WO2011160543A1 - 无线通信设备 - Google Patents

无线通信设备 Download PDF

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Publication number
WO2011160543A1
WO2011160543A1 PCT/CN2011/075172 CN2011075172W WO2011160543A1 WO 2011160543 A1 WO2011160543 A1 WO 2011160543A1 CN 2011075172 W CN2011075172 W CN 2011075172W WO 2011160543 A1 WO2011160543 A1 WO 2011160543A1
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WO
WIPO (PCT)
Prior art keywords
main board
main body
main
matching network
wireless communication
Prior art date
Application number
PCT/CN2011/075172
Other languages
English (en)
French (fr)
Inventor
柳青
徐慧梁
兰尧
孙树辉
屠东兴
王定杰
帅培华
雷平
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 EP11797574.8A priority Critical patent/EP2552028B1/en
Priority to ES11797574.8T priority patent/ES2553282T3/es
Publication of WO2011160543A1 publication Critical patent/WO2011160543A1/zh
Priority to US13/659,608 priority patent/US9112557B2/en

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Classifications

    • 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
    • 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
    • H01Q1/245—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 means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
    • 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 invention relates to the field of communications technologies, and in particular, to a wireless communication device. Background technique
  • SAR Specific Absorption Rate
  • a double grounding structure is provided, and the first grounding path is provided by a USB head and a flexible printed circuit board (Flexible Printed Circuit).
  • the following cylinders are called: FPC) and a printed circuit board (PCB) motherboard is formed.
  • the second grounding path is formed by a USB head, a metal bullet, a metal shaft and a PCB main board. It enhances the grounding performance of the PCB board through two ground paths, which improves the low-frequency wireless performance of the wireless communication terminal.
  • Embodiments of the present invention provide a wireless communication device, which simultaneously ensures SAR performance and wireless performance of a wireless communication terminal, and improves user experience.
  • the embodiment of the present invention provides a wireless communication device, including a main board and a connecting component, the main board includes a main body of the main board and a main board end connected to the connecting component, and a side of the main body of the main board main body away from the end of the main board There is an antenna, and a matching network is disposed between the main body of the main board and the end of the main board, and the matching network is used to control the distribution of surface current excited by the antenna on the main board.
  • the wireless communication device of the embodiment of the present invention by setting a matching network between the main body of the wireless communication device and the end of the main board, the distribution of the surface current excited by the antenna is changed by the matching network, and the SAR of the wireless communication terminal can be realized. Performance and wireless performance are guaranteed at the same time, ? The feeling of using Wenshan users. DRAWINGS
  • Embodiment 1 is a schematic structural diagram of Embodiment 1 of a wireless communication device according to the present invention.
  • Embodiment 2 is a schematic structural diagram of Embodiment 2 of a wireless communication device according to the present invention.
  • FIG. 3 is a schematic structural diagram of Embodiment 3 of a wireless communication device according to the present invention. detailed description
  • the present embodiment provides a wireless communication device, which may specifically include a main board and a connecting component.
  • the main board may specifically include a main body of the main board and a main board end connected to the connecting part.
  • an antenna is connected to a side of the main body of the main body away from the end of the main board, and a matching network is disposed between the main body of the main board and the end of the main board, and the matching network is used for controlling the distribution of the surface current excited by the antenna on the main board of the wireless communication device.
  • the computer when the wireless communication device is connected to a computer or other device through its connecting component, the computer can be equivalent to the grounding terminal, and the antenna, the main body, the matching mesh, the mainboard end, the connecting component, and the computer are formed.
  • the grounding path of the main board, the surface current excited by the antenna reaches the ground of the computer from the main body of the main board.
  • a matching network is disposed between the main body of the main board and the end of the main board, and the main body of the main board and the end of the main board are electrically connected.
  • the matching network in this embodiment is used to control the distribution of the surface current excited by the antenna, the distribution of the surface current on the main board is changed after the matching network is set, and the SAR performance, the wireless performance and the surface current of the wireless communication device are changed.
  • the SAR performance and wireless performance of the wireless communication device can be improved by adding a matching network on the motherboard.
  • the embodiment provides a wireless communication device.
  • the matching network can change the distribution of the surface current excited by the antenna, and the wireless communication terminal can be realized.
  • the SAR performance and wireless performance are simultaneously guaranteed to improve the user experience.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of a wireless communication device according to the present invention.
  • this embodiment provides a wireless communication device.
  • the wireless communication device provided in this embodiment is specifically a wireless device with a rotatable data connector.
  • the communication device, that is, the connecting component 2 in the wireless communication device is a rotatable data connector, and the data connector and the main board can be rotated relative to each other through the rotating shaft.
  • the data connector in this embodiment can be specifically a USB head, and the USB head is followed by The example is explained.
  • the wireless communication device may specifically include a main board and a connecting component 2, wherein the main board may specifically include a main body 11 and a mainboard end 12 connected to the connecting component 2.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of a wireless communication device according to the present invention.
  • this embodiment provides a wireless communication device.
  • the wireless communication device provided in this embodiment is specifically a wireless device with a rotatable data connector.
  • the antenna 3 is connected to the side of the main body 11 that is away from the main body end 12 , and the matching network 13 is disposed between the main body 11 and the main end 12 .
  • the main board main body 11 and the main board end portion 12 are integrally connected on one side of the main board main body 11 , and the other side of the main board main body 11 is connected through the matching network 13 , and the main board end portion 12 passes the first metal elastic leg. 141.
  • the metal rotating shaft 142, the second metal elastic foot 143 and the connecting body 15 are connected to the USB head, wherein the connecting body 15 can be a flexible printed circuit board FPC or a wire.
  • the first grounding path is integrally connected to the main body 11 and the main board end 12, the connector 15, and the USB.
  • the head and the computer ground end are composed, and the second grounding path is composed of the main body 11 , the matching network 13 , the main board end 12 , the first metal elastic 141 , the metal rotating shaft 142 , the second metal elastic 143 , the USB head and the computer ground end composition.
  • the first metal elastic leg 141 has one end connected to the USB head and the other end connected to the metal rotating shaft 142.
  • the second metal elastic foot 143 has one end connected to the metal rotating shaft 142 and the other end connected to the matching network 13.
  • FIG. 1 specifically shows the structure of the wireless communication device after the USB head is rotated by 180 degrees.
  • FIG. 2 is a schematic structural diagram of Embodiment 2 of the wireless communication device according to the present invention.
  • the first metal elastic foot and the second metal elastic foot may also be integrated.
  • the metal dome 140 is in contact with the metal shaft 142 (the metal dome 140 may also not be in contact with the metal shaft 142, which may be the case when the metal shaft 142 is not metal).
  • the shape of the metal dome 140 may be a straight strip shape as shown in Fig. 2, or may be other shapes such as a polygonal line shape or the like.
  • the matching network in this embodiment may be specifically a low-pass filter circuit, and the low-pass filter circuit may be composed of an inductor L or a capacitor C, or any two or three of the resistor 1, the capacitor C, and the inductor L. Combined to achieve. That is, the low-pass filter circuit of this embodiment may be implemented by an inductor, may also be implemented by a capacitor, or may be realized by a combination of a resistor and a capacitor, or a combination of a resistor and an inductor, or a combination of an inductor and a capacitor, or By resistors, capacitors and inductors The combination is implemented.
  • a pad may be reserved at a gap between the main body of the main board and the end of the main board, that is, a pad is reserved in the second grounding path to access the parameter element to form a matching network.
  • the specific filtering performance of the low-pass filter circuit can be implemented by adjusting specific parameters of the accessed parameter components.
  • the wireless communication device by adding a matching network as a low-pass filter circuit between the main body of the wireless communication device and the end of the main board, it is ensured that the distribution of the surface current of the low-frequency band on the main board does not change, that is, the wireless communication device can be ensured.
  • the low-frequency wireless performance does not change; the distribution of the surface current on the high-frequency band is changed.
  • the high-band surface current cannot reach the USB head from the path with the matching network, but can only reach the USB head from another path.
  • the surface current of the band is concentrated on another path, so that another SAR hot spot other than the original SAR hot spot on the main board is formed near the USB device (such as a computer), so that the USB head and the connected device can share more
  • the microwave energy makes the near-field energy distribution on the main board more uniform, reducing the maximum value of the original S AR hotspot on the main board, thereby improving the S AR performance. Since the SAR performance of the wireless communication terminal is directly related to the uniformity of the near-field energy distribution of the wireless terminal device, the more uniform the near-field energy distribution is, the smaller the maximum value of the SAR hotspot is, that is, the lower the SAR value of the wireless communication terminal.
  • the distribution of the surface current of the high-frequency band excited by the antenna on the main board is changed, so that the near-field energy distribution of the wireless terminal device is also Homogenization, in turn, can reduce the high frequency SAR value of the wireless communication device, that is, improve the high frequency SAR performance of the wireless communication terminal.
  • the rotatable USB head of the wireless communication device is rotated by 90 degrees or 180 degrees, the matching network provided therein can significantly improve the wireless communication device under the premise of ensuring good low-frequency wireless performance of the wireless communication device. SAR performance.
  • the matching network disposed between the main body of the main board and the end of the main board may further be a high-pass low-resistance filter circuit for maintaining the antenna when the USB head rotates.
  • the distribution of the excited low-band surface current on the main board does not change.
  • a matching network is provided between the main body of the main board and the end of the main board as a high-pass low-resistance filter, and the network has a turbulent action on the low-frequency current caused by the antenna excitation on the main board, and the embodiment passes Set this network to ensure that the low-band surface current distribution is not changed by the application conditions.
  • the influence of the grounding end of the computer on the current distribution on the main board under different rotation scenarios of the USB head is weakened, and then the low-frequency wireless performance is guaranteed to be low.
  • the wireless performance does not change to solve the wireless performance differentiation problem in various rotating scenarios caused by the wireless communication device with the rotatable USB head when the USB head is rotated.
  • the high-pass low-resistance filter circuit may be constituted by the inductor L or the capacitor C, or by a combination of any two or three of the resistor R, the capacitor C and the inductor L. That is, the filter circuit of the embodiment can be implemented by an inductor, can also be realized by a capacitor, can also be realized by a combination of a resistor and a capacitor, or can be realized by a combination of a resistor and an inductor, or can be realized by a combination of an inductor and a capacitor. This can be achieved by a combination of resistors, capacitors and inductors.
  • a pad may be reserved at a gap between the main body of the main board and the end of the main board, that is, a pad is reserved in the second ground path to access the parameter element to form a high-pass low-resistance filter circuit.
  • the specific filtering performance of the high-pass low-resistance filter circuit can be realized by adjusting the specific parameters of the accessed parameter components.
  • FIG. 3 is a schematic structural diagram of a third embodiment of a wireless communication device according to the present invention.
  • the embodiment provides a wireless communication device.
  • the wireless communication device provided by the present embodiment is a wireless communication device with an in-line data connector. That is, the connecting part 2 in the wireless communication device is an in-line data connector, wherein the data connector can slide relative to the main board, for example, can slide in the direction of the long side of the main board or slide in a direction of 90 degrees with the direction.
  • the data connector in this embodiment may be specifically a USB header, and the USB header is taken as an example for description.
  • the wireless communication device may specifically include a main board and a connecting component 2, wherein the main board may specifically include the main body 11 and The main board end portion 12 to which the connecting member 2 is connected.
  • An antenna 3 is connected to a side of the main body 11 that is away from the end 12 of the main board, and a matching network 13 is disposed between the main body 11 and the end 12 of the main board.
  • the main board main body 11 and the main board end portion 12 are integrally connected to one side of the main board main body 11, and the other side of the main board main body 11 is connected by the matching network 13. That is, there are two connection paths between the main body 11 and the main board end 12.
  • the main board main body 11 and the main board end 12 are connected through the matching network 13, in the lower part of the main body 11 of the main board, the main board
  • the main body 11 and the main body end portion 12 are an integral connection structure.
  • the main board by disposing a gap on the main board, the main board is divided into a main body 11 and a main end 12, the slit does not penetrate the main board, and the main board 11 and the main board of the main board are The end portion 12 is still integrally connected, and a matching network 13 is provided at a slit opened in the upper portion of the main board, and the main board main body 11 and the main board end portion 12 are electrically connected through the matching network 13.
  • the wireless communication device When the wireless communication device is connected to a computer or other device through its USB head, two ground paths are formed between the motherboard and the computer, wherein the first grounding path is integrally connected to the main body 11 and the main board end 12, wireless The connecting part 2 (ie, the USB head) of the communication device and the grounding end of the computer are composed, and the second grounding path is composed of the main body 11 of the main board, the matching network 13, the end portion 12 of the main board, the connecting part 2 of the wireless communication device, and the grounding end of the computer.
  • the first grounding path is integrally connected to the main body 11 and the main board end 12
  • wireless The connecting part 2 (ie, the USB head) of the communication device and the grounding end of the computer are composed
  • the second grounding path is composed of the main body 11 of the main board, the matching network 13, the end portion 12 of the main board, the connecting part 2 of the wireless communication device, and the grounding end of the computer.
  • the matching network may be specifically a low-pass filter circuit, and the low-pass filter circuit may be composed of an inductor L or a capacitor C, or a combination of any two or three of a resistor 1, a capacitor C, and an inductor L.
  • the ⁇ -pass filter circuit of the embodiment may be implemented by an inductor, may also be implemented by a capacitor, or may be realized by a combination of a resistor and a capacitor, or a combination of a resistor and an inductor, or a combination of an inductor and a capacitor, or It is realized by a combination of resistors, capacitors and inductors.
  • a pad may be reserved at a gap between the main body of the main board and the end of the main board, that is, a pad is reserved in the second ground path to access the parameter element to form a matching network.
  • the specific filtering performance of the low-pass filter circuit can be achieved by adjusting the specific parameters of the accessed parameter components.
  • This embodiment is added as a low between the main body of the wireless communication device and the end of the main board.
  • the matching network of the filter circuit so that when the surface current excited by the antenna passes through the matching network, the distribution of the surface current of the low frequency band on the main board does not change, that is, the low-frequency wireless performance of the wireless communication device does not change.
  • the distribution of the surface current on the high-frequency band is changed.
  • the high-band surface current cannot reach the USB head from the path with the matching network, but can only reach the USB head from another path.
  • the high-band surface current is in another path.
  • the present embodiment by adding a low-pass filter circuit between the main body of the wireless communication device and the end of the main board, the distribution of the surface current of the high-frequency band excited by the antenna on the main board is changed, so that the near-field energy distribution of the wireless terminal device is also Homogenization, in turn, can reduce the high frequency SAR value of the wireless communication device, that is, improve the high frequency SAR performance of the wireless communication terminal.
  • the low-frequency SAR value of the wireless communication device can generally meet the corresponding SAR index. It can be seen that the present embodiment can significantly improve the performance of the high-frequency SAR under the premise of ensuring the low-frequency wireless performance of the wireless communication device, that is, significantly improving the wireless SAR performance of communication equipment.
  • the above matching network can also be a high-pass low-resistance filter circuit.
  • the connecting member in each of the above embodiments may be a second circuit board, and may be a circuit board that can be rotated or slid relative to the main board, such as an upper circuit board of a flip phone or a slide phone.
  • the data connector in the above embodiments may be a USB connector, a serial port connector, an IEEE 1394 connector, a High Definition Multimedia Interface (hereinafter referred to as HDMI) connector, or the like.
  • the wireless communication device may be a data card, a mobile phone or the like.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

本发明提供一种无线通信设备，无线通信设备包括主板和连接部件，所述主板包括主板主体和与所述连接部件相连的主板端部，所述主板主体的远离所述主板端部的一侧连接有天线，在所述主板主体与所述主板端部之间设置有匹配网络，所述匹配网络用于控制所述天线激发的表面电流在所述主板上的分布。本发明实施例通过在无线通讯设备的主板主体与主板端部之间设置匹配网络，由匹配网络对天线激发的表面电流的分布情况进行改变，可以实现对无线通信终端的SAR性能和无线性能的同时保证，改善用户的使用感受。

Description

无线通信设备 本申请要求于 2010年 6月 21 日提交中国专利局、 申请号为
201010208039.4、 发明名称为 "无线通信设备" 的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域， 尤其涉及一种无线通信设备。 背景技术
随着通信技术的发展， 各种无线通信设备产品的应用也越来越普及， 使用者在享受无线通信设备带来的各种便利的同时， 也对无线通信设备产 生的电磁辐射对人体健康的影响日益关注。 比吸收率（ Specific Absorption Rate; 以下简称： SAR )作为一种衡量无线通信设备近身时电磁辐射强弱的 指标， 已成为许多国家和地区的移动用户终端厂商在产品包装或说明书中 标示的内容之一。其中， 目前 SAR值超标的问题成为业界一大难题。 另外， 无线性能又是衡量无线通信设备优劣的重要指标之一， 因此， 在改善无线 通信终端的 SAR性能的同时保证其无线性能成为现阶段研究的一大挑战。
在现有技术的可旋转通用串行总线（ Universal Serial Bus; 以下简称： USB )接头的无线通信设备中设置有双接地结构， 第一条接地通路由 USB 头、 柔性印刷电路板（Flexible Printed Circuit Board; 以下筒称： FPC )和 印刷电路板（Printed Circuit Board; 以下简称： PCB )主板来形成， 第二条 接地通路由 USB头、 金属弹脚、 金属转轴和 PCB主板来形成。 其通过两 条接地通路加强了 PCB主板的接地性能， 进而改善了无线通信终端的低频 无线性能。
然而，现有技术中的无线通信设备无法同时保证 S AR性能和无线性能。 发明内容
本发明实施例提供一种无线通信设备， 同时保证无线通信终端的 SAR 性能和无线性能， 改善用户的使用感受。
本发明实施例提供一种无线通信设备， 包括主板和连接部件， 所述主 板包括主板主体和与所述连接部件相连的主板端部， 所述主板主体的远离 所述主板端部的一側连接有天线， 在所述主板主体与所述主板端部之间设 置有匹配网络， 所述匹配网络用于控制所述天线激发的表面电流在所述主 板上的分布。
本发明实施例的无线通信设备， 通过在无线通讯设备的主板主体与主 板端部之间设置匹配网絡， 由匹配网络对天线激发的表面电流的分布情况 进行改变， 可以实现对无线通信终端的 SAR性能和无线性能的同时保证， ？文善用户的使用感受。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对 实施例或现有技术描述中所需要使用的附图作一筒单地介绍， 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性的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明无线通信设备实施例一的结构示意图；
图 2为本发明无线通信设备实施例二的结构示意图；
图 3为本发明无线通信设备实施例三的结构示意图。 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。
本实施例提供了一种无线通信设备， 该无线通信设备可具体包括主板 和连接部件， 主板可以具体包括主板主体和与连接部件相连的主板端部。 其中， 主板主体的远离主板端部的一侧连接有天线， 在主板主体与主板端 部之间设置有匹配网络， 该匹配网络用于控制天线激发的表面电流在无线 通信设备用主板上的分布情况。 在本实施例中， 当无线通信设备通过其连 接部件与电脑或其他设备连接时， 电脑可以相当于接地端， 则通过天线、 主板主体、 匹配网洛、 主板端部、 连接部件和电脑构成了主板的接地通路， 天线激发的表面电流从主板主体到达电脑接地端。 本实施例中在主板主体 与主板端部之间设置匹配网络， 将主板主体与主板端部进行电连接。 由于 本实施例中的匹配网絡用于控制天线激发的表面电流的分布情况， 通过设 置匹配网络之后， 表面电流在主板上的分布情况发生改变， 而无线通信设 备的 SAR性能和无线性能与表面电流在主板上的分布情况相关， 则通过在 主板上增设匹配网络可以改善无线通信设备的 SAR性能和无线性能。
本实施例提供了一种无线通信设备， 通过在无线通讯设备的主板主体 与主板端部之间设置匹配网络， 由匹配网络对天线激发的表面电流的分布 情况进行改变， 可以实现对无线通信终端的 SAR性能和无线性能的同时保 证， 改善用户的使用感受。
图 1为本发明无线通信设备实施例一的结构示意图， 如图 1所示， 本 实施例提供了一种无线通信设备， 本实施例提供的无线通信设备具体为具 有可旋转式数据接头的无线通信设备， 即无线通信设备中的连接部件 2为 可旋转式数据接头， 该数据接头与所述主板可通过转轴相对转动， 本实施 例中的数据接头可以具体为 USB头， 后续以 USB头为例进行说明。 其中， 该无线通信设备可以具体包括主板和连接部件 2， 其中， 主板可以具体包括 主板主体 11和与连接部件 2相连的主板端部 12。 其中， 在上述图 1 中， 主板主体 11的远离主板端部 12的一侧连接有 天线 3， 在主板主体 11与主板端部 12之间设置有匹配网絡 13。 在本实施 例中， 主板主体 11与主板端部 12在主板主体 11的一侧一体式连接， 在主 板主体 11的另一侧通过匹配网络 13连接， 且主板端部 12通过第一金属弹 脚 141、 金属转轴 142、 第二金属弹脚 143和连接体 15与 USB头连接， 其 中，连接体 15可以具为柔性印刷电路板 FPC或导线。 当无线通信设备通过 其 USB头与电脑连接时， 本实施例也在主板上形成两条接地通路， 第一条 接地通路由一体式连接的主板主体 11和主板端部 12、 连接体 15、 USB头 以及电脑接地端组成， 第二条接地通路由主板主体 11、 匹配网络 13、 主板 端部 12、 第一金属弹脚 141、 金属转轴 142、 第二金属弹脚 143、 USB头以 及电脑接地端组成。 其中， 第一金属弹脚 141的一端与 USB头连接， 另一 端与金属转轴 142连接； 而第二金属弹脚 143的一端与金属转轴 142连接， 另一端与匹配网络 13连接。 本实施例中通过在主板与 USB头之间设置由 第一金属弹脚、 金属转轴和第二金属弹脚， 使得 USB头可以以金属转轴为 轴进行旋转， 例如旋转 90度、 180度， 以满足用户具体使用情况的需求， 图 1中具体为 USB头旋转 180度后的无线通信设备的结构示意。
在本实施例提供的无线通讯设备中， 如图 2所示， 图 2为本发明无线通信 设备实施例二的结构示意图， 上述的第一金属弹脚和第二金属弹脚也可以被一 体式的金属弹片 140取代， 金属弹片 140与金属转轴 142接触（金属弹片 140 也可不与金属转轴 142接触， 当金属转轴 142并非金属时可以如此）。 金属弹 片 140的形状可以如图 2为直条形， 也可为其他的形状， 例如折线形等。
具体地， 本实施例中的匹配网络可以具体为低通滤波电路， 该低通滤 波电路可以由电感 L或电容 C构成， 或由电阻1、 电容 C和电感 L的任意 两种或三种的组合来实现。 即本实施例的低通滤波电路可以由电感实现， 也可以由电容实现， 还可以由电阻和电容的组合实现， 或者由电阻和电感 的组合实现， 或者由电感和电容的组合实现， 还可以由电阻、 电容和电感 的组合来实现。 本实施例可以在主板主体与主板端部之间的缝隙处预留焊 盘， 即在上述第二条接地通路中预留焊盘， 以接入参数元件， 来形成匹配 网络。 其中， 低通滤波电路的具体滤波性能可以通过对接入的参数元件的 具体参数进行调整来实现。
本实施例通过在无线通讯设备的主板主体与主板端部之间加入作为低 通滤波电路的匹配网络， 可以保证低频段表面电流在主板上的分布情况不 发生变化， 即可以保证无线通信设备的低频无线性能不发生变化； 而高频 段表面电流在主板上的分布情况进行了改变， 高频段表面电流无法从具有 匹配网络的通路到达 USB头， 而只能从另外一条通路到达 USB头，则高频 段表面电流在另外一条通路上集中化， 使得在 USB头靠近连接设备 (如电 脑）处形成了除过主板上原有 SAR热点外的另一个 SAR热点， 使得 USB 头和连接设备可以分担更多的微波能量， 进而使得主板上的近场能量分布 更加均匀化， 减小了主板上原 S AR热点的最大值，从而改善 S AR性能。 由 于无线通信终端的 SAR性能与无线终端设备的近场能量的分布均匀度有直 接关系， 近场能量分布越均匀， 则 SAR的热点的最大值越小， 即无线通信 终端的 SAR值越低。
因此， 本实施例通过在无线通讯设备的主板主体与主板端部之间增设 低通滤波电路， 改变了天线激发的高频段表面电流在主板上的分布， 使得 无线终端设备的近场能量分布也均匀化， 进而可以降低无线通信设备的高 频 SAR值， 即改善无线通信终端的高频 SAR性能。 由此可见， 当无线通信 设备的可旋转式 USB头旋转 90度或 180度时， 通过其中设置的匹配网络， 均可以在保证无线通信设备的低频无线性能良好的前提下， 显著改善无线 通信设备的 SAR性能。
进一步地， 继续参照上述图 1 , 本实施例中主板主体与主板端部之间设 置的匹配网络还可以具体为高通低阻滤波电路， 该高通低阻滤波电路用于 在 USB头旋转时保持天线激发的低频段表面电流在主板上的分布不变。 在 在本实施例中， 在主板主体与主板端部之间设置作为高通低阻滤波器的匹 配网络， 此网络对主板上的由于天线激发而引起的低频电流起扼流作用， 则本实施例通过设置此网络， 来保障低频段表面电流分布不受应用条件的 改变而改变。无线通信设备的 USB头的旋转场景发生变化时，如 USB头从 90度旋转到 180度， 尽管旋转场景变化引起接地电路的结构发生变化， 使 得表面电流的分布情况发生变化， 从而影响不同应用场景下的无线性能。
本实施例通过设置作为高通低阻滤波器的匹配网络，弱化了电脑的接地 端对 USB头的不同旋转场景下主板上电流分布的影响， 进而在保证高频无 线性能良好的前提下， 保持低通无线性能不发生变化， 以解决带有可旋转 式 USB头的无线通信设备在 USB头旋转时所造成的各种旋转场景下的无线 性能差异化问题。
在本实施例中， 高通低阻滤波电路可以由电感 L或电容 C构成， 或由 电阻 R、 电容 C和电感 L的任意两种或三种的组合来实现。 即本实施例的 ^^通滤波电路可以由电感实现， 也可以由电容实现， 还可以由电阻和电容 的组合实现， 或者由电阻和电感的组合实现， 或者由电感和电容的组合实 现， 还可以由电阻、 电容和电感的组合来实现。 本实施例可以在主板主体 与主板端部之间的缝隙处预留焊盘， 即在上述第二条接地通路中预留焊盘， 以接入参数元件， 来形成高通低阻滤波电路。 其中， 高通低阻滤波电路的 具体滤波性能可以通过对接入的参数元件的具体参数进行调整来实现。
图 3为本发明无线通信设备实施例三的结构示意图， 如图 3所示， 本 实施例提供了一种无线通信设备， 本实施提供的无线通信设备为具有直插 式数据接头的无线通信设备， 即无线通信设备中的连接部件 2为直插式数 据接头， 其中数据接头可以相对所述主板滑动的， 例如可以沿着主板长边 的方向滑动或者与该方向成 90度的方向上滑动。 本实施例中的数据接头可 以具体为 USB头， 后续以 USB头为例进行说明。 其中， 该无线通信设备可 以具体包括主板和连接部件 2， 其中， 主板可以具体包括主板主体 11和与 连接部件 2相连的主板端部 12。 其中， 主板主体 11的远离主板端部 12的 一侧连接有天线 3 , 在主板主体 11与主板端部 12之间设置有匹配网络 13。 主板主体 11与主板端部 12在主板主体 11的一侧一体式连接， 在主板主体 11的另一侧则通过匹配网络 13连接。即主板主体 11与主板端部 12之间有 两条连接通路， 在图中主板主体 11的上部， 通过匹配网络 13连接主板主 体 11和主板端部 12, 在图中主板主体 11的下部， 主板主体 11和主板端部 12为一体式连接结构。
具体地， 继续参见上述图 2, 本实施例通过在主板上设置一条缝隙， 将 主板分为主板主体 11和主板端部 12， 该缝隙并未穿透主板， 在主板的下部 主板主体 11和主板端部 12仍一体式连接， 在主板的上部开设的缝隙处设 置匹配网络 13, 通过匹配网络 13将主板主体 11和主板端部 12电连接。 当 无线通信设备通过其 USB头与电脑或其他设备连接时， 便形成主板与电脑 之间的两条接地通路， 其中第一条接地通路由一体式连接的主板主体 11和 主板端部 12、 无线通信设备的连接部件 2 (即 USB头） 以及电脑接地端组 成， 第二条接地通路则由主板主体 11、 匹配网络 13、 主板端部 12、 无线通 信设备的连接部件 2以及电脑接地端组成。
在本实施例中， 匹配网络可以具体为低通滤波电路， 该低通滤波电路 可以由电感 L或电容 C构成， 或由电阻1、 电容 C和电感 L的任意两种或 三种的组合来实现。 即本实施例的氐通滤波电路可以由电感实现， 也可以 由电容实现， 还可以由电阻和电容的组合实现， 或者由电阻和电感的组合 实现， 或者由电感和电容的组合实现， 还可以由电阻、 电容和电感的组合 来实现。 本实施例可以在主板主体与主板端部之间的缝隙处预留焊盘， 即 在上述第二条接地通路中预留焊盘， 以接入参数元件， 来形成匹配网络。 其中， 低通滤波电路的具体滤波性能可以通过对接入的参数元件的具体参 数进行调整来实现。
本实施例通过在无线通讯设备的主板主体与主板端部之间加入作为低 通滤波电路的匹配网络， 这样当天线激发的表面电流经过匹配网络之后， 可以保证低频段表面电流在主板上的分布情况不发生变化， 即可以保证无 线通信设备的低频无线性能不发生变化。 而高频段表面电流在主板上的分 布情况进行了改变， 高频段表面电流无法从具有匹配网络的通路到达 USB 头， 而只能从另外一条通路到达 USB头， 则高频段表面电流在另外一条通 路上集中化，使得在 USB头附近形成一个了除过主板上原有 SAR热点外的 另一个 S AR热点， 使得 USB头靠近连接设备处可以分担更多的微波能量， 进而使得主板上的近场能量分布更加均勾化， 减小了主板上原 SAR热点的 最大值，从而改善 SAR性能。 由于无线通信终端的 SAR性能与无线终端设 备的近场能量的分布均匀度有直接关系， 近场能量分布越均匀， 则 SAR的 热点的最大值越小， 即无线通信终端的 SAR值越低。
因此， 本实施例通过在无线通讯设备的主板主体与主板端部之间增设 低通滤波电路， 改变了天线激发的高频段表面电流在主板上的分布， 使得 无线终端设备的近场能量分布也均匀化， 进而可以降低无线通信设备的高 频 SAR值， 即改善无线通信终端的高频 SAR性能。而目前无线通信设备的 低频 SAR值通常可以满足相应的 SAR指标， 由此可见，本实施例可以在保 证无线通信设备的低频无线性能良好的前提下， 显著提高高频 SAR性能， 即显著改善无线通信设备的 SAR性能。
当然， 上述的匹配网络也可以为高通低阻滤波电路。
另外， 需要说明的是， 上述各实施例中的连接部件， 还可以是第二电 路板， 可以是能够相对所述主板转动或滑动的电路板， 例如翻盖手机或者 滑盖手机的上电路板。 以上各实施例中的数据接头可以是 USB接头、 串口 接头、 IEEE 1394 接头、 高清晰度多媒体 ( High Definition Multimedia Interface; 以下简称： HDMI )接头等。 所述的无线通讯设备可以是数据卡、 手机等设备。
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、 一种无线通信设备， 其特征在于， 包括主板和连接部件， 所述主板 包括主板主体和与所述连接部件相连的主板端部， 所述主板主体的远离所 述主板端部的一侧连接有天线， 在所述主板主体与所述主板端部之间设置 有匹配网络， 所述匹配网络用于控制所述天线激发的表面电流在所述主板 上的分布。
2、 根据权利要求 1所述的设备， 其特征在于， 所述连接部件与所述主 板可通过转轴相对转动， 所述主板主体与所述主板端部在所述主板主体的 一侧一体式连接， 在所述主板主体的另一侧通过所述匹配网络连接； 所述 主板端部通过金属弹片和连接体与所述连接部件连接。
3、 根据权利要求 1所述的设备， 其特征在于， 所述连接部件与所述主 板可通过金属转轴相对转动， 所述主板主体与所述主板端部在所述主板主 体的一侧一体式连接， 在所述主板主体的另一侧通过所述匹配网络连接； 所述主板端部通过第一金属弹脚、 所述金属转轴、 第二金属弹脚和连接体 与所述连接部件连接； 所述第一金属弹脚的一端与所述连接部件连接， 另 一端与所述金属转轴连接； 所述第二金属弹脚的一端与所述金属转釉连接， 另一端与所述匹配网络连接。
4、 根据权利要求 1所述的设备， 其特征在于， 所述连接部件为直插式 数据接头， 所述主板主体与所述主板端部在所述主板主体的一侧一体式连 接， 在所述主板主体的另一侧通过所述匹配网络连接。
5、 根据权利要求 2所述的设备， 其特征在于， 所述连接部件为第二电 路板。
6、 根据权利要求 3所述的设备， 其特征在于， 所述连接部件为第二电 路板。
7、 根据权利要求 1所述的设备， 其特征在于， 所述连接部件为可相对 所述主板滑动的第二电路板， 所述主板主体与所述主板端部在所述主板主 体的一侧一体式连接， 在所述主板主体的另一侧通过所述匹配网络连接。
8、 根据权利要求 1-7中任一项所述的设备， 其特征在于， 所述匹配网 络为低通滤波电路， 用于改变所述天线激发的高频段表面电流在所述主板 上的分布。
9、 根据权利要求 1-7中任一项所述的设备， 其特征在于， 所述匹配网 络为高通低阻滤波电路， 用于保持所述天线激发的低频段表面电流在所述 主板上的分布不变。
10、 根据权利要求 8所述的设备， 其特征在于， 所述低通滤波电路由 电感、 电容， 或电感、 电容和电阻的任意两种或三种的组合构成。
11、 根据权利要求 9所述的设备， 其特征在于， 所述高通低阻滤波电 路由电感、 电容， 或电感、 电容和电阻的任意两种或三种的组合构成。
12、 根据权利要求 2、 3、 5或 6所述的设备， 其特征在于， 所述连接 体为柔性印刷电路板 FPC或导线。
PCT/CN2011/075172 2010-06-21 2011-06-02 无线通信设备 WO2011160543A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2665123A1 (en) * 2012-05-16 2013-11-20 Huawei Device Co., Ltd. Wireless communication device and method for manufacturing said device

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867385B (zh) * 2010-06-21 2013-11-06 华为终端有限公司 无线通信设备
WO2012066563A2 (en) * 2010-11-16 2012-05-24 Muthukumar Prasad Smart radiation protection system for mobile device to reduce sar with actively tunable electromagnetic shielding screen works by sensing device proximity environment with property, position, orientation, signal quality and operating modes
CN102158246B (zh) * 2011-01-27 2013-11-06 华为终端有限公司 无线终端
CN102176344B (zh) * 2011-02-01 2013-01-02 华为终端有限公司 用于数据卡可旋转插头的线缆及数据卡
CN102324626A (zh) * 2011-08-31 2012-01-18 华为终端有限公司 无线终端
CN102930328B (zh) 2012-09-27 2016-03-02 中兴通讯股份有限公司 数据卡和数据交互系统
CN104284454B (zh) * 2013-07-01 2019-02-15 中兴通讯股份有限公司 一种接地结构及旋转式无线网卡
US9812773B1 (en) * 2013-11-18 2017-11-07 Amazon Technologies, Inc. Antenna design for reduced specific absorption rate
US9407003B1 (en) 2014-05-27 2016-08-02 Amazon Technologies, Inc. Low specific absorption rate (SAR) antenna structure
CN106329066A (zh) * 2016-10-19 2017-01-11 深圳市信维通信股份有限公司 一种降低高频手机天线sar值的系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101562460A (zh) * 2009-05-22 2009-10-21 惠州Tcl移动通信有限公司 移动通信终端的无线收发装置
CN101674674A (zh) * 2009-09-18 2010-03-17 深圳华为通信技术有限公司 无线终端设备
CN101702461A (zh) * 2009-11-06 2010-05-05 中兴通讯股份有限公司 具有多媒体广播功能的数据卡及其天线构建方法
US20100142597A1 (en) * 2008-12-07 2010-06-10 Qualcomm Incorporated Digital mboile usb transceiver
CN101867385A (zh) * 2010-06-21 2010-10-20 华为终端有限公司 无线通信设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100446506B1 (ko) * 2000-11-13 2004-09-04 삼성전자주식회사 휴대 단말기
US7280856B2 (en) * 2003-05-24 2007-10-09 Samsung Electronics Co., Ltd. Portable terminal having tuner for changing radiation pattern
KR100539935B1 (ko) * 2003-08-08 2005-12-28 삼성전자주식회사 휴대 단말기의 그라운드 연결장치
CN201064050Y (zh) * 2007-06-08 2008-05-21 中兴通讯股份有限公司 一种接口可旋转的usb数据卡
US8421685B2 (en) * 2009-05-07 2013-04-16 Ethertronics, Inc. Spatial filter for near field modification in a wireless communication device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100142597A1 (en) * 2008-12-07 2010-06-10 Qualcomm Incorporated Digital mboile usb transceiver
CN101562460A (zh) * 2009-05-22 2009-10-21 惠州Tcl移动通信有限公司 移动通信终端的无线收发装置
CN101674674A (zh) * 2009-09-18 2010-03-17 深圳华为通信技术有限公司 无线终端设备
CN101702461A (zh) * 2009-11-06 2010-05-05 中兴通讯股份有限公司 具有多媒体广播功能的数据卡及其天线构建方法
CN101867385A (zh) * 2010-06-21 2010-10-20 华为终端有限公司 无线通信设备

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2665123A1 (en) * 2012-05-16 2013-11-20 Huawei Device Co., Ltd. Wireless communication device and method for manufacturing said device
US9483434B2 (en) 2012-05-16 2016-11-01 Huawei Device Co., Ltd. Wireless communication device and method for manufacturing wireless communication device

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US9112557B2 (en) 2015-08-18
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