WO2011150866A2 - 无线终端 - Google Patents

无线终端 Download PDF

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Publication number
WO2011150866A2
WO2011150866A2 PCT/CN2011/075297 CN2011075297W WO2011150866A2 WO 2011150866 A2 WO2011150866 A2 WO 2011150866A2 CN 2011075297 W CN2011075297 W CN 2011075297W WO 2011150866 A2 WO2011150866 A2 WO 2011150866A2
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WO
WIPO (PCT)
Prior art keywords
antenna
wireless terminal
positioning
vibrator
positioning antenna
Prior art date
Application number
PCT/CN2011/075297
Other languages
English (en)
French (fr)
Other versions
WO2011150866A3 (zh
Inventor
许安民
张学飞
孙树辉
Original Assignee
华为终端有限公司
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 华为终端有限公司 filed Critical 华为终端有限公司
Priority to EP11789245.5A priority Critical patent/EP2704516A4/en
Priority to CN2011800009320A priority patent/CN102265457A/zh
Priority to JP2014513027A priority patent/JP2014522595A/ja
Priority to PCT/CN2011/075297 priority patent/WO2011150866A2/zh
Publication of WO2011150866A2 publication Critical patent/WO2011150866A2/zh
Publication of WO2011150866A3 publication Critical patent/WO2011150866A3/zh
Priority to US14/095,183 priority patent/US20140085157A1/en

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Classifications

    • 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
    • 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
    • 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
    • H01Q19/22—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 using a secondary device in the form of a single substantially straight conductive element
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/35—Constructional details or hardware or software details of the signal processing chain
    • G01S19/36—Constructional details or hardware or software details of the signal processing chain relating to the receiver frond end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • 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

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a wireless terminal. Background technique
  • a positioning antenna for receiving a positioning carrier signal from a satellite is provided in the wireless terminal, for example, a Global Positioning System (GPS), a Galileo satellite navigation system, a GLObal NAvigation Satellite System (GLONASS), etc. Positioning antenna in the positioning system.
  • GPS Global Positioning System
  • Galileo satellite navigation system Galileo satellite navigation system
  • GLONASS GLObal NAvigation Satellite System
  • Embodiments of the present invention provide a wireless terminal for improving radiation efficiency.
  • An embodiment of the present invention provides a wireless terminal, including a PCB and an antenna system, where the antenna system includes a positioning antenna for receiving a positioning carrier signal from a satellite, and the radiation area of the positioning antenna is set to a vibrator. The energy in the positioning antenna is coupled into the directing vibrator and radiates the energy into space.
  • the embodiment of the present invention provides a spatial low-impedance path of a satellite carrier signal (ie, a 1575.42 MHz radio frequency signal) by locating the radiating region of the antenna to couple the energy in the positioning antenna to Leading to the vibrator, and radiating the coupled energy to the space by the vibrator, forming a coupled radiation field, thereby improving the radiation efficiency of the antenna system, and at the same time, achieving radiation directivity guidance.
  • a satellite carrier signal ie, a 1575.42 MHz radio frequency signal
  • FIG. 1 is a schematic structural diagram of a wireless terminal according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of an antenna system in a wireless terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a size of an antenna system in a wireless terminal according to an embodiment of the present invention.
  • a personal digital assistant (PDA), a wireless handheld device, a personal computer, a wireless netbook, a portable computer, an MP3 player, an MP4 player, and the like having a positioning function.
  • FIG. 1 is a schematic structural diagram of a wireless terminal according to an embodiment of the present invention.
  • the wireless terminal of this embodiment may include a PCB 10 and an antenna system 20.
  • the antenna system 20 may include a positioning antenna 21 for receiving a positioning carrier signal from a satellite, and a radiation area of the positioning antenna 21 is provided to the vibrator 22 for coupling energy in the positioning antenna 21 to the guiding element 22, The spatial radiation is directed to the aforementioned energy coupled in the vibrator 22.
  • the positioning antenna 21 may include, but is not limited to, a monopole antenna, and an inverted F type.
  • An Inverted F-shaped Antenna (IFA) or a Planar Inverted F-shaped Antenna (PIFA) is not limited in this embodiment.
  • the electromagnetic wave propagates in space as a periodic sine or cosine, it is separated by a quarter of the medium wavelength, from zero to peak or zero to trough.
  • the length of the director is one-half of the wavelength of the medium medium, it is attractive to the electromagnetic wave of the corresponding frequency, and can guide the electromagnetic wave to radiate in the direction, that is, the guiding effect is produced.
  • the director is limited by the size of the whole machine. Although it does not necessarily create a space of a quarter of the medium wavelength between the positioning antenna 21, it can also generate a close-range coupling.
  • the effect and positioning antenna The space between the ones that produce a quarter of the medium wavelength is similar.
  • the director vibrator 22 in this embodiment may be a head-to-tail closed-point oscillator, and its length may be an even multiple of a half-media wavelength, because for a closed curve resonance, it is mainly related to the circumference, when the circumference is It is the strongest resonance when it is an even multiple of one-half of the medium wavelength.
  • the directing oscillator 22 in this embodiment may also be a first-to-tail non-closed guiding oscillator.
  • This embodiment does not limit this, and the length may be an odd multiple of one-half of the medium wavelength because For an elongated metal conductor, it has the strongest resonance when its length is a half wave (an odd multiple of one-half of the medium wavelength).
  • the guiding vibrator 22 can be disposed at any position in the radiation region of the positioning antenna 21, and can couple the energy in the positioning antenna 21 to the guiding vibrator 22, and direct the radiation to the vibrator 22.
  • the directing vibrator 22 in this embodiment may be disposed in parallel with the proximal end portion of the positioning antenna 21, and as shown in FIG. 2, the guiding vibrator 22 is disposed in parallel with the shaded portion of the positioning antenna 21.
  • the tail end of the positioning antenna 21 refers to the end away from the end (feed end) connected to the PCB 10, and may also be referred to as a distal end.
  • the positioning antenna 21 is L-shaped, the near-end portion is the L-shaped bottom area.
  • the positioning antenna 21 may be disposed on the rear case of the wireless terminal, and the guiding vibrator 22 may be disposed on the top of the whole unit of the wireless terminal.
  • the distance between the leading end portion 22 and the near end portion of the positioning antenna 21 may be 4.5 mm to 5.5 mm, preferably 5 mm; 22 may be a strip of metal, or may be an arcuate metal bent toward the positioning antenna 21, and the length of the deflector 22 may be 52 mm to 58 mm, preferably 55 mm; the width of the deflector 22
  • the size of the positioning antenna 21 can be referred to the related design parameters in the prior art, and will not be described in detail in this embodiment.
  • the radiation efficiency of the above antenna system can be as shown in Table 1.
  • the energy in the positioning antenna can be coupled to the guiding oscillator.
  • the coupled radiation field is radiated by the energy directed to the space to form a coupled radiation field, thereby improving the radiation efficiency of the antenna system and simultaneously achieving radiation directivity guidance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

本发明实施例提供一种无线终端，包括PCB（10）和天线***（20）。所述天线***（20）包括用于接收来自卫星的定位载波信号的定位天线（21），所述定位天线（21）的辐射区设置引向振子（22），用于将所述定位天线（21）中的能量耦合到所述引向振子（22）中，并向空间辐射所述能量。本发明实施例通过定位天线的辐射区设置引向振子，形成卫星的载波信号（即1575.42MHz的射频信号）的空间低阻路径，能够实现将定位天线中的能量耦合到引向振子中，并由引向振子向空间辐射耦合的能量，形成耦合辐射场，从而提高了天线***的辐射效率，同时还实现了辐射方向性引导。

Description

无线终端 技术领域
本发明实施例涉及通信技术， 尤其涉及一种无线终端。 背景技术
随着无线通信技术的发展， 无线终端中集成了越来越多的应用功能， 定 位功能就是其中之一。 无线终端中设置有用于接收来自卫星的定位载波信号 的定位天线， 例如： 全球定位***（ Global Positioning System, 简称 GPS )、 伽利略卫星导航***、 全球导航卫星*** （GLObal NAvigation Satellite System, 简称 GLONASS )等定位***中的定位天线。
但是， 现有技术中的定位天线中的能量并不是全部都辐射到了空间中， 还有一部分通过天线的馈线返回到印制电路板 ( Printed Circuit Board, 简称 PCB )上， 由 PCB进行辐射和消耗， 从而降低了定位天线的辐射效率。 发明内容
本发明实施例提供一种无线终端， 用以提高辐射效率。
本发明实施例提供了一种无线终端， 包括 PCB和天线***， 其中， 所述 天线***包括用于接收来自卫星的定位载波信号的定位天线， 所述定位天线 的辐射区设置引向振子， 用于将所述定位天线中的能量耦合到所述引向振子 中， 并向空间辐射所述能量。
由上述技术方案可知， 本发明实施例通过定位天线的辐射区设置引向振 子， 形成卫星的载波信号 （即 1575.42MHz的射频信号） 的空间低阻路径， 能够实现将定位天线中的能量耦合到引向振子中， 并由引向振子向空间辐射 耦合的能量， 形成耦合辐射场， 从而提高了天线***的辐射效率， 同时还实 现了辐射方向性引导。 附图说明 施例或现有技术描述中所需要使用的附图作一简单地介绍， 显而易见地， 下 面描述中的附图是本发明的一些实施例， 对于本领域普通技术人员来讲， 在 不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的无线终端的结构示意图；
图 2为本发明实施例提供的无线终端中天线***的结构示意图； 图 3为本发明实施例提供的无线终端中天线***的尺寸示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发 明实施例中的附图， 对本发明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发明一部分实施例， 而不是全部的实施例。 基于 本发明中的实施例， 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， 都属于本发明保护的范围。 个人数字助理（Personal Digital Assistant, 简称 PDA )、 无线手持设备、 个 人电脑、 无线上网本、 便携电脑、 MP3播放器、 MP4播放器等具有定位功能 的终端。
图 1为本发明实施例提供的无线终端的结构示意图， 如图 1所示， 本实 施例的无线终端可以包括 PCB 10和天线*** 20。 其中， 天线*** 20可以 包括用于接收来自卫星的定位载波信号的定位天线 21 , 定位天线 21 的辐射 区设置引向振子 22, 用于将定位天线 21 中的能量耦合到引向振子 22中， 并 向空间辐射引向振子 22中耦合的上述能量。
其中， 定位天线 21可以包括但不限于单极（monopole )天线、 倒 F型 天线 ( Inverted F-shaped Antenna, 简称 IFA )或平面倒 F型天线 ( Planar Inverted F-shaped Antenna, 简称 PIFA ), 本实施例对此不进行限制。
由于电磁波在空间传播是周期性的正弦或者余弦， 间隔四分之一介质波 长， 为零点到波峰或者零点到波谷。 当引向振子的长度为二分之一介质波长 的整数倍的时候， 对于对应频率的电磁波具有吸引力， 能够引导电磁波向该 方向辐射， 即产生引向效果。 有些情况下， 引向振子受限于整机尺寸， 虽然 不一定能与定位天线 21之间产生四分之一介质波长的空间 ,但是也可以产生 一种近距离的耦合，其效果与定位天线 21之间产生四分之一介质波长的空间 类似。
例如： 本实施例中的引向振子 22可以为首尾闭合引向振子， 其长度则可 以为二分之一介质波长的偶数倍， 因为对于一个闭合的曲线谐振主要与周长 有关， 当周长是二分之一介质波长的偶数倍时， 具有最强谐振。
例如：可选地，本实施例中的引向振子 22还可以为首尾不闭合引向振子， 本实施例对此不进行限制， 其长度则可以为二分之一介质波长的奇数倍， 因 为对于细长金属导体， 当其长度是半波（二分之一介质波长的奇数倍） 时， 具有最强谐振。
本实施例中， 引向振子 22可以设置在定位天线 21的辐射区中的任意位 置， 均能够实现将定位天线 21 中的能量耦合到引向振子 22中， 并向空间辐 射引向振子 22中耦合的上述能量。 较佳地， 本实施例中的引向振子 22具体 可以与定位天线 21的近尾端部分平行设置， 如图 2所示， 引向振子 22与定 位天线 21的阴影部分平行设置。 其中， 定位天线 21的尾端是指远离与 PCB 10连接的一端 （馈端） 的那一端， 还可以称为远端。 例如： 定位天线 21 为 L形时， 近尾端部分则为 L形的底部区域。
具体地， 定位天线 21可以设置在无线终端的后壳上， 引向振子 22可以设 置在无线终端的整机顶部。 如图 3所示， 引向振子 22与定位天线 21的近尾端 部分之间的距离可以为 4.5mm~5.5mm, 较佳地， 可以优选为 5mm; 引向振子 22可以为一直条状金属， 或者还可以为背向定位天线 21弯曲的一弓形金属， 引向振子 22的长度可以为 52mm~58mm, 较佳地， 可以优选为 55mm; 引向 振子 22的宽度为可以 1 mm~3mm, 较佳地， 可以优选为 2mm; 定位天线 21 的尺寸可以参见现有技术中的相关设计参数， 本实施例不再赘述。
具体地， 上述天线***的辐射效率可以如表 1所示。
表 1 天线***的辐射效率
Figure imgf000006_0001
本实施例中， 通过定位天线的辐射区设置引向振子， 形成卫星的载波信 号 （即 1575.42MHz的射频信号） 的空间低阻路径， 能够实现将定位天线中 的能量耦合到引向振子中， 并由引向振子向空间辐射耦合的能量， 形成耦合 辐射场， 从而提高了天线***的辐射效率， 同时还实现了辐射方向性引导。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对其 限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通技术 人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行修改， 或 者对其中部分技术特征进行等同替换； 而这些修改或者替换， 并不使相应技 术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权 利 要求
1、 一种无线终端， 包括 PCB和天线***， 其特征在于， 所述天线*** 包括用于接收来自卫星的定位载波信号的定位天线， 所述定位天线的辐射区 设置引向振子， 用于耦合所述定位天线中的能量， 并向空间辐射所述能量。
2、根据权利要求 1所述的无线终端， 其特征在于， 所述引向振子为首尾 闭合引向振子或首尾不闭合引向振子。
3、根据权利要求 2所述的无线终端， 其特征在于， 所述首尾闭合引向振 子的长度为二分之一介质波长的偶数倍。
4、根据权利要求 2所述的无线终端， 其特征在于， 所述首尾不闭合引向 振子的长度为二分之一介质波长的奇数倍。
5、根据权利要求 1至 4任一权利要求所述的无线终端， 其特征在于， 所 述引向振子与所述定位天线的近尾端部分平行。
6、根据权利要求 5所述的无线终端， 其特征在于， 所述引向振子与所述 定位天线的近尾端部分之间的距离为 4.5mm~5.5mm。
7、根据权利要求 5所述的无线终端， 其特征在于， 所述引向振子的长度 为 52mm~58mm。
8、根据权利要求 5所述的无线终端， 其特征在于， 所述引向振子的宽度 为 1 mm~3mm。
PCT/CN2011/075297 2011-06-03 2011-06-03 无线终端 WO2011150866A2 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11789245.5A EP2704516A4 (en) 2011-06-03 2011-06-03 WIRELESS TERMINAL
CN2011800009320A CN102265457A (zh) 2011-06-03 2011-06-03 无线终端
JP2014513027A JP2014522595A (ja) 2011-06-03 2011-06-03 無線端末
PCT/CN2011/075297 WO2011150866A2 (zh) 2011-06-03 2011-06-03 无线终端
US14/095,183 US20140085157A1 (en) 2011-06-03 2013-12-03 Wireless terminal

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PCT/CN2011/075297 WO2011150866A2 (zh) 2011-06-03 2011-06-03 无线终端

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US14/095,183 Continuation US20140085157A1 (en) 2011-06-03 2013-12-03 Wireless terminal

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WO2011150866A2 true WO2011150866A2 (zh) 2011-12-08
WO2011150866A3 WO2011150866A3 (zh) 2012-05-10

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CN103560318B (zh) * 2013-10-24 2016-04-13 西安电子科技大学 一种小型化定向辐射印刷天线
WO2016092801A1 (ja) 2014-12-08 2016-06-16 パナソニックＩｐマネジメント株式会社 アンテナ及び電気機器
JP7424617B2 (ja) 2020-01-30 2024-01-30 Ｎｅｃプラットフォームズ株式会社 アンテナ装置

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JP2014522595A (ja) 2014-09-04
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CN102265457A (zh) 2011-11-30
EP2704516A2 (en) 2014-03-05
WO2011150866A3 (zh) 2012-05-10

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