WO2018157660A1 - 复用天线和天线复用的方法 - Google Patents

复用天线和天线复用的方法 Download PDF

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Publication number
WO2018157660A1
WO2018157660A1 PCT/CN2017/119088 CN2017119088W WO2018157660A1 WO 2018157660 A1 WO2018157660 A1 WO 2018157660A1 CN 2017119088 W CN2017119088 W CN 2017119088W WO 2018157660 A1 WO2018157660 A1 WO 2018157660A1
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Prior art keywords
signal
antenna
capacitive sensor
capacitor
superimposed
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PCT/CN2017/119088
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English (en)
French (fr)
Inventor
李日辉
Original Assignee
维沃移动通信有限公司
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Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to ES17898854T priority Critical patent/ES2886496T3/es
Priority to US16/489,580 priority patent/US11095322B2/en
Priority to EP17898854.9A priority patent/EP3579432B1/en
Publication of WO2018157660A1 publication Critical patent/WO2018157660A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
    • 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
    • H01Q1/243—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 with built-in antennas
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method for multiplexing antennas and antenna multiplexing.
  • capacitive sensors in mobile terminals include: (1) detecting the distance of the human body through a capacitive sensor, reducing the transmitting power of the antenna when the human body approaches the mobile terminal, and reducing the impact on the human body; (2) detecting the left hand holding by the capacitive sensor Or right hand-held to match the left and right hand mode of the mobile terminal interface.
  • the capacitive sensor and the antenna are generally independent and separated modules or assembled modules.
  • the two units are disposed in the mobile terminal, occupying a large space, high cost, and the distance between the two units is very close, and the capacitance is
  • the sensor can significantly affect the performance of the antenna.
  • Embodiments of the present disclosure provide a method for multiplexing antennas and antenna multiplexing to solve the problem that two independent units of an antenna and a capacitive sensor occupy more space.
  • a multiplexing antenna comprising an antenna unit and a signal separation circuit
  • the antenna unit is connected to the signal input end of the signal separation circuit for receiving the superimposed signal, and transmitting the received superimposed signal to the signal separation circuit through the signal input end;
  • the signal separation circuit is configured to separate the superposed signal into an antenna signal and a capacitive sensor signal
  • the first output end of the signal separating circuit is connected to the antenna signal receiving end, and is configured to input the separated antenna signal into the antenna signal receiving end;
  • the second output end of the signal separation circuit is connected to the capacitive sensor signal receiving end for inputting the separated capacitive sensor signal into the capacitive sensor signal receiving end.
  • a method for antenna multiplexing comprising:
  • a multiplexed antenna includes an antenna unit and a signal separation circuit; the antenna unit is configured to receive a superimposed signal, and transmit the received superimposed signal to a signal separation circuit; the signal separation circuit is configured to separate the superimposed signal into an antenna signal And the capacitive sensor signal, and the separated antenna signal is input to the antenna signal receiving end, and the separated capacitive sensor signal is input to the capacitive sensor signal receiving end.
  • FIG. 1 is a circuit diagram of a multiplex antenna of some embodiments of the present disclosure
  • FIG. 2 is a circuit diagram of a multiplex antenna of some embodiments of the present disclosure
  • FIG. 3 is a circuit diagram of a multiplex antenna of some embodiments of the present disclosure.
  • FIG. 4 is a circuit diagram of a multiplex antenna of some embodiments of the present disclosure.
  • FIG. 5 is a flow diagram of a method of antenna multiplexing in accordance with some embodiments of the present disclosure.
  • a multiplex antenna provided by an embodiment of the present disclosure is described in detail.
  • FIG. 1 a circuit diagram of a multiplexed antenna including an antenna unit 101 and a signal separation circuit 102 is shown in some embodiments of the present disclosure.
  • the antenna unit 101 is connected to the signal input end 1021 of the signal separation circuit for receiving a superimposed signal, and transmits the received superimposed signal to the signal separation circuit through the signal input end.
  • the multiplexed antenna has the functions of an antenna and a capacitive sensor at the same time, and the signal received by the antenna unit 101 is a superposed signal of the antenna signal and the capacitive sensor signal.
  • the antenna unit 101 inputs the received superimposed signal to the signal separation circuit through the signal input terminal of the signal separation circuit.
  • the signal separation circuit 102 is configured to separate the superimposed signal into an antenna signal and a capacitive sensor signal.
  • the operating frequency range of the antenna unit of the mobile terminal is 0.7 Ghz-3Ghz, and the operating frequency of the capacitive sensor is less than 10 Mhz, and the operating frequency of the antenna unit and the operating frequency of the capacitive sensor are largely different. Therefore, after receiving the superimposed signal, the signal separation circuit can separate the superimposed signal into an antenna signal and a capacitive sensor signal according to the operating frequency of the antenna unit and the operating frequency of the capacitive sensor.
  • the first output end 1022 of the signal separation circuit 102 is connected to the antenna signal receiving end 103 for inputting the separated antenna signal to the antenna signal receiving end 103.
  • the signal separation circuit extracts the antenna signal from the superimposed signal, and inputs the antenna signal from the first output end 1022 to the antenna signal receiving end 103 to implement transmission of the antenna signal.
  • the second output terminal 1023 of the signal separation circuit 102 is connected to the capacitive sensor signal receiving end 104 for inputting the separated capacitive sensor signal into the capacitive sensor signal receiving end 104.
  • the signal separation circuit extracts the capacitive sensor signal from the superimposed signal, and inputs the capacitive sensor signal from the second output terminal 1023 to the capacitive sensor signal receiving end 104 to realize the transmission of the capacitive sensor signal.
  • the multiplex antenna in the embodiment of the present disclosure includes an antenna unit and a signal separation circuit; the antenna unit is configured to receive the superposed signal, and transmit the received superimposed signal to the signal separation circuit; the signal separation circuit is configured to superimpose the signal.
  • the antenna signal and the capacitive sensor signal are separated, and the separated antenna signal is input to the antenna signal receiving end, and the separated capacitive sensor signal is input to the capacitive sensor signal receiving end.
  • the multiplexed antenna in the embodiment of the present disclosure can simultaneously implement the functions of the antenna unit and the capacitive sensor. Since the antenna unit and the capacitive sensor are multiplexed, the occupied space is small and the cost is saved.
  • the multiplex antenna includes an antenna unit 101 and a signal separation circuit 102.
  • the signal separation circuit includes a high pass filter 1025 and a low pass filter 1026, see FIG.
  • An input end of the high-pass filter 1025 is connected to the antenna unit 101, and an output end of the high-pass filter 1025 is connected to the antenna signal receiving end 103 for extracting an antenna signal in the superposed signal, so that the antenna The signal passes, and the capacitive sensor signal in the superimposed signal is filtered out.
  • the operating frequency range of the antenna signal is 0.7 Ghz-3Ghz
  • the operating frequency of the capacitive sensor is less than 10 Mhz, so the antenna signal passes after the superimposed signal enters the high-pass filter, and the capacitive sensor signal is filtered to extract the superposition.
  • the antenna signal in the signal since the operating frequency range of the antenna signal is 0.7 Ghz-3Ghz, the operating frequency of the capacitive sensor is less than 10 Mhz, so the antenna signal passes after the superimposed signal enters the high-pass filter, and the capacitive sensor signal is filtered to extract the superposition.
  • the antenna signal in the signal since the operating frequency range of the antenna signal is 0.7 Ghz-3Ghz, the operating frequency of the capacitive sensor is less than 10 Mhz, so the antenna signal passes after the superimposed signal enters the high-pass filter, and the capacitive sensor signal is filtered to extract the superposition.
  • the antenna signal in the signal since the operating frequency range of the antenna signal is 0.7 Ghz-3G
  • An input end of the low-pass filter 1026 is connected to the antenna unit 101, and an output end of the low-pass filter 1026 is connected to the capacitive sensor signal receiving end 104 for extracting a capacitive sensor signal in the superimposed signal. Passing the capacitive sensor signal causes the antenna signal in the superimposed signal to be filtered out.
  • the operating frequency of the capacitive sensor is less than 10 Mhz, so after the superimposed signal enters the low-pass filter, the capacitive sensor signal passes, and the antenna signal is filtered out, thereby extracting The capacitive sensor signal in the superimposed signal.
  • the high pass filter 1025 includes a first capacitor C1 and a first inductor L1, as shown in FIG.
  • One end of the first capacitor C1 is connected to the antenna unit 101, and the other end of the first capacitor C1 is connected to the antenna signal receiving end 103 and the first inductor L1;
  • One end of the first inductor L1 is connected to the antenna signal receiving end 103 and the first capacitor C1, and the other end of the first inductor L1 is grounded.
  • the capacitance value of the first capacitor C1 in the high-pass filter 1025 can be selected as 33pf, and the inductance value of the first inductor L1 can be selected as 100nH.
  • the capacitance value of the first capacitor C1 and the inductance value of the first inductor L1 may also be selected from other values.
  • the capacitance value and the inductance value are not limited in detail in the embodiments of the present disclosure, and may be selected according to actual conditions.
  • the low pass filter 1026 includes a second capacitor C2 and a second inductor L2, as shown in FIG.
  • One end of the second inductor L2 is connected to the antenna unit 101, and the other end of the second inductor L2 is connected to the capacitive sensor signal receiving end 104 and the second capacitor C2;
  • One end of the second capacitor C2 is connected to the capacitive sensor signal receiving end 104 and the second inductor L2, and the other end of the second capacitor C2 is grounded.
  • the capacitance value of the second capacitor C2 in the low-pass filter 1026 can be selected as 33pf, and the inductance value of the second inductor L2 can be selected as 100nH.
  • Other values may be selected for the capacitance value of the second capacitor C2 and the inductance value of the second inductor L2.
  • the capacitor value and the inductor value are not limited in detail in the embodiments of the present disclosure, and may be selected according to actual conditions.
  • the multiplexing antenna further includes a signal gating circuit 105, as shown in FIG.
  • An input end of the signal gating circuit 105 is connected to the antenna unit 101, an output end of the signal gating circuit 105 is grounded, and the signal gating circuit is configured to input an antenna signal in the superimposed signal to a ground end. Grounding the antenna unit.
  • the grounding manner of the antenna unit 101 can be grounded through a signal strobe circuit, for example, an IFA (Inverted-F Antenna) antenna structure, that is, an inverted F antenna.
  • a signal strobe circuit for example, an IFA (Inverted-F Antenna) antenna structure, that is, an inverted F antenna.
  • IFA Inverted-F Antenna
  • Other grounding methods are also possible.
  • an antenna unit 101 having two branches is used.
  • the two branches are a grounding branch 1011 and a coupling branch 1012, respectively.
  • the grounding branch 1011 grounds the antenna unit 101
  • the coupling branch 1012 is capacitively coupled to the grounding branch 1011 through the slot to transmit and radiate the antenna signal.
  • the coupling branch 1012 is not only a part of the antenna unit 1011 but also functions as a capacitive sensor.
  • the type of the antenna is not limited in detail in the embodiment of the present disclosure, and may be selected according to actual conditions.
  • the signal gating circuit 105 is configured by a third capacitor C3 to form a gating filter
  • One end of the third capacitor C3 is connected to the antenna unit 101, and the other end of the third capacitor C3 is grounded.
  • the capacitance value of the third capacitor C3 in the signal strobe circuit 105 can be selected as 33pf, and other capacitor values can also be selected.
  • the capacitor value in the embodiment of the present disclosure is not limited in detail, and can be selected according to actual conditions.
  • the multiplex antenna in the embodiment of the present disclosure includes an antenna unit and a signal separation circuit; the signal separation circuit includes a high-pass filter for extracting an antenna signal and a low-pass filter for extracting a capacitive sensor signal.
  • the multiplexed antenna in the embodiment of the present disclosure can separate the superimposed signal into an antenna signal and a capacitive sensor signal, and realize the functions of the antenna unit and the capacitive sensor. Since the antenna unit and the capacitive sensor are multiplexed, the occupied space is small, and the cost is saved. .
  • FIG. 5 there is shown a flow diagram of a method of antenna multiplexing in some embodiments of the present disclosure, applied to the multiplexed antenna described in the above embodiments, the method comprising steps 201 and 202.
  • Step 201 Receive a superposition signal of an antenna signal and a capacitance sensor signal.
  • the multiplexing antenna includes an antenna unit and a signal separation circuit.
  • the antenna unit is configured to receive a signal superimposed by the antenna signal and the capacitive sensor signal, and transmit the superimposed signal to the signal separation circuit.
  • the antenna unit inputs the antenna signal in the superposed signal to the ground end to ground the antenna unit in the multiplexed antenna.
  • the antenna unit can be grounded through the signal strobe circuit, and the signal is selected by the power-carrying circuit capacitor, so that the high-frequency antenna signal can be turned on, and the low-frequency capacitive sensor signal exhibits a small capacitance or an open circuit characteristic, thereby grounding the antenna unit. It is also possible to divide the antenna unit into a ground branch and a coupling branch, and ground the ground branch.
  • the type of the antenna is not limited in detail in the embodiment of the present disclosure, and may be selected according to actual conditions.
  • Step 202 Extract the antenna signal and the capacitive sensor signal from the superposed signals according to operating frequencies of the antenna unit and the capacitive sensor in the multiplexed antenna.
  • the signal separation circuit receives the superimposed signal input by the antenna unit. Since the operating frequency range of the antenna signal is 0.7Ghz-3Ghz, the operating frequency of the capacitive sensor is less than 10Mhz, so the antenna signal and the capacitive sensor signal can be respectively extracted from the superposed signals according to the operating frequencies of the antenna unit and the capacitive sensor.
  • extracting the antenna signal in the superposed signal by a high-pass filter passing an antenna signal to filter a capacitive sensor signal; and extracting, by a low-pass filter, the capacitive sensor signal in the superimposed signal, The capacitive sensor signal is passed to filter the antenna signal.
  • Both the high-pass filter and the low-pass filter are composed of a capacitor and an inductor.
  • the capacitance value can be selected from 33 pf, and the inductance value can be selected from 100 nH. This embodiment of the present disclosure does not limit the details, and can be selected according to actual conditions.
  • the signal separation circuit extracts the antenna signal from the superimposed signal, and inputs the antenna signal to the antenna signal receiving end, thereby achieving the function of receiving the antenna signal.
  • the signal separation circuit extracts the capacitive sensor signal from the superimposed signal, and inputs the capacitive sensor signal to the signal receiving end of the capacitive sensor, thereby achieving the function of receiving the capacitive sensor signal.
  • the superposed signal of the antenna receiving antenna signal and the capacitive sensor signal is multiplexed; and the operating frequency of the antenna unit and the capacitive sensor in the multiplexed antenna are respectively extracted from the superposed signal.
  • the antenna signal and the capacitive sensor signal can simultaneously implement the functions of the antenna unit and the capacitive sensor. Since the antenna unit and the capacitive sensor are multiplexed, the occupied space is small and the cost is saved.
  • the scheme of antenna multiplexing provided herein is not inherently related to any particular computer, virtual system, or other device.
  • Various general purpose systems can also be used with the teaching based on the teachings herein. From the above description, it is apparent that the structure required to construct the system having the presently disclosed aspect is apparent.
  • the present disclosure is not directed to any particular programming language. It is to be understood that the subject matter of the present disclosure, which is described herein, may be described in a particular language.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the antenna multiplexing of the present disclosure may be embodied in the form of a software product in essence or in part of the related art, and the computer software product is stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本公开提供了一种复用天线和天线复用的方法。复用天线包括天线单元、信号分离电路；天线单元连接信号分离电路的信号输入端，用于接收叠加信号，并将接收到的叠加信号通过信号输入端传输至信号分离电路；信号分离电路用于将叠加信号分离为天线信号和电容传感器信号。天线复用的方法包括：接收天线信号和电容传感器信号的叠加信号；根据复用天线中的天线单元和电容传感器的工作频率，从叠加信号中分别提取出天线信号和电容传感器信号。

Description

复用天线和天线复用的方法
相关申请的交叉引用
本申请主张在2017年2月28日在中国提交的中国专利申请No.201710114963.8的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种复用天线和天线复用的方法。
背景技术
移动终端中电容传感器的常用应用场景包括：(1)通过电容传感器检测人体距离，当人体靠近移动终端时，降低天线的发射功率，减小对人体的影响；(2)通过电容传感器检测左手持或者右手持，以配合移动终端界面的左右手模式的切换。
相关技术中，电容传感器与天线一般是独立且分离的模块或组装在一起的模组，两个单元设置在移动终端内部占用空间多、成本高、而且两个单元之间的距离很近，电容传感器会显著影响天线的性能。
发明内容
本公开实施例提供一种复用天线和天线复用的方法，以解决天线和电容传感器两个独立单元占用空间多的问题。
依据本公开实施例的第一方面，提供了一种复用天线，所述复用天线包括天线单元、信号分离电路；
所述天线单元连接所述信号分离电路的信号输入端，用于接收叠加信号，并将接收到的叠加信号通过所述信号输入端传输至所述信号分离电路；
所述信号分离电路用于将所述叠加信号分离为天线信号和电容传感器信号；
所述信号分离电路的第一输出端连接天线信号接收端，用于将分离得到的天线信号输入所述天线信号接收端；
所述信号分离电路的第二输出端连接电容传感器信号接收端，用于将分离得到的电容传感器信号输入所述电容传感器信号接收端。
依据本公开实施例的另一方面，提供了一种天线复用的方法，所述方法包括：
接收天线信号和电容传感器信号的叠加信号；
根据所述复用天线中的天线单元和电容传感器的工作频率，从所述叠加信号中分别提取出所述天线信号和所述电容传感器信号
依据本公开实施例，复用天线包括天线单元、信号分离电路；天线单元用于接收叠加信号，并将接收到的叠加信号传输至信号分离电路；信号分离电路用于将叠加信号分离为天线信号和电容传感器信号，并将分离得到的天线信号输入天线信号接收端，将分离得到的电容传感器信号输入电容传感器信号接收端。
上述说明仅是本公开技术方案的概述，为了能够更清楚了解本公开的技术手段，而可依照说明书的内容予以实施，并且为了让本公开的上述和其它目的、特征和优点能够更明显易懂，以下特举本公开的具体实施方式。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本公开的一些实施例的一种复用天线的电路示意图；
图2是本公开的一些实施例的一种复用天线的电路示意图；
图3是本公开的一些实施例的一种复用天线的电路示意图；
图4是本公开的一些实施例的一种复用天线的电路示意图；
图5是本公开的一些实施例的一种天线复用的方法的流程图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行 清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
详细介绍本公开的实施例提供的一种复用天线。
参照图1，示出了本公开的一些实施例中的一种复用天线的电路示意图，所述复用天线包括天线单元101和信号分离电路102。
所述天线单元101连接所述信号分离电路的信号输入端1021，用于接收叠加信号，并将接收到的叠加信号通过所述信号输入端传输至所述信号分离电路。
本实施例中，复用天线同时具有天线和电容传感器的功能，天线单元101接收的信号是天线信号和电容传感器信号的叠加信号。天线单元101将接收到的叠加信号通过信号分离电路的信号输入端输入信号分离电路。
所述信号分离电路102用于将所述叠加信号分离为天线信号和电容传感器信号。
本实施例中，移动终端的天线单元的工作频率范围是0.7Ghz-3Ghz，电容传感器的工作频率小于10Mhz，天线单元的工作频率和电容传感器的工作频率差异较大。因此，信号分离电路接收叠加信号后，可以根据天线单元的工作频率和电容传感器的工作频率将叠加信号分离为天线信号和电容传感器信号。
所述信号分离电路102的第一输出端1022连接天线信号接收端103，用于将分离得到的天线信号输入所述天线信号接收端103。
本实施例中，信号分离电路从叠加信号中提取出天线信号，将天线信号从第一输出端1022输入至天线信号接收端103，实现天线信号的传输。
所述信号分离电路102的第二输出端1023连接所述电容传感器信号接收端104，用于将分离得到的电容传感器信号输入所述电容传感器信号接收端104。
本实施例中，信号分离电路从叠加信号中提取出电容传感器信号，将电容传感器信号从第二输出端1023输入至电容传感器信号接收端104，实现电容传感器信号的传输。
综上所述，本公开实施例中复用天线包括天线单元、信号分离电路；天线单元用于接收叠加信号，并将接收到的叠加信号传输至信号分离电路；信号分离电路用于将叠加信号分离为天线信号和电容传感器信号，并将分离得到的天线信号输入天线信号接收端，将分离得到的电容传感器信号输入电容传感器信号接收端。本公开实施例中的复用天线可以同时实现天线单元和电容传感器的功能，由于将天线单元和电容传感器复用，占用的空间小，节约成本。
详细介绍本公开的一些实施例提供的一种复用天线，所述复用天线部署在移动终端。所述复用天线包括天线单元101和信号分离电路102。
可选地，所述信号分离电路包括高通滤波器1025和低通滤波器1026，见图2。
所述高通滤波器1025的输入端连接所述天线单元101，所述高通滤波器1025的输出端连接所述天线信号接收端103，用于提取所述叠加信号中的天线信号，使所述天线信号通过，而使所述叠加信号中的电容传感器信号被滤除。
本实施例中，由于天线信号的工作频率范围是0.7Ghz-3Ghz，电容传感器的工作频率小于10Mhz，因此叠加信号进入高通滤波器后天线信号通过，而电容传感器信号被滤除，从而提取出叠加信号中的天线信号。
所述低通滤波器1026的输入端连接所述天线单元101，所述低通滤波器1026的输出端连接所述电容传感器信号接收端104，用于提取所述叠加信号中的电容传感器信号，使所述电容传感器信号通过，而使所述叠加信号中的天线信号被滤除。
本实施例中，由于天线信号的工作频率范围是0.7Ghz-3Ghz，电容传感器的工作频率小于10Mhz，因此叠加信号进入低通滤波器后电容传感器信号通过，而天线信号被滤除，从而提取出叠加信号中的电容传感器信号。
可选地，所述高通滤波器1025包括第一电容C1和第一电感L1，见图3。
所述第一电容C1的一端连接所述天线单元101，所述第一电容C1的另一端连接所述天线信号接收端103和所述第一电感L1；
所述第一电感L1的一端连接所述天线信号接收端103和所述第一电容 C1，所述第一电感L1另一端接地。
本实施例中，高通滤波器1025中第一电容C1的电容值可以选用33pf，第一电感L1的电感值可以选用100nH。第一电容C1的电容值和第一电感L1的电感值也可以选用其他值，本公开实施例对电容值和电感值不作详细限定，可以根据实际情况进行选取。
可选地，所述低通滤波器1026包括第二电容C2和第二电感L2，见图3。
所述第二电感L2的一端连接所述天线单元101，所述第二电感L2的另一端连接所述电容传感器信号接收端104和所述第二电容C2；
所述第二电容C2的一端连接所述电容传感器信号接收端104和所述第二电感L2，所述第二电容C2的另一端接地。
本实施例中，低通滤波器1026中第二电容C2的电容值可以选用33pf，第二电感L2的电感值可以选用100nH。第二电容C2的电容值和第二电感L2的电感值也可以选用其他值，本公开实施例对电容值和电感值不作详细限定，可以根据实际情况进行选取。
可选地，所述复用天线还包括信号选通电路105，见图2。
所述信号选通电路105的输入端连接所述天线单元101，所述信号选通电路105的输出端接地，所述信号选通电路用于将所述叠加信号中的天线信号输入接地端，使所述天线单元接地。
本实施例中，天线单元101接地的方式可以通过信号选通电路接地，例如选用IFA(Inverted-F Antenna)天线结构，即倒F型天线。也可以选用其他接地方式，例如，采用具有两个分支的天线单元101，两个分支分别为接地分支1011和耦合分支1012，见图3。接地分支1011使天线单元101接地，耦合分支1012通过缝隙与接地分支1011产生容性耦合关系，可传输和辐射天线信号。并且，耦合分支1012不仅是天线单元1011的一部分，也用作电容传感器。本公开实施例对天线的类型不作详细限定，可以根据实际情况进行选取。
可选地，所述信号选通电路105由第三电容C3构成选通滤波器；
所述第三电容C3的一端连接天线单元101，所述第三电容C3的另一端接地。
本实施例中，信号选通电路105中第三电容C3的电容值可以选用33pf，也可以选用其他电容值，本公开实施例对电容值不作详细限定，可以根据实际情况进行选取。
综上所述，本公开实施例中复用天线包括天线单元、信号分离电路；信号分离电路包括用于提取天线信号的高通滤波器和用于提取电容传感器信号的低通滤波器。本公开实施例中的复用天线可以将叠加信号分离为天线信号和电容传感器信号，同时实现天线单元和电容传感器的功能，由于将天线单元和电容传感器复用，占用的空间小，并且节约成本。
参照图5，示出了本公开的一些实施例中的一种天线复用的方法的流程图，应用于上述实施例所述的复用天线，所述方法包括步骤201和202。
步骤201，接收天线信号和电容传感器信号的叠加信号。
本实施例中，复用天线包括天线单元和信号分离电路。其中天线单元用于接收天线信号与电容传感器信号叠加的信号，将叠加信号传输至信号分离电路。
可选地，天线单元接收叠加信号后，将所述叠加信号中的所述天线信号输入接地端，以使所述复用天线中的天线单元接地。天线单元可以通过信号选通电路接地，信号选通电路由电容构成，可以使高频率的天线信号导通，而低频率的电容传感器信号呈现小电容或者开路特性，从而使天线单元接地。也可以将天线单元分为接地分支和耦合分支，由接地分支接地。本公开实施例对天线的类型不作详细限定，可以根据实际情况进行选取。
步骤202，根据所述复用天线中的天线单元和电容传感器的工作频率，从所述叠加信号中分别提取出所述天线信号和所述电容传感器信号。
本实施例中，信号分离电路接收天线单元输入的叠加信号。由于天线信号的工作频率范围是0.7Ghz-3Ghz，电容传感器的工作频率小于10Mhz，因此可以根据天线单元和电容传感器的工作频率，从叠加信号中分别提取出天线信号和电容传感器信号。
可选地，通过高通滤波器提取所述叠加信号中的所述天线信号，使天线信号通过而将电容传感器信号滤除；通过低通滤波器提取所述叠加信号中的所述电容传感器信号，使电容传感器信号通过而将天线信号滤除。高通滤波 器和低通滤波器均由电容和电感组成，电容值可以选用33pf，电感值可以选用100nH，本公开实施例对此不作详细限定，可以根据实际情况进行选取。
信号分离电路从叠加信号中提取出天线信号，并将天线信号输入天线信号接收端，至此实现了接收天线信号的功能。信号分离电路从叠加信号中提取出电容传感器信号，并将电容传感器信号输入电容传感器信号接收端，至此实现了接收电容传感器信号的功能。
综上所述，本公开实施例中复用天线接收天线信号和电容传感器信号的叠加信号；根据所述复用天线中的天线单元和电容传感器的工作频率，从所述叠加信号中分别提取出所述天线信号和所述电容传感器信号。本公开实施例中的复用天线可以同时实现天线单元和电容传感器的功能，由于将天线单元和电容传感器复用，占用的空间小，并且节约成本。
需要说明的是，对于前述的方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本公开并不受所描述的动作顺序的限制，因为依据本公开，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作并不一定是本公开所必需的。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
本领域技术人员易于想到的是：上述各个实施例的任意组合应用都是可行的，故上述各个实施例之间的任意组合都是本公开的实施方案，但是由于篇幅限制，本说明书在此就不一一详述了。
在此提供的天线复用的方案不与任何特定计算机、虚拟系统或者其它设备固有相关。各种通用系统也可以与基于在此的示教一起使用。根据上面的描述，构造具有本公开方案的系统所要求的结构是显而易见的。此外，本公开也不针对任何特定编程语言。应当明白，可以利用各种编程语言实现在此描述的本公开的内容，并且上面对特定语言所做的描述是为了披露本公开的最佳实施方式。
在此处所提供的说明书中，说明了大量具体细节。然而，能够理解，本 公开的实施例可以在没有这些具体细节的情况下实践。在一些实例中，并未详细示出公知的方法、结构和技术，以便不模糊对本说明书的理解。
类似地，应当理解，为了精简本公开并帮助理解各个发明方面中的一个或多个，在上面对本公开的示例性实施例的描述中，本公开的各个特征有时被一起分组到单个实施例、图、或者对其的描述中。然而，并不应将该公开的方法解释成反映如下意图：即所要求保护的本公开要求比在每个权利要求中所明确记载的特征更多的特征。更确切地说，如权利要求书所反映的那样，发明方面在于少于前面公开的单个实施例的所有特征。因此，遵循具体实施方式的权利要求书由此明确地并入该具体实施方式，其中每个权利要求本身都作为本公开的单独实施例。
本领域普通技术人员可以意识到，结合本公开实施例中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的天线复用的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (9)

  1. 一种复用天线，包括天线单元和信号分离电路；其中，
    所述天线单元连接所述信号分离电路的信号输入端，用于接收叠加信号，并将接收到的叠加信号通过所述信号输入端传输至所述信号分离电路；
    所述信号分离电路用于将所述叠加信号分离为天线信号和电容传感器信号；
    所述信号分离电路的第一输出端连接天线信号接收端，用于将分离得到的天线信号输入所述天线信号接收端；
    所述信号分离电路的第二输出端连接电容传感器信号接收端，用于将分离得到的电容传感器信号输入所述电容传感器信号接收端。
  2. 根据权利要求1所述的复用天线，其中所述信号分离电路包括高通滤波器和低通滤波器；
    所述高通滤波器的输入端连接所述天线单元，所述高通滤波器的输出端连接所述天线信号接收端，用于提取所述叠加信号中的天线信号，使所述天线信号通过，而使所述叠加信号中的电容传感器信号被滤除；
    所述低通滤波器的输入端连接所述天线单元，所述低通滤波器的输出端连接所述电容传感器信号接收端，用于提取所述叠加信号中的电容传感器信号，使所述电容传感器信号通过，而使所述叠加信号中的天线信号被滤除。
  3. 根据权利要求2所述的复用天线，其中所述高通滤波器包括第一电容和第一电感；
    所述第一电容的一端连接所述天线单元，所述第一电容的另一端连接所述天线信号接收端和所述第一电感；
    所述第一电感的一端连接所述天线信号接收端和所述第一电容，所述第一电感的另一端接地。
  4. 根据权利要求2所述的复用天线，其中所述低通滤波器包括第二电容和第二电感；
    所述第二电感的一端连接所述天线单元，所述第二电感的另一端连接所述电容传感器信号接收端和所述第二电容；
    所述第二电容的一端连接所述电容传感器信号接收端和所述第二电感，所述第二电容的另一端接地。
  5. 根据权利要求1所述的复用天线，其中所述复用天线还包括信号选通电路；
    所述信号选通电路的输入端连接所述天线单元，所述信号选通电路的输出端接地，所述信号选通电路用于将所述叠加信号中的天线信号输入接地端，使所述天线单元接地。
  6. 根据权利要求5所述的复用天线，其中所述信号选通电路由第三电容构成选通滤波器；
    所述第三电容的一端连接天线单元，所述第三电容的另一端接地。
  7. 一种天线复用的方法，应用于权利要求1-6中任一项所述的复用天线，包括：
    接收天线信号和电容传感器信号的叠加信号；
    根据所述复用天线中的天线单元和电容传感器的工作频率，从所述叠加信号中分别提取出所述天线信号和所述电容传感器信号。
  8. 根据权利要求7所述的方法，其中，所述根据所述复用天线中的天线单元和电容传感器的工作频率，从所述叠加信号中分别提取出所述天线信号和所述电容传感器信号包括：
    通过高通滤波器提取所述叠加信号中的所述天线信号；
    通过低通滤波器提取所述叠加信号中的所述电容传感器信号。
  9. 根据权利要求7所述的方法，其中，在所述接收天线信号和电容传感器信号的叠加信号之后，所述方法还包括：
    通过信号选通电路将所述叠加信号中的所述天线信号输入接地端，以使所述复用天线中的天线单元接地。
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