WO2013166777A1 - 一种智能开关移动终端天线的方法及相应移动终端 - Google Patents

一种智能开关移动终端天线的方法及相应移动终端 Download PDF

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Publication number
WO2013166777A1
WO2013166777A1 PCT/CN2012/078632 CN2012078632W WO2013166777A1 WO 2013166777 A1 WO2013166777 A1 WO 2013166777A1 CN 2012078632 W CN2012078632 W CN 2012078632W WO 2013166777 A1 WO2013166777 A1 WO 2013166777A1
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WO
WIPO (PCT)
Prior art keywords
unit
parasitic
mobile terminal
antenna
radiator
Prior art date
Application number
PCT/CN2012/078632
Other languages
English (en)
French (fr)
Inventor
朱大龙
胡易木
袁爱国
徐金禄
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP12876545.0A priority Critical patent/EP2849349A4/en
Priority to KR1020147034052A priority patent/KR20150013694A/ko
Priority to MX2014013713A priority patent/MX355901B/es
Priority to US14/400,240 priority patent/US9439151B2/en
Publication of WO2013166777A1 publication Critical patent/WO2013166777A1/zh
Priority to HK15103004.1A priority patent/HK1202717A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • 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
    • H04B1/40—Circuits
    • 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
    • H01Q1/24—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
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/005—Patch antenna using one or more coplanar parasitic elements
    • 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
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
    • 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
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a method for intelligently switching a mobile terminal antenna and a corresponding mobile terminal.
  • the antenna design requirements of multi-mode mobile terminals including 2G, 3G and 4G technologies will be higher and higher in the future, and one antenna needs to be completed.
  • the multi-band multi-band ultra-wideband wireless communication function is adopted, and therefore, the design technical requirements of the mobile terminal antenna are also getting higher and higher.
  • the technical problem to be solved by the embodiments of the present invention is to provide a method for intelligently switching a mobile terminal antenna and a corresponding mobile terminal to improve antenna performance.
  • the following technical solutions are used in the embodiment of the present invention:
  • a mobile terminal for a smart switching antenna comprising: a detecting unit, an antenna control unit and an antenna radiating unit, wherein the antenna radiating unit comprises a main feed unit radiator and a parasitic unit radiator, wherein: the detecting unit is configured to: The current working frequency band of the mobile terminal is detected, and the detection result is sent to the antenna control unit;
  • the antenna control unit is configured to: receive a detection result sent by the detecting unit, and change an impedance characteristic of the parasitic unit radiator according to a preset relationship between the antenna radiating unit and a current working frequency band;
  • the parasitic unit radiator is configured to: change impedance characteristics according to control of the antenna control unit.
  • the detecting unit is further configured to: detect a current surrounding environment of the mobile terminal, and send a detection result to the antenna control unit;
  • the antenna control unit is further configured to: change the corresponding relationship between the antenna radiating unit and the environmental condition, or the corresponding relationship between the antenna radiating unit, the environmental condition, and the current working frequency band, which are preset Impedance characteristics of the parasitic unit radiator.
  • the detecting unit is configured to detect the current surrounding environment of the mobile terminal according to one or more of the following manners:
  • the antenna control unit is configured to change an impedance characteristic of the parasitic unit radiator in the following manner: sending an instruction to the parasitic unit radiator in the antenna radiating unit to open the parasitic unit radiator One or more parasitic elements, and/or one or more parasitic elements in the parasitic unit radiator;
  • the parasitic unit radiator is arranged to change impedance characteristics according to control of the antenna control unit in the following manner: opening the parasitic unit radiation according to an instruction sent by the antenna control unit One or more parasitic elements in the body, and/or one or more parasitic elements in the parasitic unit radiator.
  • a mobile terminal for a smart switching antenna comprising: a detecting unit, an antenna control unit and an antenna radiating unit, wherein the antenna radiating unit comprises a main feed unit radiator and a parasitic unit radiator, wherein: the detecting unit is configured to: The current surrounding environment of the mobile terminal is detected, and the detection result is sent to the antenna control unit;
  • the antenna control unit is configured to: receive a detection result sent by the detecting unit, and change an impedance characteristic of the parasitic unit radiator according to a preset relationship between the antenna radiating unit and an environmental condition;
  • the parasitic unit radiator is configured to: change impedance characteristics according to control of the antenna control unit.
  • the detecting unit is configured to detect the current surrounding environment of the mobile terminal according to one or more of the following manners:
  • the antenna control unit is configured to change an impedance characteristic of the parasitic unit radiator in the following manner: sending an instruction to the parasitic unit radiator in the antenna radiating unit to open the parasitic unit radiator One or more parasitic elements, and/or one or more parasitic elements in the parasitic unit radiator;
  • the parasitic unit radiator is configured to change the impedance characteristic according to the control of the antenna control unit in the following manner, including: opening one or more parasitic objects in the parasitic unit radiator according to an instruction sent by the antenna control unit Units, and/or turning off one or more of the parasitic unit radiators.
  • the impedance characteristic of the parasitic unit radiator is changed according to a correspondence relationship between the antenna radiating unit and the current operating frequency band set in advance.
  • the step of changing the impedance characteristic of the parasitic unit radiator includes:
  • One or more parasitic elements in the parasitic unit radiator are turned off.
  • a method for intelligently switching a mobile terminal antenna wherein the antenna radiating unit of the mobile terminal comprises a main feed unit radiator and a parasitic unit radiator, the method comprising:
  • the impedance characteristic of the radiating body of the parasitic unit is changed according to a correspondence relationship between the antenna radiating unit and the environmental condition set in advance.
  • the step of detecting the current surrounding environment of the mobile terminal includes one or more of the following detections:
  • the step of changing the impedance characteristic of the parasitic unit radiator includes:
  • One or more parasitic elements in the parasitic unit radiator are turned off.
  • a method for intelligently switching a mobile terminal antenna wherein the antenna radiating unit of the mobile terminal comprises a main feed unit radiator and a parasitic unit radiator, the method comprising: Detecting a current working frequency band of the mobile terminal and a current surrounding environment;
  • the impedance characteristic of the parasitic unit radiator is changed according to a corresponding relationship between the antenna radiating unit, the environmental condition, and the current operating frequency band set in advance.
  • the step of detecting the current surrounding environment of the mobile terminal comprises performing one or more of the following detections:
  • the step of changing the impedance characteristic of the parasitic unit radiator includes:
  • One or more parasitic elements in the parasitic unit radiator are turned off.
  • the method and the terminal according to the embodiment of the present invention control the antenna radiating unit by the antenna control unit according to the working frequency band of the mobile terminal and/or the environment state, so that the antenna works in an optimal state, thereby improving the communication of the air interface of the wireless communication system. quality.
  • the antenna performance of the current frequency band can be optimized according to the current working frequency band of the mobile terminal, and the design problem that the multi-mode multi-mode mobile terminal antenna has high requirements on the frequency bandwidth is solved.
  • the antenna performance when the human body approaches is improved, the antenna performance is improved, and the call quality and data service application are ensured without increasing the path loss of the radio frequency main path.
  • FIG. 1 is a schematic structural diagram of a smart switch antenna according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural diagram of another smart switch antenna according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of a smart switch antenna according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic diagram of an antenna radiation unit in a free space state according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic diagram of a smart switch antenna in a human body approaching state according to Embodiment 2 of the present invention
  • Figure 6 is a simulation diagram of antenna performance in a free space state
  • Figure 7 is a simulation diagram of antenna performance in a human body approaching state
  • FIG. 8 is a simulation diagram of antenna performance after using a smart switch antenna in a human body approaching state
  • FIG. 9 is a flowchart of Embodiment 3 of the present invention.
  • FIG. 10 is a flowchart of Embodiment 4 of the present invention.
  • Figure 11 is a flow chart of Embodiment 5 of the present invention.
  • the detection unit 11 includes an antenna unit 12, an antenna control unit 12, and an antenna radiating unit 13, and the antenna radiating unit 13 includes a main feed.
  • the unit radiator 131 and the parasitic unit radiator 132, the parasitic unit radiator 132 includes one or more parasitic units, wherein:
  • the detecting unit 11 is configured to: detect the current working frequency band of the mobile terminal, and send the detection result to the antenna control unit 12;
  • the antenna control unit 12 is configured to: receive the detection result sent by the detecting unit 11, and change the impedance characteristic of the parasitic element radiator 132 according to the corresponding relationship between the antenna radiating unit 13 and the current working frequency band;
  • the parasitic unit radiator 132 is arranged to change the impedance characteristic in accordance with the control of the antenna control unit 12.
  • the antenna control unit 12 is arranged to change the impedance characteristics of the parasitic unit radiator 132 in the following manner:
  • the antenna control unit 12 sends an instruction to the parasitic unit radiator 132 in the antenna radiating unit 13, turns on one or more parasitic elements in the parasitic unit radiator 132, and/or turns off the parasitic element radiation.
  • One or more parasitic elements in body 132 One or more parasitic elements in body 132.
  • the parasitic unit radiator 132 turns on one or more of the parasitic unit radiators 132 according to an instruction sent from the antenna control unit 12, and/or turns off one or more of the parasitic unit radiators 132.
  • the parasitic element radiator 132 is coupled to the main feed unit radiator 131 to achieve resonance for the purpose of expanding the bandwidth of the antenna.
  • the most suitable parasitic element radiator 132 is selected according to the frequency band in which the terminal operates, that is, the antenna unit 12 controls the parasitic unit radiator 132.
  • the opening and/or closing of the parasitic unit changes the form of the antenna radiating element, thereby changing the operating frequency band of the antenna, thereby improving the performance of the antenna in different frequency bands.
  • the above correspondence may be stored in the mobile terminal in the form of a list.
  • the human body's influence on the antenna is mainly reflected in: Due to human intervention, such as human or human intervention, the resonant frequency of the antenna will shift to the low frequency point, which directly affects the passive efficiency of the antenna and the antenna operation. Frequency band. Therefore, by increasing the detection unit 11 for the surrounding environment (mainly the human body) and controlling the corresponding parasitic unit according to the detection result, the PATTERN of the antenna can be automatically adjusted according to the surrounding human body approach, and the performance of the antenna can be improved.
  • the detecting unit 11 is further configured to detect the current surrounding environment of the mobile terminal, and send the detection result to the antenna control unit 12.
  • the detecting unit 11 includes The working frequency band detecting unit 111 configured to detect the working frequency band of the terminal further includes an environment detecting unit 112 configured to detect the current surrounding environment of the terminal.
  • the antenna control unit 12 is further configured to: change the parasitic unit according to the corresponding relationship between the antenna radiating unit 13 and the environmental condition, or the corresponding relationship between the antenna radiating unit 13, the environmental condition, and the current working frequency band.
  • the impedance characteristics of the radiator 132 is further configured to detect the current surrounding environment of the mobile terminal, and send the detection result to the antenna control unit 12.
  • the antenna performance of the human body can be improved and the antenna performance can be improved without increasing the path loss of the radio frequency main path. Guarantee call quality and data service applications.
  • the detecting unit 11 detects the current surrounding environment of the mobile terminal, including one or more of the following detections: detecting whether the mobile terminal works in a free space, detecting whether there is human body approaching around the mobile terminal (human head and/or human hand, etc.), detecting movement Whether the terminal is indoors, detecting whether the mobile terminal is outdoors.
  • the opening or closing of one or more parasitic units will respectively correspond to a specific human body approaching state.
  • the present embodiment provides a terminal for improving the performance of an antenna when the human body approaches the antenna.
  • the detection unit 11 includes an antenna control unit 12 and an antenna radiating unit 13, and the antenna radiating unit 13 includes a main feed unit radiator 131.
  • the parasitic unit radiator 132, the parasitic unit radiator 132 includes one or more parasitic units, wherein:
  • the detecting unit 11 is configured to: detect the current working frequency band of the mobile terminal, and send the detection result to the antenna control unit 12;
  • the antenna control unit 12 is configured to: receive the detection result sent by the detection unit 11 , and change the impedance characteristic of the parasitic unit radiator 132 according to the preset relationship between the antenna radiation unit 13 and the current working frequency band;
  • the parasitic unit radiator 132 is arranged to change the impedance characteristic in accordance with the control of the antenna control unit 12.
  • the antenna control unit 12 may control the opening and/or closing of the parasitic elements therein by transmitting an instruction to the parasitic unit radiator 132 in the antenna radiating unit 13.
  • the parasitic unit radiator 132 turns on one or more of the parasitic unit radiators 132 and/or turns off one or more of the parasitic unit radiators 132 in accordance with an instruction transmitted from the antenna control unit 12.
  • the form of the antenna radiating unit 13 is as shown in FIG. 4, and the antenna radiating unit 13 is composed of a main feeding unit radiator 131 and an ungrounded parasitic unit 1321.
  • the mobile terminal environment detecting unit 112 can be implemented by a sensor, for example, including two proximity sensors, configured to detect whether the mobile terminal is close to the human body, and transmit the detection result to the antenna control unit 12.
  • the antenna control unit 12 gates the parasitic unit (for example, the parasitic unit 1321) according to a preset correspondence relationship, and connects it to the ground in the mobile phone PCB (printed circuit board).
  • the antenna radiating unit 13 is composed of a human body, a main feed unit radiator 131 and a grounded parasitic unit 1321, forming a new antenna trace form.
  • the grounding of the parasitic unit 1321 the human influence factor caused by the human body approaching the mobile terminal is reduced, and the resonance point of the antenna is readjusted to an optimal state set in advance. Thereby, the antenna efficiency in the human body close state is improved, and the air interface communication quality of the mobile terminal in the actual application process of the user is improved.
  • Figure 6 is a simulation diagram of the antenna performance of the terminal in a free space state.
  • the antenna operates at two resonance points: 968 MHz and 2.107 GHz, where S11 is an index indicating the characteristics of the antenna, and both ml and m2 are identifiers in the fax process.
  • S11 is an index indicating the characteristics of the antenna
  • ml and m2 are identifiers in the fax process.
  • the Mark point of the antenna resonance the figure shows the original state of the antenna. The deeper the resonance point, the wider the depression, indicating that the better the resonance state of the antenna and the wider the bandwidth.
  • FIG. 8 is a simulation diagram of the antenna performance under the control of the antenna control unit, and the human body, the main feed unit radiator 131 and the parasitic unit radiator 132 are collectively used as the antenna radiation unit 13 by the control of the antenna control unit 12.
  • the meanings of the various parameters in the figure are the same as those in Fig. 6.
  • the icon is shown in the free space state of Fig. 6. After being interfered by the human body (such as a human head or a human hand) (Fig.
  • the method proposed by the embodiment of the present invention can make The antenna is minimized by the influence of human body interference, which is basically consistent with the original state of the antenna, that is, the resonance point of the antenna is pulled back to the original state of 968 MHz and 2.107 GHz, thereby improving the antenna performance under human intervention.
  • human body interference which is basically consistent with the original state of the antenna, that is, the resonance point of the antenna is pulled back to the original state of 968 MHz and 2.107 GHz, thereby improving the antenna performance under human intervention.
  • This embodiment introduces a method for intelligently switching a mobile terminal antenna for the smart antenna structure shown in FIG. 1, as shown in FIG. 9, including the following steps:
  • Step 110 Detect a current working frequency band of the mobile terminal.
  • Step 120 Change the impedance characteristic of the parasitic unit radiator 132 according to a preset correspondence relationship between the antenna radiating unit 13 and the current working frequency band, for example, turn on one or more parasitic units in the parasitic unit radiator 132, and/or turn off the parasitic One or more parasitic elements in the unit radiator 132,
  • This embodiment introduces a method for intelligently switching a mobile terminal antenna for the smart antenna structure shown in FIG. 2, as shown in FIG. 10, including the following steps:
  • Step 210 Detect a current working frequency band of the mobile terminal and a current surrounding environment of the mobile terminal.
  • Step 220 Change an impedance characteristic of the parasitic unit radiator 132 according to a preset relationship between the antenna radiating unit 13, the environmental condition, and the current working frequency band.
  • This embodiment introduces a method for intelligently switching a mobile terminal antenna for the smart antenna structure shown in FIG. 3, as shown in FIG. 11, including the following steps:
  • Step 310 Detect a current surrounding environment of the mobile terminal.
  • Step 320 Change the impedance characteristic of the parasitic unit radiator 132 according to the preset relationship between the antenna radiating unit 13 and the environmental condition.
  • the above technical solution can optimize the antenna performance of the current frequency band according to the current working frequency band of the mobile terminal, and solve the design problem that the multi-mode multi-mode mobile terminal antenna has high frequency bandwidth requirements.
  • the antenna performance when the human body approaches is improved, the antenna performance is improved, and the call quality and data service application are ensured without increasing the path loss of the radio frequency main path. Therefore, the present invention has strong industrial applicability.

Abstract

一种智能开关移动终端天线的方法及相应移动终端，能够提高天线性能。其中一种方法包括：检测终端当前工作频段和周围环境；根据预先设置的天线辐射单元、环境状况及当前工作频段三者的对应关系，改变寄生单元辐射体的阻抗特性。另一种方法是：检测终端当前工作频段；根据预先设置的天线辐射单元与当前工作频段的对应关系，改变寄生单元辐射体的阻抗特性。再一种方法是：检测终端当前周围环境；根据预先设置的天线辐射单元与环境状况的对应关系，改变寄生单元辐射体的阻抗特性。所述终端包括：检测单元、天线控制单元和天线辐射单元。采用上述技术方案，根据终端工作频段和/或环境状态控制天线辐射单元，从而提高无线通信系统空口的通信质量。

Description

一种智能开关移动终端天线的方法及相应移动终端
技术领域
本发明涉及移动通信技术领域， 具体涉及一种智能开关移动终端天线的 方法及相应移动终端。
背景技术
随着 3G时代的到来，移动通信已全面进入 3G时代，移动通信的发展也 进入到一个更加人性化和智能化的时代。特别是随着传感器网络的飞速发展， 人们对移动通信的要求已不仅仅局限于简单的语音通话功能， 多网融合的人 性化和智能化的手机终端是新时期人们对移动终端的最基本的需求。
同时， 随着多模制式智能移动终端的普及， 特别是随着 LTE技术的迅速 发展， 未来包括 2G、 3G和 4G技术的多模移动终端的天线设计要求也越来 越高， 一个天线需要完成集多模多频段的超宽带无线通信功能， 因此， 移动 终端天线的设计技术要求也越来越高。
与此同时， 随着通信技术的普及和数据业务的普及， 人们对通话的质量 要求越来越高， 特别是在使用移动终端过程中人体对天线性能的影响已越来 越受人们关注。 由于移动终端天线很小， 很难实现超宽带， 其谐振频率一般 较窄， 在自由空间状态下尚可满足设计要求， 但当人们在对移动终端进行操 作或者通话时，由于人体是导电体，人体的干预会引起天线谐振频率的偏移， 降低天线的辐射效率， 导致天线性能严重下降， 从而影响通话或数据业务。 目前虽然有相关技术， 但大多是通过调整射频信号主通路和天线之间的匹配 方法来改善， 由此带来的是对射频功放输出功率高求的提高， 从而额外增加 了移动终端系统的热耗， 目前来看尚不是一个最佳的方案。
发明内容
本发明实施例所要解决的技术问题是提供一种智能开关移动终端天线的 方法及相应移动终端， 以提高天线性能。 为解决上述技术问题， 本发明实施例釆用如下技术方案：
一种智能开关天线的移动终端， 包括： 检测单元、 天线控制单元和天线 辐射单元，所述天线辐射单元包括主馈单元辐射体和寄生单元辐射体，其中： 所述检测单元设置成： 对所述移动终端的当前工作频段进行检测， 并向 所述天线控制单元发送检测结果；
所述天线控制单元设置成： 接收所述检测单元发送的检测结果， 根据预 先设置的所述天线辐射单元与当前工作频段的对应关系， 改变所述寄生单元 辐射体的阻抗特性；
所述寄生单元辐射体设置成： 根据所述天线控制单元的控制， 改变阻抗 特性。
可选地， 所述检测单元还设置成： 对所述移动终端的当前周围环境进行 检测， 并向所述天线控制单元发送检测结果；
所述天线控制单元还设置成： 根据预先设置的所述天线辐射单元与环境 状况的对应关系， 或者预先设置的所述天线辐射单元、 环境状况及当前工作 频段三者的对应关系， 改变所述寄生单元辐射体的阻抗特性。
可选地， 所述检测单元设置成按照以下方式中的一种或几种对所述移动 终端的当前周围环境进行检测：
检测所述移动终端是否工作在自由空间；
检测所述移动终端周围是否有人体接近；
检测所述移动终端是否在室内；
检测所述移动终端是否在室外。
可选地， 所述天线控制单元设置成按照以下方式改变所述寄生单元辐射 体的阻抗特性： 向所述天线辐射单元中的所述寄生单元辐射体发送指令， 打 开所述寄生单元辐射体中的一个或多个寄生单元，和 /或关闭所述寄生单元辐 射体中的一个或多个寄生单元；
所述寄生单元辐射体设置成按照以下方式根据所述天线控制单元的控制, 改变阻抗特性： 根据所述天线控制单元发送的指令， 打开所述寄生单元辐射 体中的一个或多个寄生单元，和 /或关闭所述寄生单元辐射体中的一个或多个 寄生单元。
一种智能开关天线的移动终端， 包括： 检测单元、 天线控制单元和天线 辐射单元，所述天线辐射单元包括主馈单元辐射体和寄生单元辐射体，其中： 所述检测单元设置成： 对所述移动终端的当前周围环境进行检测， 并向 所述天线控制单元发送检测结果；
所述天线控制单元设置成： 接收所述检测单元发送的检测结果， 根据预 先设置的所述天线辐射单元与环境状况的对应关系， 改变所述寄生单元辐射 体的阻抗特性；
所述寄生单元辐射体设置成： 根据所述天线控制单元的控制， 改变阻抗 特性。
可选地， 所述检测单元设置成按照以下方式中的一种或几种对所述移动 终端的当前周围环境进行检测：
检测所述移动终端是否工作在自由空间；
检测所述移动终端周围是否有人体接近；
检测所述移动终端是否在室内；
检测所述移动终端是否在室外。
可选地， 所述天线控制单元设置成按照以下方式改变所述寄生单元辐射 体的阻抗特性： 向所述天线辐射单元中的所述寄生单元辐射体发送指令， 打 开所述寄生单元辐射体中的一个或多个寄生单元，和 /或关闭所述寄生单元辐 射体中的一个或多个寄生单元；
所述寄生单元辐射体设置成按照以下方式根据所述天线控制单元的控制, 改变阻抗特性， 包括： 根据所述天线控制单元发送的指令， 打开所述寄生单 元辐射体中的一个或多个寄生单元，和 /或关闭所述寄生单元辐射体中的一个 或多个寄生单元。 一种智能开关移动终端天线的方法， 所述移动终端的天线辐射单元包括 主馈单元辐射体和寄生单元辐射体， 所述方法包括：
检测所述移动终端的当前工作频段；
根据预先设置的所述天线辐射单元与当前工作频段的对应关系， 改变所 述寄生单元辐射体的阻抗特性。
可选地， 改变所述寄生单元辐射体的阻抗特性的步骤包括：
打开所述寄生单元辐射体中的一个或多个寄生单元； 和 /或，
关闭所述寄生单元辐射体中的一个或多个寄生单元。
一种智能开关移动终端天线的方法， 所述移动终端的天线辐射单元包括 主馈单元辐射体和寄生单元辐射体， 所述方法包括：
检测所述移动终端的当前周围环境；
根据预先设置的所述天线辐射单元与环境状况的对应关系， 改变所述寄 生单元辐射体的阻抗特性。
可选地， 检测所述移动终端的当前周围环境的步骤包括以下检测中的一 种或几种：
检测所述移动终端是否工作在自由空间；
检测所述移动终端周围是否有人体接近；
检测所述移动终端是否在室内；
检测所述移动终端是否在室外。
可选地， 改变所述寄生单元辐射体的阻抗特性的步骤包括：
打开所述寄生单元辐射体中的一个或多个寄生单元； 和 /或，
关闭所述寄生单元辐射体中的一个或多个寄生单元。
一种智能开关移动终端天线的方法， 所述移动终端的天线辐射单元包括 主馈单元辐射体和寄生单元辐射体， 所述方法包括： 检测所述移动终端的当前工作频段以及当前周围环境；
根据预先设置的所述天线辐射单元、 环境状况及当前工作频段三者的对 应关系， 改变所述寄生单元辐射体的阻抗特性。
可选地， 检测所述移动终端的当前周围环境的步骤包括执行以下检测中 的一种或几种：
检测所述移动终端是否工作在自由空间；
检测所述移动终端周围是否有人体接近；
检测所述移动终端是否在室内；
检测所述移动终端是否在室外。
可选地， 改变所述寄生单元辐射体的阻抗特性的步骤包括：
打开所述寄生单元辐射体中的一个或多个寄生单元； 和 /或，
关闭所述寄生单元辐射体中的一个或多个寄生单元。
釆用本发明实施例所述方法和终端，根据移动终端工作频段和 /或接近环 境状态， 由天线控制单元控制天线辐射单元， 使天线工作在最佳状态， 从而 提高了无线通信系统空口的通信质量。 一方面， 可以根据移动终端的当前的 工作频段优化当前频段的天线性能， 解决多制式多模移动终端天线对频率带 宽要求较高的设计问题。 另一方面， 当移动终端受到人体影响时， 可以在不 加大射频主通路路损的前提下，改善人体接近时的天线性能，提高天线性能， 保证通话质量和数据业务应用。 附图概述
图 1为本发明实施例 1的一种智能开关天线组成示意图；
图 2为本发明实施例 1的另一种智能开关天线组成示意图；
图 3为本发明实施例 2的智能开关天线组成示意图；
图 4为本发明实施例 2的自由空间状态下的天线辐射单元示意图； 图 5为本发明实施例 2人体接近状态下的智能开关天线示意图； 图 6为自由空间状态下的天线性能仿真图；
图 7为人体接近状态下的天线性能仿真图；
图 8为人体接近状态下釆用智能开关天线后的天线性能仿真图； 图 9为本发明实施例 3的流程图；
图 10为本发明实施例 4的流程图；
图 11为本发明实施例 5的流程图。
本发明的较佳实施方式
为了使本发明的目的、 技术方案及优点更加清楚明白， 以下结合附图及 实施例， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具体实施 例仅仅用以解释本发明， 并不用于限定本发明。
实施例 1
本实施例说明一种可根据当前工作频段优化当前频段的天线性能的移动 终端，如图 1所示，包括检测单元 11、天线控制单元 12和天线辐射单元 13 , 该天线辐射单元 13包括主馈单元辐射体 131和寄生单元辐射体 132,寄生单 元辐射体 132包括一个或多个寄生单元， 其中：
该检测单元 11设置成：对移动终端当前工作频段进行检测，并向天线控 制单元 12发送检测结果；
该天线控制单元 12设置成： 接收所述检测单元 11发送的检测结果， 根 据预先设置的天线辐射单元 13与当前工作频段的对应关系 ,改变寄生单元辐 射体 132的阻抗特性；
该寄生单元辐射体 132设置成：根据天线控制单元 12的控制，改变阻抗 特性。
可选地，天线控制单元 12设置成按照以下方式改变寄生单元辐射体 132 的阻抗特性：
天线控制单元 12向天线辐射单元 13中的寄生单元辐射体 132发送指令， 打开寄生单元辐射体 132中的一个或多个寄生单元，和 /或关闭寄生单元辐射 体 132中的一个或多个寄生单元。寄生单元辐射体 132根据天线控制单元 12 发送的指令， 打开寄生单元辐射体 132中的一个或多个寄生单元， 和 /或关闭 寄生单元辐射体 132中的一个或多个寄生单元。
寄生单元辐射体 132依靠与主馈单元辐射体 131耦合来达到谐振的目的， 拓展天线的频宽。
通过预先仿真测试终端工作频段与天线辐射单元的对应关系， 当终端工 作时， 根据终端工作的频段选择最合适的寄生单元辐射体 132组成， 即通过 天线控制单元 12控制寄生单元辐射体 132中各寄生单元的打开和 /或关闭来 改变天线辐射单元的形式， 从而改变天线工作频段， 以此提高不同频段时天 线的性能。 上述对应关系可以通过列表形式存储于移动终端中。
在移动终端的使用过程中， 目前空口天线的性能调试和测试多是在自由 空间情况下进行的， 但是在实际使用中， 移动终端大多是由用户手握或者贴 近人头进行无线通信的。 由于移动终端天线很小， 很难实现超宽带， 其谐振 频率一般较窄， 在自由空间状态下尚可满足设计要求， 但当人们在对移动终 端进行操作或者通话时， 由于人体是导电体， 人体的干预会引起天线谐振频 率的偏移， 降低天线的辐射效率， 导致天线性能严重下降， 从而影响通话或 数据业务。 而人们已知的人体对天线的影响主要体现在： 由于人体的干预， 例如人头或者人手的干预， 导致天线的谐振频率会向低频点偏移， 这样直接 影响天线的无源效率和天线工作的频段。 因此通过增加对周围环境（主要是 人体）的检测单元 11 , 并根据检测结果控制相应的寄生单元， 就可以根据周 围人体接近情况自动调整天线的 PATTERN (式样 ) , 改善天线的性能。
可选地，在另一实施例中，该检测单元 11还可设置成对移动终端当前周 围环境进行检测， 并向天线控制单元 12发送检测结果， 如图 2所示， 该检测 单元 11既包括设置成检测终端工作频段的工作频段检测单元 111 , 又包括设 置成检测终端当前周围环境的环境检测单元 112。 此时， 该天线控制单元 12 还设置成：根据预先设置的天线辐射单元 13与环境状况的对应关系或者预先 设置的天线辐射单元 13、 环境状况及当前工作频段三者的对应关系， 改变寄 生单元辐射体 132的阻抗特性。 通过增加对当前周围环境的检测以及天线控制单元 12的处理，当移动终 端受到人体影响时， 可以在不加大射频主通路路损的前提下， 改善人体接近 时的天线性能， 提高天线性能， 保证通话质量和数据业务应用。
检测单元 11 对移动终端当前周围环境进行检测包括以下检测中的一种 或几种： 检测移动终端是否工作在自由空间， 检测移动终端周围是否有人体 接近（人头和 /或人手等）， 检测移动终端是否在室内， 检测移动终端是否在 室外。 而某个或者多个寄生单元的打开或者关闭， 将分别对应着某一个特定 的人体接近状态。
实施例 2
本实施例提供了一种可改善人体接近时天线性能的终端， 如图 3所示， 包括检测单元 11、 天线控制单元 12和天线辐射单元 13 , 该天线辐射单元 13 包括主馈单元辐射体 131和寄生单元辐射体 132, 寄生单元辐射体 132包括 一个或多个寄生单元， 其中：
该检测单元 11设置成：对移动终端当前工作频段进行检测，并向天线控 制单 12发送检测结果；
该天线控制单元 12设置成： 接收所述检测单 11发送的检测结果， 根据 预先设置的天线辐射单元 13与当前工作频段的对应关系 ,改变寄生单元辐射 体 132的阻抗特性；
该寄生单元辐射体 132设置成：根据天线控制单元 12的控制，改变阻抗 特性。
可选地， 天线控制单元 12可以通过向天线辐射单元 13中的寄生单元辐 射体 132 发送指令来控制其中的寄生单元打开和 /或关闭。 寄生单元辐射体 132根据天线控制单元 12发送的指令，打开寄生单元辐射体 132中的一个或 多个寄生单元， 和 /或关闭寄生单元辐射体 132中的一个或多个寄生单元。
当检测单元 11检测到移动终端当前周围环境为自由空间时，天线辐射单 元 13的形式如图 4所示， 天线辐射单元 13由主馈单元辐射体 131和不接地 的寄生单元 1321组成。 移动终端环境检测单元 112可以通过传感器实现， 例如包括两个接近传 感器， 设置成检测移动终端是否与人体接近， 并将检测结果发送给天线控制 单元 12。 当检测单元 11检测到移动终端周围有人体时， 天线控制单元 12根 据预先设置的对应关系选通寄生单元（例如寄生单元 1321 ) , 并将其与手机 PCB (印刷电路板） 中的地相连， 或者与手机机壳连通， 如图 5所示。 天线 控制单元 12选通寄生单元 1321后，该天线辐射单元 13就由人体、主馈单元 辐射体 131和接地的寄生单元 1321共同组成，形成了一个新的天线走线形式。 通过将寄生单元 1321接地这一改变，将人体接近移动终端时造成的人体影响 因素减小， 重新调整天线的谐振点到预先设置的最佳状态。 从而提升了人体 接近状态下的天线效率， 提高了用户实际应用过程中的移动终端空口通信质 量。
图 6为终端在自由空间状态下的天线性能仿真图， 该天线工作在两个谐 振点： 968MHz和 2.107GHz,其中, S11是表征天线特性的一个指标量， ml和 m2均是传真过程中标识天线谐振的 Mark点， 该图表明天线的原始状态， 其 谐振点越深， 下凹越宽， 表明天线的谐振状态越好， 带宽也越宽。
图 7为人体接近状态下的天线性能仿真图， 由于受人体干预的影响， 该 天线的自由空间状态下的两个谐振点向低频偏移至： 953.4MHz和 2.064GHz, 图中的各个参数含义与图 6相同， 该图表明手机天线由于受用户人体（人头 或者人手等）干预后， 天线的谐振点发生偏移原来自由空间的状态， 导致天 线性能下降。
图 8为在天线控制单元控制下， 人体接近状态下的天线性能仿真图， 通 过天线控制单元 12的控制，将人体和主馈单元辐射体 131及寄生单元辐射体 132共同作为天线辐射单元 13 , 图中的各个参数含义与图 6相同， 该图标明 在图 6的自由空间状态下，由于受人体（比如人头或者人手）干预后（图 7 ) , 通过本发明实施例提出的方法， 可以使天线受人体干扰的影响减到最小， 基 本与天线的原始状态一致,即将该天线的谐振点重新拉回到接近原始状态的 968MHz和 2.107GHz, 从而提高了人体干预情况下的天线性能,。 实施例 3
本实施例介绍针对图 1所示智能天线结构的智能开关移动终端天线的方 法， 如图 9所示， 包括以下步骤：
步骤 110, 检测移动终端当前工作频段；
步骤 120,根据预先设置的天线辐射单元 13与当前工作频段的对应关系， 改变寄生单元辐射体 132的阻抗特性， 例如打开寄生单元辐射体 132中的一 个或多个寄生单元，和 /或关闭寄生单元辐射体 132中的一个或多个寄生单元,
实施例 4
本实施例介绍针对图 2所示智能天线结构的智能开关移动终端天线的方 法， 如图 10所示， 包括以下步骤：
步骤 210, 检测移动终端当前工作频段以及移动终端当前周围环境； 步骤 220, 根据预先设置的天线辐射单元 13、 环境状况及当前工作频段 三者的对应关系， 改变寄生单元辐射体 132的阻抗特性。
实施例 5
本实施例介绍针对图 3所示智能天线结构的智能开关移动终端天线的方 法， 如图 11所示， 包括以下步骤：
步骤 310, 检测移动终端当前周围环境；
步骤 320, 根据预先设置的天线辐射单元 13与环境状况的对应关系， 改 变寄生单元辐射体 132的阻抗特性。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 所述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
当然， 本发明还可有其他多种实施例， 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性
上述技术方案一方面可以根据移动终端的当前的工作频段优化当前频段 的天线性能，解决多制式多模移动终端天线对频率带宽要求较高的设计问题。 另一方面， 当移动终端受到人体影响时， 可以在不加大射频主通路路损的前 提下， 改善人体接近时的天线性能， 提高天线性能， 保证通话质量和数据业 务应用。 因此本发明具有很强的工业实用性。

Claims

权 利 要 求 书
1、 一种智能开关天线的移动终端， 包括： 检测单元、 天线控制单元和天 线辐射单元， 所述天线辐射单元包括主馈单元辐射体和寄生单元辐射体， 其 中：
所述检测单元设置成： 对所述移动终端的当前工作频段进行检测， 并向 所述天线控制单元发送检测结果；
所述天线控制单元设置成： 接收所述检测单元发送的检测结果， 根据预 先设置的所述天线辐射单元与当前工作频段的对应关系， 改变所述寄生单元 辐射体的阻抗特性；
所述寄生单元辐射体设置成： 根据所述天线控制单元的控制， 改变阻抗 特性。
2、 如权利要求 1所述的移动终端， 其中，
所述检测单元还设置成： 对所述移动终端的当前周围环境进行检测， 并 向所述天线控制单元发送检测结果；
所述天线控制单元还设置成： 根据预先设置的所述天线辐射单元与环境 状况的对应关系， 或者预先设置的所述天线辐射单元、 环境状况及当前工作 频段三者的对应关系， 改变所述寄生单元辐射体的阻抗特性。
3、如权利要求 2所述的移动终端， 其中， 所述检测单元设置成按照以下 方式中的一种或几种对所述移动终端的当前周围环境进行检测：
检测所述移动终端是否工作在自由空间；
检测所述移动终端周围是否有人体接近；
检测所述移动终端是否在室内；
检测所述移动终端是否在室外。
4、 如权利要求 1或 2或 3所述的移动终端， 其中：
所述天线控制单元设置成按照以下方式改变所述寄生单元辐射体的阻抗 特性： 向所述天线辐射单元中的所述寄生单元辐射体发送指令， 打开所述寄 生单元辐射体中的一个或多个寄生单元，和 /或关闭所述寄生单元辐射体中的 一个或多个寄生单元；
所述寄生单元辐射体设置成按照以下方式根据所述天线控制单元的控制, 改变阻抗特性： 根据所述天线控制单元发送的指令， 打开所述寄生单元辐射 体中的一个或多个寄生单元，和 /或关闭所述寄生单元辐射体中的一个或多个 寄生单元。
5、 一种智能开关天线的移动终端， 包括： 检测单元、 天线控制单元和天 线辐射单元， 所述天线辐射单元包括主馈单元辐射体和寄生单元辐射体， 其 中：
所述检测单元设置成： 对所述移动终端的当前周围环境进行检测， 并向 所述天线控制单元发送检测结果；
所述天线控制单元设置成： 接收所述检测单元发送的检测结果， 根据预 先设置的所述天线辐射单元与环境状况的对应关系， 改变所述寄生单元辐射 体的阻抗特性；
所述寄生单元辐射体设置成： 根据所述天线控制单元的控制， 改变阻抗 特性。
6、如权利要求 5所述的移动终端， 其中， 所述检测单元设置成按照以下 方式中的一种或几种对所述移动终端的当前周围环境进行检测：
检测所述移动终端是否工作在自由空间；
检测所述移动终端周围是否有人体接近；
检测所述移动终端是否在室内；
检测所述移动终端是否在室外。
7、 如权利要求 5或 6所述的移动终端， 其中，
所述天线控制单元设置成按照以下方式改变所述寄生单元辐射体的阻抗 特性： 向所述天线辐射单元中的所述寄生单元辐射体发送指令， 打开所述寄 生单元辐射体中的一个或多个寄生单元，和 /或关闭所述寄生单元辐射体中的 一个或多个寄生单元；
所述寄生单元辐射体设置成按照以下方式根据所述天线控制单元的控制, 改变阻抗特性， 包括： 根据所述天线控制单元发送的指令， 打开所述寄生单 元辐射体中的一个或多个寄生单元，和 /或关闭所述寄生单元辐射体中的一个 或多个寄生单元。
8、一种智能开关移动终端天线的方法，所述移动终端的天线辐射单元包 括主馈单元辐射体和寄生单元辐射体， 所述方法包括：
检测所述移动终端的当前工作频段；
根据预先设置的所述天线辐射单元与当前工作频段的对应关系， 改变所 述寄生单元辐射体的阻抗特性。
9、如权利要求 8所述的方法， 其中， 改变所述寄生单元辐射体的阻抗特 性的步骤包括：
打开所述寄生单元辐射体中的一个或多个寄生单元； 和 /或，
关闭所述寄生单元辐射体中的一个或多个寄生单元。
10、 一种智能开关移动终端天线的方法， 所述移动终端的天线辐射单元 包括主馈单元辐射体和寄生单元辐射体， 所述方法包括：
检测所述移动终端的当前周围环境；
根据预先设置的所述天线辐射单元与环境状况的对应关系， 改变所述寄 生单元辐射体的阻抗特性。
11、如权利要求 10所述的方法， 其中，检测所述移动终端的当前周围环 境的步骤包括以下检测中的一种或几种：
检测所述移动终端是否工作在自由空间；
检测所述移动终端周围是否有人体接近；
检测所述移动终端是否在室内；
检测所述移动终端是否在室外。
12、 如权利要求 10或 11所述的方法， 其中， 改变所述寄生单元辐射体 的阻抗特性的步骤包括：
打开所述寄生单元辐射体中的一个或多个寄生单元； 和 /或，
关闭所述寄生单元辐射体中的一个或多个寄生单元。
13、 一种智能开关移动终端天线的方法， 所述移动终端的天线辐射单元 包括主馈单元辐射体和寄生单元辐射体， 所述方法包括：
检测所述移动终端的当前工作频段以及当前周围环境；
根据预先设置的所述天线辐射单元、 环境状况及当前工作频段三者的对 应关系， 改变所述寄生单元辐射体的阻抗特性。
14、如权利要求 13所述的方法， 其中，检测所述移动终端的当前周围环 境的步骤包括执行以下检测中的一种或几种：
检测所述移动终端是否工作在自由空间；
检测所述移动终端周围是否有人体接近；
检测所述移动终端是否在室内；
检测所述移动终端是否在室外。
15、 如权利要求 13或 14所述的方法， 其中， 改变所述寄生单元辐射体 的阻抗特性的步骤包括：
打开所述寄生单元辐射体中的一个或多个寄生单元； 和 /或，
关闭所述寄生单元辐射体中的一个或多个寄生单元。
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US20100041348A1 (en) * 2008-08-15 2010-02-18 Sony Ericsson Mobile Communication Ab Full closed loop auto antenna tuning for wireless communications

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114976631A (zh) * 2021-06-25 2022-08-30 荣耀终端有限公司 一种终端天线及电子设备
CN114976631B (zh) * 2021-06-25 2023-11-14 荣耀终端有限公司 一种终端天线及电子设备

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US20150133066A1 (en) 2015-05-14
MX2014013713A (es) 2015-08-10
US9439151B2 (en) 2016-09-06
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EP2849349A1 (en) 2015-03-18

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