WO2016112617A1 - 天线互扰隔离装置、无线网卡及终端 - Google Patents

天线互扰隔离装置、无线网卡及终端 Download PDF

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Publication number
WO2016112617A1
WO2016112617A1 PCT/CN2015/081007 CN2015081007W WO2016112617A1 WO 2016112617 A1 WO2016112617 A1 WO 2016112617A1 CN 2015081007 W CN2015081007 W CN 2015081007W WO 2016112617 A1 WO2016112617 A1 WO 2016112617A1
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Prior art keywords
antenna
mutual interference
gold finger
isolation device
antenna mutual
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PCT/CN2015/081007
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English (en)
French (fr)
Inventor
刘洋
舒超凡
石青松
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中兴通讯股份有限公司
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Publication of WO2016112617A1 publication Critical patent/WO2016112617A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an antenna mutual interference isolation device, a wireless network card, and a terminal.
  • antenna not only directly affects the transceiver performance of wireless terminal equipment, but also affects the overall size and aesthetics of wireless terminals. Therefore, the design can meet the structural requirements, customer requirements, and antenna performance indicators. The required antennas have become a problem currently facing the industry.
  • the planar antenna has the advantages of light weight, small volume, low profile, easy integration, low cost, and easy fabrication, and can meet the requirements of the antenna size of the mobile terminal device, but now the antenna needs to be compatible with multiple communication standards at the same time, therefore, It is required to be free from interference from data services in other frequency bands. At present, mutual interference between adjacent antennas becomes a major factor affecting antenna performance.
  • Embodiments of the present invention provide an antenna mutual interference isolation device, a wireless network card, and a terminal to solve the problem of mutual interference between adjacent antennas in related art.
  • an embodiment of the present invention provides an antenna mutual interference isolation device, including:
  • the coupling portion includes a left side gold finger and a right side gold finger, the left side gold finger extending from the isolation portion from left to right and leaving a gap with the right side isolation portion;
  • the right gold finger extends from the partition to the left and left with a gap between the partitions on the left side; the left and right gold fingers are spaced apart in the clear area.
  • the partition, the left gold finger and the right gold finger are each made of a conductive medium.
  • the conductive medium is a conductive foam, a conductive cloth, a copper foil or an aluminum foil.
  • the clearance area is a non-closed area on the partition.
  • the present invention also provides a wireless network card, including:
  • At least one of the above antenna mutual interference isolation devices At least one of the above antenna mutual interference isolation devices
  • At least two antennas At least two antennas
  • At least one antenna is provided with the antenna mutual interference isolation device.
  • the antenna mutual interference isolation device is disposed at a clearance position of the antenna corresponding thereto.
  • the antenna mutual interference isolation device is not connected to the ground of the printed circuit board PCB.
  • the embodiment of the present invention further provides a terminal, including:
  • At least one of the above antenna mutual interference isolation devices At least one of the above antenna mutual interference isolation devices
  • At least two antennas At least two antennas
  • At least one antenna is provided with the antenna mutual interference isolation device.
  • the antenna mutual interference isolation device is disposed at a clearance position of the antenna corresponding thereto.
  • the antenna mutual interference isolation device is not connected to the ground of the printed circuit board PCB.
  • the technical solution of the embodiment of the invention can effectively eliminate the clutter interference between the antennas, and weaken the mutual coupling between the two antennas, effectively reduce the mutual interference between the antennas, and can improve the antenna. Sensitivity, which in turn improves antenna performance.
  • FIG. 1 is a schematic structural diagram of an antenna mutual interference isolation device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of still another antenna mutual interference isolation device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a wireless network card in an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a wireless network card of an antenna mutual interference isolation device according to an embodiment of the present invention.
  • an embodiment of the present invention relates to an antenna mutual interference isolation device, including:
  • Separating portion 6 provided with a clearance area
  • the coupling portion 5 includes a left side gold finger and a right side gold finger, and the left side gold finger extends from the isolation portion from left to right and leaves a gap with the right side isolation portion;
  • the right gold finger extends from the partition to the left and left, and a gap is left between the partition on the left side; the left gold finger and the right gold finger are spaced apart in the clearance area.
  • the isolation portion 6 and the coupling portion 5 are all made of a conductive medium; the conductive medium may be a conductive foam, a conductive cloth, a copper foil or an aluminum foil.
  • the clearance area of the partition portion 6 means that a part of the partition portion 6 is excavated to form a blank area (the area has no partition portion), and the area is a non-closed area, that is, the clearance area has at least one opening and the partition portion 6 The areas are connected so that the clearance area is a non-closed area.
  • the shape of the antenna mutual interference isolation device can be adjusted according to the needs of the design layout of the wireless network card or the terminal, for example, it can be square, circular, or even irregular; the clearance area can also be square, round, or even It is an irregular graphic.
  • the embodiment relates to an LTE (Long Term Evolution) wireless network card product, which includes two main antennas and a secondary antenna, and the layout mode adopts a conventional layout.
  • the LTE wireless network card is required to satisfy the data transmission services of LTE bands 1, 2, 4, 5, 8, 17, and 28.
  • the auxiliary antenna is placed in the vicinity of the USB (Universal Serial Bus) port 1 of the wireless terminal, and the auxiliary antenna headroom position 2 is set under the USB port 1; the auxiliary antenna feeding point 4 is located in the auxiliary One side of the antenna headroom position 2.
  • the main antenna is placed at the top of the network card and the main antenna headroom position 3 is set; the main antenna feed point 7 is set above the main antenna headroom position 3.
  • Both antennas are in the form of a conventional bracket plus FPC (Flexible Printed Circuit Board).
  • the antenna layout of the entire product is already the best layout solution, but during the debugging process, the mutual interference between the main antennas is found to be very serious.
  • the low-frequency TRP (total radiated powe) of the main antenna is as follows:
  • the auxiliary antenna receiving sensitivity TIS (Total Isotropic Sensitivity) indicators are as follows:
  • the low-band indicator can not meet the requirements of the product; the high-frequency band can meet the requirements because of the small space required.
  • the antenna mutual interference isolation device of the above embodiment is used to improve performance.
  • the antenna mutual interference isolation device adopts a semi-enclosed structure, and uses the coupling between the golden fingers to attenuate the corresponding frequency band to reduce mutual interference. Purpose, and the network does not need to be grounded.
  • the antenna mutual interference isolation device is placed in the clearance position 2 of the auxiliary antenna and is not connected to the main board ground. That is, the auxiliary antenna is mounted on one side of a PCB (Printed Circuit Board), and the antenna mutual interference isolating device is installed at a position corresponding to the auxiliary antenna on the back side of the PCB board (the clearance position of the auxiliary antenna).
  • PCB Print Circuit Board
  • the average transmit power index (TRP) of the main antenna is as follows:
  • the secondary antenna receiving sensitivity (TIS) indicators are as follows:
  • the antenna mutual interference isolation device may also be installed in the main antenna clearance position 3, or the antenna mutual interference isolation device may be installed in the auxiliary antenna clearance position 2 and the main antenna clearance position 3, respectively, to reduce mutual interference between the antennas, and the antenna may be improved. Sensitivity.
  • the mutual interference of other frequency bands can be eliminated, and can be extended to other wireless terminal products.
  • the antenna mutual interference isolation device of the above embodiment may also be disposed on a terminal product such as a mobile phone or a tablet computer.
  • the antenna mutual interference isolation device may be installed through at least one antenna clearance position. To reduce the mutual interference between the antennas, it is necessary to note that the antenna mutual interference isolation device is not connected to the ground of the printed circuit board PCB.
  • the technical solution of the embodiment of the invention can effectively eliminate the clutter interference between the antennas, and weaken the coupling interference between the two antennas, effectively reduce the mutual interference between the antennas, and improve the sensitivity of the antenna. , in turn, improve the performance of the antenna; especially suitable for ultra-compact terminal products such as LTE wireless network cards.
  • an antenna mutual interference isolation device, a wireless network card, and a terminal provided by the embodiments of the present invention have the following beneficial effects: the interference of the clutter between the antennas can be effectively eliminated, and the two antennas can be weakened.
  • the coupling interference effectively reduces the mutual interference between the antennas, thereby improving the sensitivity of the antenna and enhancing the performance of the antenna.

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Abstract

本发明公开了一种天线互扰隔离装置、无线网卡及终端，该装置包括：设置有净空区域的隔离部，以及，安装在净空区域的耦合部，其中耦合部包括左侧金手指和右侧金手指，所述左侧金手指从隔离部由左向右延伸、且与右侧的隔离部之间留有间隙；所述右侧金手指从隔离部由右向左延伸、且与左侧的隔离部之间留有间隙；所述左侧金手指和右侧金手指在所述净空区域内间隔设置。本发明实施例的技术方案可以有效的消除天线之间的耦合出的杂波干扰，并削弱了两个天线之间的耦合干扰，有效地减小天线之间的互扰，可以提升天线的灵敏度，进而提升天线的性能。

Description

天线互扰隔离装置、无线网卡及终端 技术领域
本发明涉及通讯技术领域，特别是涉及一种天线互扰隔离装置、无线网卡及终端。
背景技术
随着无线通信技术发展，移动终端越来越趋向于小型化、低成本、外观超薄时尚的方向发展，同时，也越来越需要同时兼容多个通信标准，要求高性能。这就要求移动终端的天线，不仅体积要小，而且要有宽频带，并且还不受其他频段的数据业务干扰。
天线作为无线终端产品的重要组成部分，不仅直接影响无线终端设备的收发性能，也影响着无线终端的整体尺寸和美观，因此设计一款既可以满足结构要求、客户要求，也可以满足天线性能指标要求的天线成为业界目前面临的难题。
平面天线以其具有重量轻，体积小，剖面低，易于集成，成本低，易于制作等优点，能够满足移动终端设备对天线体积的要求，但是现在天线的需要同时兼容多个通信标准，因此，要求不受其他频段的数据业务干扰。而目前相邻天线之间的互扰成为影响天线性能的主要因素。
发明内容
本发明实施例提供了一种天线互扰隔离装置、无线网卡及终端，以解决相关技术相邻天线之间的互扰的问题。
为解决上述技术问题，一方面，本发明实施例提供一种天线互扰隔离装置，包括：
设置有净空区域的隔离部，以及，
安装在净空区域的耦合部，其中耦合部包括左侧金手指和右侧金手指，所述左侧金手指从隔离部由左向右延伸、且与右侧的隔离部之间留有间隙；所述右侧金手指从隔离部由右向左延伸、且与左侧的隔离部之间留有间隙；所述左侧金手指和右侧金手指在所述净空区域内间隔设置。
进一步，所述隔离部、左侧金手指和右侧金手指均由导电介质制成。
进一步，所述导电介质为导电泡棉、导电布、铜箔或铝箔。
进一步，所述净空区域在隔离部上为非封闭区域。
另一方面，本发明还提供一种无线网卡，包括：
至少一个上述的天线互扰隔离装置；
至少两个天线；
其中，至少有一个天线设置了所述天线互扰隔离装置。
进一步，所述天线互扰隔离装置设置在与之对应的天线的净空位置处。
进一步，所述天线互扰隔离装置与印制电路板PCB的地不连接。
再一方面，本发明实施例还提供一种终端，包括：
至少一个上述的天线互扰隔离装置；
至少两个天线；
其中，至少有一个天线设置了所述天线互扰隔离装置。
进一步，所述天线互扰隔离装置设置在与之对应的天线的净空位置处。
进一步，所述天线互扰隔离装置与印制电路板PCB的地不连接。
本发明具有益效果如下：
本发明实施例的技术方案可以有效的消除天线之间的耦合出的杂波干扰，并消弱了两个天线之间的相互耦合，有效地减小天线之间的互扰，可以提升天线的灵敏度，进而提升天线的性能。
附图说明
图1是本发明实施例中一种天线互扰隔离装置的结构示意图；
图2是本发明实施例中再一种天线互扰隔离装置的结构示意图；
图3是本发明实施例中无线网卡的结构示意图；
图4是本发明实施例中天线互扰隔离装置的无线网卡的结构示意图。
具体实施方式
以下结合附图以及实施例，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，并不限定本发明。
如图1、2所示，本发明实施例涉及一种天线互扰隔离装置，包括：
设置有净空区域的隔离部6，以及，
安装在净空区域的耦合部5，其中耦合部5包括左侧金手指和右侧金手指，左侧金手指从隔离部由左向右延伸、且与右侧的隔离部之间留有间隙；右侧金手指从隔离部由右向左延伸、且与左侧的隔离部之间留有间隙；左侧金手指和右侧金手指在净空区域内间隔设置。
其中，隔离部6、耦合部5(左侧金手指和右侧金手指)均由导电介质制成；导电介质可以为导电泡棉、导电布、铜箔或铝箔等材料。
隔离部6的净空区域是指在隔离部6上挖去一部分，形成一块空白区域(该区域没有隔离部)，该区域为非封闭区域，即净空区域至少有一个开口与隔离部6之外的区域连通，使净空区域为非封闭区域。
天线互扰隔离装置的形状可以根据无线网卡或终端的设计布局的需要进行调整，例如，可以为方形，也可以是圆形，甚至是不规则图形；净空区域也可以为方形、圆形，甚至是不规则图形。
如图3、4所示，本实施例涉及一款LTE(Long Term Evolution，长期演进)无线网卡产品，包括主、辅两个天线，布局方式采用常规布局。LTE无线网卡要求满足LTE band1、2、4、5、8、17、28的数据传输业务。
如图3所示，辅天线放置在无线终端靠近USB(Universal Serial Bus，通用串行总线)端口1的地方，并在USB端口1下方设置辅天线净空位置2；辅天线馈电点4位于辅天线净空位置2的一侧。主天线放置在网卡顶端，并设置主天线净空位置3；主天线馈电点7设置在主天线净空位置3的上方。两个天线均采用常规的支架加FPC(Flexible Printed Circuit board，挠性印刷电路板)形式。整个产品的天线布局已经是最佳布局方案，但是在调试过程中，发现主辐天线之间的互扰非常严重。实际测试中，主天线的低频段TRP(total radiated powe，总辐射功率)指标如下：
band5：17.3dB，band8：16.2dB，band28：15.7dB。
辅天线接收灵敏度TIS(Total Isotropic Sensitivity，全向灵敏度)指标如下：
band5：-86.7dB，band8：-87.8dB，band28：-85.9dB。
可见低频段指标不能满足产品的要求；高频段由于需要地的空间较小，指标能符合要求。
采用上述实施例的天线互扰隔离装置来改善性能，如图2所示，天线互扰隔离装置采用半包围结构，利用金手指之间的耦合来对相应的频段进行衰减，达到减少互扰的目的，且该网络不需要接地。将天线互扰隔离装置放置于辅天线的净空位置2，且与主板地不连接。即辅天线安装在PCB(Printed Circuit Board，印制电路板)的一面，在PCB板的背面与辅天线对应的位置(辅天线的净空位置)安装天线互扰隔离装置。
此时测试，主天线的发射功率指标(TRP)均值如下：
band5：19.6dB，band8：20.2dB，band28：18.7dB。
辅天线接收灵敏度(TIS)指标如下：
band5：-89.1dB，band8：-89.06dB，band28：-88.01dB。
可见，指标符合产品标准，说明天线之间的互扰已经大大降低了。
天线互扰隔离装置也可以安装在主天线净空位置3，或者在辅天线净空位置2和主天线净空位置3分别安装天线互扰隔离装置，以减小天线之间的互扰，可以提升天线的灵敏度。
另外，通过改变隔离装置的金手指的尺寸以及整体形状的尺寸，可以消除其他频段的互扰，可以推广到其他无线终端产品中。
上述实施例的天线互扰隔离装置也可以设置在手机、平板电脑等终端产品上，当产品包括两个或两个以上天线时，可以通过至少在一个天线的净空位置安装天线互扰隔离装置来减少天线间的互扰，安装时，需要注意，天线互扰隔离装置与印制电路板PCB的地不连接。
本发明实施例的技术方案可以有效的消除天线之间的耦合出的杂波干扰，并削弱了两个天线之间的耦合干扰，有效地减小天线之间的互扰，可以提升天线的灵敏度，进而提升天线的性能；尤其适用于目前LTE无线网卡等超小型化终端产品。
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。
工业实用性
如上所述，本发明实施例提供的一种天线互扰隔离装置、无线网卡及终端具有以下有益效果：能够有效地消除天线之间的耦合出的杂波干扰，并能够削弱两个天线之间的耦合干扰，有效地降低天线之间的互扰，进而提升天线的灵敏度，增强天线的使用性能。

Claims (10)

  1. 一种天线互扰隔离装置，包括：
    设置有净空区域的隔离部，以及，
    安装在净空区域的耦合部，其中耦合部包括左侧金手指和右侧金手指，所述左侧金手指从隔离部由左向右延伸、且与右侧的隔离部之间留有间隙；所述右侧金手指从隔离部由右向左延伸、且与左侧的隔离部之间留有间隙；所述左侧金手指和右侧金手指在所述净空区域内间隔设置。
  2. 如权利要求1所述的天线互扰隔离装置，其中，所述隔离部、左侧金手指和右侧金手指均由导电介质制成。
  3. 如权利要求2所述的天线互扰隔离装置，其中，所述导电介质为导电泡棉、导电布、铜箔或铝箔。
  4. 如权利要求1至3中任一项所述的天线互扰隔离装置，其中，所述净空区域在隔离部上为非封闭区域。
  5. 一种无线网卡，包括：
    至少一个权利要求1至4中任一项所述的天线互扰隔离装置；
    至少两个天线；
    其中，至少有一个天线设置了所述天线互扰隔离装置。
  6. 如权利要求5所述的无线网卡，其中，所述天线互扰隔离装置设置在与之对应的天线的净空位置处。
  7. 如权利要求5或6所述的无线网卡，其中，所述天线互扰隔离装置与印制电路板PCB的地不连接。
  8. 一种终端，包括：
    至少一个权利要求1至4中任一项所述的天线互扰隔离装置；
    至少两个天线；
    其中，至少有一个天线设置了所述天线互扰隔离装置。
  9. 如权利要求8所述的终端，其中，所述天线互扰隔离装置设置在与之对应的天线的净空位置处。
  10. 如权利要求8或9所述的终端，其中，所述天线互扰隔离装置与印制电路板PCB的地不连接。
PCT/CN2015/081007 2015-01-14 2015-06-08 天线互扰隔离装置、无线网卡及终端 WO2016112617A1 (zh)

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CN107919889A (zh) * 2017-11-20 2018-04-17 北京小米移动软件有限公司 耦合干扰的干扰源检测方法及装置
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