first capacitor C1, a second capacitor C2, a first inductor L1, a second inductor L2, and a third inductor L3.
  • the first capacitor C1 is connected in series with the second metal segment 224 .
  • the second capacitor C2 is connected in series with the first capacitor C1 and the Sub 6G signal source S1.
  • the first inductor L1 is connected in parallel between the second metal segment 224 and the first capacitor C1.
  • the second inductor L2 is connected in parallel between the first capacitor C1 and the second capacitor C2.
  • the third inductor L3 is connected in parallel between the second capacitor C2 and the Sub 6G signal source S1.
  • the first inductor L1, the second inductor L2, and the third inductor L3 are all grounded.
  • the capacitance values of the first capacitor C1 and the second capacitor C2 may both be 0.7pF.
  • the inductance values of the first inductor L1 and the third inductor L3 may both be 3nH.
  • the inductance value of the second inductor L2 may be 1.5nH.
  • FIG. 4 is a comparison diagram of the isolation degree when the filter circuit is provided and the filter circuit is not provided in the antenna device according to the embodiment of the present invention.
  • the curve L1 represents the isolation between the 4G antenna P1 and the Sub 6G antenna P2 when the filter circuit 262 is not set in the antenna device;
  • the curve L2 represents the difference between the 4G antenna P1 and the Sub 6G antenna P2 after the filter circuit 262 is set in the antenna device isolation between. It can be seen from FIG. 4 that after setting the filter circuit 262, the isolation between the two antennas is significantly improved in the frequency band above 1.805 GHz.
  • the first matching circuit 264 is electrically connected to the 4G antenna P1, eg, to the first metal segment 222, and the first matching circuit 264 is grounded.
  • the first matching circuit 264 is used to perform impedance matching on the 4G antenna P1.
  • the first matching circuit 264 includes a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, and a fourth inductor L4.
  • the third capacitor C3 is connected in series with the first metal segment 222 .
  • the fourth inductor L4 is connected in series with the third capacitor C3 and the 4G signal source S2.
  • the fourth capacitor C4 is connected in parallel between the third capacitor C3 and the fourth inductor L4.
  • the fifth capacitor C5 is connected in parallel between the fourth inductor L4 and the 4G signal source S2.
  • the fourth capacitor C4 and the fifth capacitor C5 are both grounded.
  • the capacitance value of the third capacitor C3 may be 1 pF.
  • the capacitance value of the fourth capacitor C4 may be 8.5pF.
  • the capacitance value of the fifth capacitor C5 may be 5.1pF.
  • the inductance value of the fourth inductor L4 may be 1.8nH.
  • the second matching circuit 266 is electrically connected to the main antenna P3, eg, to the third metal segment 226, and the second matching circuit 266 is grounded.
  • the second matching circuit 266 is used to perform impedance matching on the main antenna P3.
  • the second matching circuit 266 includes a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, and a fifth inductor L5.
  • the fifth inductor L5 is connected in series with the third metal segment 226 .
  • the sixth capacitor C6 is connected in series with the fifth inductor L5 and the main signal source S3.
  • the seventh capacitor C7 is connected in parallel between the third metal segment 226 and the fifth inductor L5.
  • the eighth capacitor C8 is connected in parallel between the sixth capacitor C6 and the main signal source S3.
  • the seventh capacitor C7 and the eighth capacitor C8 are both grounded.
  • the inductance value of the fifth inductor L5 may be 5.6nH.
  • the capacitance value of the sixth capacitor C6 may be 2.7pF.
  • the capacitance value of the seventh capacitor C7 may be 2.6pF.
  • the capacitance value of the eighth capacitor C8 may be 0.7pF.
  • the third matching circuit 268 is electrically connected to the Sub 6G antenna P4, eg, the fifth metal segment 228 or the eighth metal segment 236, and the third matching circuit 268 is grounded.
  • the third matching circuit 268 is used to perform impedance matching on the Sub 6G antenna P4.
  • the third matching circuit 268 includes a ninth capacitor C9.
  • the ninth capacitor C9 is connected in series with the Sub 6G antenna P4 and the Sub 6G signal source S4.
  • the capacitance value of the ninth capacitor C9 may be 0.7pF.
  • the fourth matching circuit 272 is electrically connected to the Wi-Fi antenna P5, eg, the seventh metal segment 234, and the fourth matching circuit 272 is grounded.
  • the fourth matching circuit 272 is used to perform impedance matching on the Wi-Fi antenna P5.
  • the fourth matching circuit 272 includes a tenth capacitor C10 , an eleventh capacitor C11 , a sixth inductor L6 and a seventh inductor L7 .
  • the tenth capacitor C10 is connected in series with the seventh metal segment 234 .
  • the eleventh capacitor C11 is connected in series with the tenth capacitor C10 and the Wi-Fi signal source S5.
  • the sixth inductor L6 is connected in parallel between the tenth capacitor C10 and the eleventh capacitor C11.
  • the seventh inductor L7 is connected in parallel between the eleventh capacitor C11 and the Wi-Fi signal source S5.
  • the capacitance value of the tenth capacitor C10 may be 2.6pF.
  • the capacitance value of the eleventh capacitor C11 may be 1 pF.
  • the inductance value of the sixth inductor L6 may be 2.2nH.
  • the inductance value of the seventh inductor L7 may be 1.2nH.

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Abstract

本发明提供了一种天线装置和移动终端，天线装置包括金属边框，所述金属边框上形成有第一缝隙，通过所述第一缝隙将所述金属边框分割为第一金属段和第二金属段，所述第一金属段、所述第一缝隙以及所述第二金属段共同形成4G天线和Sub 6G天线。本发明的天线装置，通过第一金属段、第一缝隙以及第二金属段共同形成4G天线和Sub 6G天线，金属边框上形成的4G天线和Sub 6G天线无需占用移动终端内部的布局空间，也无需为天线提供单独的净空区域，并且4G天线和Sub 6G天线可以实现对第一金属段、第一缝隙以及第二金属段的共用，因此可以简化移动终端的天线设计。

Description

天线装置及移动终端
本发明要求于2020年12月16日提交中国专利局、申请号为202023041805.0、发明名称为“天线装置及移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本发明中。
技术领域
本发明涉及通信技术领域，特别涉及一种天线装置及移动终端。
 背景技术
随着5G（the 5th generation mobile communication technology，第五代移动通信技术）智能手机的逐步普及，智能手机需要设置更多的天线来实现5G通信功能。同时，在4G（the 4th generation mobile communication technology，第四代移动通信技术）智能手机向5G智能手机发展的过程中，5G智能手机中也需要设置4G天线来兼顾4G通信功能。
现有技术中，市场上的5G智能手机基本上都是内置4根Sub 6G天线来实现5G通信功能，以及内置单独的4G天线来实现4G通信功能。从而，导致智能手机内净空区域越来越小，使得天线布局难度越来越大。
 技术问题
因此，有必要提供一种新型的天线装置以解决现有技术中天线布局难度大的问题。
 技术解决方案
本发明的目的在于提供一种天线装置及移动终端。
本发明的技术方案如下：一种天线装置，包括金属边框，所述金属边框上形成有第一缝隙，通过所述第一缝隙将所述金属边框分割为第一金属段和第二金属段，所述第一金属段、所述第一缝隙以及所述第二金属段共同形成4G天线和Sub 6G天线。
在一些实施例中，所述天线装置还包括滤波电路，所述滤波电路接地，所述滤波电路与所述第二金属段电连接，以提高所述4G天线与所述Sub 6G天线之间的隔离度。
在一些实施例中，所述滤波电路包括第一电容、第二电容、第一电感、第二电感以及第三电感，所述第一电容与所述第二金属段串联，所述第二电容与所述第一电容以及Sub 6G信号源串联，所述第一电感并联在所述第二金属段与所述第一电容之间，所述第二电感并联在所述第一电容与所述第二电容之间，所述第三电感并联在所述第二电容与所述Sub 6G信号源之间，所述第一电感、所述第二电感、所述第三电感均接地。
在一些实施例中，所述第一金属段包括第一馈电点，所述第一馈电点位于所述第一金属段靠近所述第一缝隙的一端，所述第一馈电点用于馈入4G射频信号。
在一些实施例中，所述第二金属段包括第二馈电点，所述第二馈电点位于所述第二金属段靠近所述第一缝隙的一端，所述第二馈电点用于馈入Sub 6G射频信号。
在一些实施例中，所述的天线装置还包括第一匹配电路，所述第一匹配电路包括第三电容、第四电容、第五电容以及第四电感，所述第三电容与所述第一金属段串联，所述第四电感与所述第三电容以及4G信号源串联，所述第四电容并联在所述第三电容与所述第四电感之间，所述第五电容并联在所述第四电感与所述4G信号源之间，所述第四电容、所述第五电容均接地。
在一些实施例中，所述4G天线为多输入多输出的4G天线。
在一些实施例中，所述金属边框上还形成有第二缝隙，通过所述第二缝隙在所述金属边框上分割出第三金属段，所述第一金属段、所述第三金属段分为位于所述第二缝隙两侧，所述第三金属段以及所述第二缝隙形成主天线。
在一些实施例中，所述天线装置还包括第二匹配电路，所述第二匹配电路包括第六电容、第七电容、第八电容以及第五电感，所述第五电感与所述第三金属段串联，所述第六电容与所述第五电感以及主信号源串联，所述第七电容并联在所述第三金属段与所述第五电感之间，所述第八电容并联在所述第六电容与所述主信号源之间，所述第七电容、所述第八电容均接地。
本发明还提供一种移动终端，包括天线装置，所述天线装置为上述任一项所述的天线装置。
 有益效果
本发明的有益效果在于：通过第一金属段、第一缝隙以及第二金属段共同形成4G天线和Sub 6G天线，金属边框上形成的4G天线和Sub 6G天线无需占用移动终端内部的布局空间，也无需为天线提供单独的净空区域，并且4G天线和Sub 6G天线可以实现对第一金属段、第一缝隙以及第二金属段的共用，因此可以简化移动终端的天线设计。
 附图说明
图1为本发明实施例的移动终端的结构示意图。
图2为本发明实施例的金属边框的结构示意图。
图3为本发明实施例的天线装置的结构示意图。
图4为本发明实施例的天线装置中设置滤波电路与未设置滤波电路时的隔离度对比图。
 本发明的实施方式
下面结合附图和实施方式对本发明作进一步说明。
本发明提供一种移动终端，该移动终端可以为诸如智能手机、平板电脑等设备。
参考图1，图1为本发明实施例的移动终端100的结构示意图。移动终端100包括金属边框20、电路板40以及中框60。
其中，金属边框20围设在移动终端100的外部周缘，从而形成移动终端100的侧边框。金属边框20的材质可以包括诸如镁合金、铝合金等材质。
电路板40设置在移动终端100内部。电路板40可以为移动终端100的主板或者小板，电路板40上可以集成多个电子器件。在本实施例中，电路板40设置在移动终端100的底端。
中框60可以用于形成移动终端100的主体结构，用于承载其他电子器件或功能组件，以将移动终端100的电子器件、功能组件安装到一起。例如，金属边框20可以围设在中框60的外周缘，以形成移动终端100的侧边框。电路板40也可以设置在中框60上，例如电路板40可以通过粘接、卡接等方式设置在中框60上。可以理解的，为了增强中框60的结构强度，可以选择诸如镁合金、铝合金等金属材质形成中框60。
在本实施例中，金属边框20上形成有多个金属段，例如第一金属段222、第二金属段224、第三金属段226、第四金属段227、第五金属段228、第六金属段232、第七金属段234、第八金属段236以及第九金属段237。其中，第五金属段228与第六金属段232连接，或者理解为形成在一起。第一金属段222形成在金属边框20的左侧边底部。第二金属段224形成在金属边框20的左侧边中部。第三金属段226形成在金属边框20的底部。第四金属段227形成在金属边框20的左侧边中部。第五金属段228形成在金属边框20的左侧边顶部。第六金属段232形成在金属边框20的顶部左侧。第七金属段234形成在金属边框20的顶部右侧。第八金属段236形成在金属边框20的右侧边底部。第九金属段237形成在金属边框20的右侧边中部。
此外，电路板40上可以设置Sub 6G天线422。Sub 6G天线422例如可以为FPC（Flexible Printed Circuit，柔性电路板）天线。Sub 6G天线可以用于传输Sub 6G频段的5G射频信号。
在一些实施例中，参考图2，图2为本发明实施例的金属边框20的结构示意图。
金属边框20上形成有多个缝隙，通过多个缝隙将金属边框20分割为多个金属段。例如，金属边框20上形成有第一缝隙242、第二缝隙244、第三缝隙246、第四缝隙248、第五缝隙252以及第六缝隙254。其中，可以在金属边框20成型后，通过诸如切削等机械加工方式形成多个缝隙。
其中，可以通过该第一缝隙242将金属边框20分割为第一金属段222和第二金属段224，第一金属段222、第二金属段224分别位于第一缝隙242的两侧。通过第二缝隙244和第六缝隙254在金属边框20上分割出第三金属段226，第一金属段222、第三金属段226分别位于第二缝隙244两侧。通过第三缝隙246在金属边框20上分割出第四金属段227和第五金属段228，第四金属段227、第五金属段228分别位于第三缝隙248两侧。通过第四缝隙248在金属边框20上分割出第六金属段232和第七金属段234，第六金属段232、第七金属段234分别位于第四缝隙248两侧。通过第五缝隙252在金属边框20上分割出第八金属段236和第九金属段237，第八金属段236、第九金属段237分别位于第五缝隙252两侧。
因此，通过在金属边框20上形成多个缝隙，进而可以通过多个缝隙在金属边框20上分割出多个金属段。
其中，金属边框20上的每一个缝隙以及缝隙一侧或者两侧的金属段可以共同形成天线。
例如，第一金属段222、第一缝隙242以及第二金属段224可以共同形成4G（the 4th generation mobile communication technology，第四代移动通信技术）天线和Sub 6G天线。4G天线例如可以为4G LTE（Long Term Evolution，长期演进）天线。在一些实施例中，该4G天线为多输入多输出（multiple-in multiple-out，MIMO）的4G天线，也即4G MIMO天线。Sub 6G天线可以用于传输Sub 6G频段的5G射频信号。
因此，第一金属段222、第一缝隙242以及第二金属段224共同形成的4G天线和Sub 6G天线可以共用第一金属段222、第一缝隙242以及第二金属段224，从而可以充分利用金属边框20来形成天线。
第三金属段226、第二缝隙244以及第六缝隙254可以共同形成主天线。其中，主天线可以用于传输低频、中频、高频的4G射频信号。第四金属段227、第三缝隙246以及第五金属段228也可以形成Sub 6G天线。第六金属段232、第四缝隙248以及第七金属段234可以形成GPS（Global Positioning System，全球定位系统）天线和Wi-Fi（Wireless Fidelity，无线保真）天线。第八金属段236、第五缝隙252以及第九金属段237也可以形成Sub 6G天线。
因此，移动终端100上即可同时形成4支Sub 6G天线，以及形成4G LTE天线、GPS天线和Wi-Fi天线，以实现对应的通信功能。
可以理解的，移动终端100中的天线可以形成天线装置，通过天线装置实现与基站、卫星或其他移动终端的通信，从而实现移动终端100的通信功能。
本发明实施例的移动终端100中，通过第一金属段222、第一缝隙242以及第二金属段224共同形成4G天线和Sub 6G天线，金属边框20上形成的4G天线和Sub 6G天线无需占用移动终端内部的布局空间，也无需为天线提供单独的净空区域，并且4G天线和Sub 6G天线可以实现对第一金属段222、第一缝隙242以及第二金属段224的共用，因此可以简化移动终端100的天线设计。
在一些实施例中，继续参考图2。其中，第一金属段222包括第一馈电点2222。第一馈电点2222位于第一金属段222靠近第一缝隙242的一端。第一馈电点2222可以用于向第一金属段222馈入4G射频信号，第一金属段222和第二金属段224可以通过第一缝隙242以电磁耦合实现电连接，使第一金属段222和第二金属段224共同向外辐射4G射频信号，从而形成4G天线。
第二金属段224包括第二馈电点2242。第二馈电点2242位于第二金属段224靠近第一缝隙242的一端。第二馈电点2242可以用于向第二金属段224馈入Sub 6G射频信号，同样的，第一金属段222和第二金属段224可以通过第一缝隙242以电磁耦合实现电连接，使第一金属段222和第二金属段224向外辐射Sub 6G射频信号，从而形成Sub 6G天线。
在一些实施例中，参考图3，图3为本发明实施例的天线装置的结构示意图。
天线装置包括第一金属段222、第一缝隙242以及第二金属段224共同形成的4G天线P1和Sub 6G天线P2、第三金属段226和第二缝隙244共同形成的主天线P3、多个Sub 6G天线P4以及第六金属段232、第四缝隙248、第七金属段234形成的Wi-Fi天线P5。该多个Sub 6G天线P4包括第四金属段227、第三缝隙246以及第五金属段228共同形成的Sub 6G天线、第八金属段236、第五缝隙252以及第九金属段237共同形成的Sub 6G天线。
此外，天线装置还包括滤波电路262、第一匹配电路264、第二匹配电路266、第三匹配电路268、第四匹配电路272、Sub 6G信号源S1、4G信号源S2、主信号源S3、Sub 6G信号源S4以及Wi-Fi信号源S5。
其中，滤波电路262与Sub 6G天线P2电连接，例如与第二金属段224电连接，并且滤波电路262接地。滤波电路262用于滤波，以提高4G天线P1与Sub 6G天线P2之间的隔离度。
在一些实施例中，滤波电路262包括第一电容C1、第二电容C2、第一电感L1、第二电感L2以及第三电感L3。第一电容C1与第二金属段224串联。第二电容C2与第一电容C1以及Sub 6G信号源S1串联。第一电感L1并联在第二金属段224与第一电容C1之间。第二电感L2并联在第一电容C1与第二电容C2之间。第三电感L3并联在第二电容C2与Sub 6G信号源S1之间。第一电感L1、第二电感L2、第三电感L3均接地。
其中，第一电容C1、第二电容C2的电容值可以都为0.7pF。第一电感L1、第三电感L3的电感值可以都为3nH。第二电感L2的电感值可以为1.5nH。
同时参考图4，图4为本发明实施例的天线装置中设置滤波电路与未设置滤波电路时的隔离度对比图。其中，曲线L1表示天线装置中未设置滤波电路262时，4G天线P1与Sub 6G天线P2之间的隔离度；曲线L2表示天线装置中设置滤波电路262后，4G天线P1与Sub 6G天线P2之间的隔离度。由图4可知，设置滤波电路262后，两个天线之间的隔离度在1.805GHz以上的频段得到了明显提升。
第一匹配电路264与4G天线P1电连接，例如与第一金属段222电连接，并且第一匹配电路264接地。第一匹配电路264用于对4G天线P1进行阻抗匹配。
在一些实施例中，第一匹配电路264包括第三电容C3、第四电容C4、第五电容C5以及第四电感L4。第三电容C3与第一金属段222串联。第四电感L4与第三电容C3以及4G信号源S2串联。第四电容C4并联在第三电容C3与第四电感L4之间。第五电容C5并联在第四电感L4与4G信号源S2之间。第四电容C4、第五电容C5均接地。
其中，第三电容C3的电容值可以为1pF。第四电容C4的电容值可以为8.5pF。第五电容C5的电容值可以为5.1pF。第四电感L4的电感值可以为1.8nH。
第二匹配电路266与主天线P3电连接，例如与第三金属段226电连接，并且第二匹配电路266接地。第二匹配电路266用于对主天线P3进行阻抗匹配。
在一些实施例中，第二匹配电路266包括第六电容C6、第七电容C7、第八电容C8以及第五电感L5。第五电感L5与第三金属段226串联。第六电容C6与第五电感L5以及主信号源S3串联。第七电容C7并联在第三金属段226与第五电感L5之间。第八电容C8并联在第六电容C6与主信号源S3之间。第七电容C7、第八电容C8均接地。
其中，第五电感L5的电感值可以为5.6nH。第六电容C6的电容值可以为2.7pF。第七电容C7的电容值可以为2.6pF。第八电容C8的电容值可以为0.7pF。
第三匹配电路268与Sub 6G天线P4电连接，例如与第五金属段228或第八金属段236电连接，并且第三匹配电路268接地。第三匹配电路268用于对Sub 6G天线P4进行阻抗匹配。
在一些实施例中，第三匹配电路268包括第九电容C9。第九电容C9与Sub 6G天线P4、Sub 6G信号源S4串联。其中，第九电容C9的电容值可以为0.7pF。
第四匹配电路272与Wi-Fi天线P5电连接，例如与第七金属段234电连接，并且第四匹配电路272接地。第四匹配电路272用于对Wi-Fi天线P5进行阻抗匹配。
在一些实施例中，第四匹配电路272包括第十电容C10、第十一电容C11、第六电感L6以及第七电感L7。第十电容C10与第七金属段234串联。第十一电容C11与第十电容C10以及Wi-Fi信号源S5串联。第六电感L6并联在第十电容C10与第十一电容C11之间。第七电感L7并联在第十一电容C11与Wi-Fi信号源S5之间。
其中，第十电容C10的电容值可以为2.6pF。第十一电容C11的电容值可以为1pF。第六电感L6的电感值可以为2.2nH。第七电感L7的电感值可以为1.2nH。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (10)

  1. 一种天线装置，其特征在于，包括金属边框，所述金属边框上形成有第一缝隙，通过所述第一缝隙将所述金属边框分割为第一金属段和第二金属段，所述第一金属段、所述第一缝隙以及所述第二金属段共同形成4G天线和Sub 6G天线。
  2. 根据权利要求1所述的天线装置，其特征在于，还包括滤波电路，所述滤波电路接地，所述滤波电路与所述第二金属段电连接，以提高所述4G天线与所述Sub 6G天线之间的隔离度。
  3. 根据权利要求2所述的天线装置，其特征在于，所述滤波电路包括第一电容、第二电容、第一电感、第二电感以及第三电感，所述第一电容与所述第二金属段串联，所述第二电容与所述第一电容以及Sub 6G信号源串联，所述第一电感并联在所述第二金属段与所述第一电容之间，所述第二电感并联在所述第一电容与所述第二电容之间，所述第三电感并联在所述第二电容与所述Sub 6G信号源之间，所述第一电感、所述第二电感、所述第三电感均接地。
  4. 根据权利要求1至3任一项所述的天线装置，其特征在于，所述第一金属段包括第一馈电点，所述第一馈电点位于所述第一金属段靠近所述第一缝隙的一端，所述第一馈电点用于馈入4G射频信号。
  5. 根据权利要求1至3任一项所述的天线装置，其特征在于，所述第二金属段包括第二馈电点，所述第二馈电点位于所述第二金属段靠近所述第一缝隙的一端，所述第二馈电点用于馈入Sub 6G射频信号。
  6. 根据权利要求1至3任一项所述的天线装置，其特征在于，还包括第一匹配电路，所述第一匹配电路包括第三电容、第四电容、第五电容以及第四电感，所述第三电容与所述第一金属段串联，所述第四电感与所述第三电容以及4G信号源串联，所述第四电容并联在所述第三电容与所述第四电感之间，所述第五电容并联在所述第四电感与所述4G信号源之间，所述第四电容、所述第五电容均接地。
  7. 根据权利要求1至3任一项所述的天线装置，其特征在于，所述4G天线为多输入多输出的4G天线。
  8. 根据权利要求1至3任一项所述的天线装置，其特征在于，所述金属边框上还形成有第二缝隙，通过所述第二缝隙在所述金属边框上分割出第三金属段，所述第一金属段、所述第三金属段分为位于所述第二缝隙两侧，所述第三金属段以及所述第二缝隙形成主天线。
  9. 根据权利要求8所述的天线装置，其特征在于，还包括第二匹配电路，所述第二匹配电路包括第六电容、第七电容、第八电容以及第五电感，所述第五电感与所述第三金属段串联，所述第六电容与所述第五电感以及主信号源串联，所述第七电容并联在所述第三金属段与所述第五电感之间，所述第八电容并联在所述第六电容与所述主信号源之间，所述第七电容、所述第八电容均接地。
  10. 一种移动终端，其特征在于，包括天线装置，所述天线装置为权利要求1至9任一项所述的天线装置。
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