WO2013182114A1 - Wireless device and method for reducing aerial mutual interference therein - Google Patents

Wireless device and method for reducing aerial mutual interference therein Download PDF

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Publication number
WO2013182114A1
WO2013182114A1 PCT/CN2013/079054 CN2013079054W WO2013182114A1 WO 2013182114 A1 WO2013182114 A1 WO 2013182114A1 CN 2013079054 W CN2013079054 W CN 2013079054W WO 2013182114 A1 WO2013182114 A1 WO 2013182114A1
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Prior art keywords
antenna
wireless device
microstrip line
decoupling circuit
decoupling
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PCT/CN2013/079054
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French (fr)
Chinese (zh)
Inventor
马金萍
孙飞飞
刘洋
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中兴通讯股份有限公司
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Publication of WO2013182114A1 publication Critical patent/WO2013182114A1/en

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Classifications

    • 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
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • 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

Definitions

  • it relates to a method and a wireless device for reducing antenna mutual interference in a wireless device.
  • LTE Long Term Evolution
  • the traditional solution is to place the antenna in the same frequency band far enough in the antenna layout, and the isolation of the antenna is large enough, so that the layout can achieve certain effects, but
  • the appearance requirements of the terminal products are getting higher and higher, and the miniaturization of the products has become an inevitable trend in the future, which limits the ideal distance between the antennas, and the isolation between the antennas is difficult to meet the requirements. .
  • the technical problem to be solved by the embodiments of the present invention is to provide a method and a wireless device for reducing mutual interference between antennas in a wireless device, which effectively improves the isolation between the antennas, and solves the problem that the existing antennas of the LTE and the like exist objectively.
  • the frequency interference problem meets the requirements for miniaturization of terminal products such as data cards and mobile phones.
  • the present invention uses the following technical solutions:
  • a wireless device the wireless device includes a first antenna and a second antenna, wherein: a decoupling circuit is disposed between the first antenna and the second antenna;
  • the decoupling circuit and the antenna of the first antenna are matched, and the antenna of the second antenna is matched Configured to form a decoupling network.
  • the decoupling circuit includes: a microstrip line reserved in a front segment of the first antenna, a microstrip line reserved in a front segment of the second antenna, and the A capacitor connected in series between the ends of the two microstrip lines.
  • a slot is formed between the floor between the floor of the first antenna and the second antenna.
  • the slot is a rectangular slot.
  • a method for reducing antenna mutual interference in a wireless device comprising:
  • the decoupling circuit is matched with the antenna of the first antenna and the antenna of the second antenna is matched to form a decoupling network, and the antenna between the first antenna and the second antenna is reduced by the decoupling network Mutual interference.
  • the step of providing a decoupling circuit between the first antenna and the second antenna of the wireless device includes:
  • the capacitor constitutes the decoupling circuit.
  • the method further includes:
  • Tuning is performed by adjusting the length of the microstrip line of the first antenna and/or the second antenna.
  • the method further includes:
  • a slot is provided between the floor between the floor of the first antenna and the second antenna.
  • the first antenna and the second antenna respectively include:
  • LTE Long Term Evolution
  • WIFI Wireless Fidelity
  • the wireless device includes: an LTE data card or a terminal.
  • an LTE data card or a terminal is an LTE data card or a terminal.
  • FIG. 1 is a schematic diagram of an antenna layout of an antenna device according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram showing the relationship between the simulation and the actual measurement isolation using the solution of the present invention.
  • the embodiment provides a method for reducing mutual interference of an antenna in a wireless device, and the following technical solution is used:
  • a microstrip line is reserved for each of the front segments of the first antenna and the second antenna, and a capacitor is connected in series between the ends of the two microstrip lines.
  • the microstrip line, the series capacitor, and the antenna matching circuit together form a decoupling network, reducing the mutual coupling between the two antennas.
  • the position of the antenna can be arranged in any direction on the PCB of the terminal, and can be adjusted according to the layout requirements.
  • the antennas may be two or more.
  • the slot position can be adjusted according to the design layout.
  • the slot length, width, shape, and the like between the antennas may be adjusted according to the design layout.
  • the microstrip line trace lengths of the two antennas can be tuned as needed.
  • the added decoupling circuit between the two antennas is not limited to the foregoing composition.
  • a device can also be a combined network of several other devices.
  • the wireless device is an LTE data card with a wireless fidelity (WIFI) function
  • the size is 22*60 mm
  • the working frequency band is LTE band 40.
  • the data card requires at least 2 antennas, and one supports LTE.
  • WIFI is supported, and since the downlink frequency of LTE band 40 is 2300-2400Mhz and the WIFI frequency is 2.4Ghz (gih), there is a problem of mutual interference between LTE and WIFI.
  • the isolation of the antenna cannot be improved by pulling the physical position between the antennas, and the space reserved for the antenna is also small.
  • the LTE antenna 1 is placed on the left top end of the clearance area 11 of the main board PCB 12, and the WIFI antenna 2 is placed on the right top of the clearance area.
  • the isolation between the LTE antenna and the WIFI antenna is only 3 dB through simulation. Obviously, such isolation is not enough to meet the requirements of use.
  • a microstrip line (the microstrip line 3 and the microstrip line 4 in FIG. 1) is reserved in the front portion of the two antennas for adjusting the impedance of the antenna, and the length of the microstrip line. It can be adjusted according to actual needs.
  • a capacitor 5 is connected in series at the end of the microstrip line. In this embodiment, the capacitor 5 is used with a 0402 device, and the size can also be adjusted according to actual conditions.
  • the two antennas are reserved for antenna matching 6 and antenna matching 7 of device size 0201, respectively.
  • the feed point 8 of the LTE antenna and the feed point 9 of the WIFI antenna are reserved at the end of the antenna matching, and the microstrip line is used for feeding.
  • the microstrip line 3 and the microstrip line 4, the series capacitor, and the antenna matching network together form a "decoupling network", the length of the microstrip line, the magnitude of the series capacitance, and the antenna matching can be tuned according to actual performance. .
  • a rectangular slot is formed between the floors of the two antennas.
  • a rectangular slot having a length of 10 mm and a width of 0.2 mm is used to block the ground current of the two antennas, thereby further improving the ground between the two antennas. Isolation.
  • the slotted position can be adjusted according to actual performance.
  • the isolation between the antennas is 18 dB. If only the slotting scheme is used, the isolation between the two antennas is achieved. 16dB; If the two schemes are combined, the isolation is effectively improved, which is better than any of them.
  • the impedance bandwidth of the antenna can be adjusted by the reserved antenna matching, microstrip line length, series capacitance value, and antenna form on the PCB.
  • the wireless device includes but is not limited to a data card or a mobile phone, and may also be applied to all places where the antenna technology can be applied, such as wireless access.
  • the present invention has strong industrial applicability.

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  • Transceivers (AREA)

Abstract

Disclosed is a device, comprising a first aerial and a second aerial; the first aerial and the second aerial are provided with a decoupling circuit therebetween; the decoupling circuit is matched with the aerials of the first aerial and the second aerial to form a decoupling network. The present invention effectively improves the isolation between aerials, and solves the problem of co-channel interference between aerials objectively existing in current LTE products, while satisfying the miniaturized layout requirement for terminal products such as data cards, mobile phones and the like.

Description

一种无线设备中减少天线互扰的方法及无线设备  Method for reducing antenna mutual interference in wireless device and wireless device
技术领域 Technical field
-, 尤其涉及一种无线设备中 减少天线互扰的方法及无线设备。  In particular, it relates to a method and a wireless device for reducing antenna mutual interference in a wireless device.
背景技术 Background technique
长期演进（LTE, Long Term Evolution )技术的出现促进了无线宽带接 入技术和产业的发展， 随着业务的需求越来越广泛，要求 LTE产品提供的功 能也越来越大， 对于终端产品也要求其提供更高的传输速率。 一个无线设备 往往同时带有 2或 2个以上的天线， 这些天线通常工作于同一频段， 同时受 到产品尺寸要求限制， 天线之间不可避免的存在同频干扰， 这是目前 LTE产 品的一个难题。 为了解决这一技术难题， 传统的解决方案是在进行天线布局时， 将工作 在同频段的天线摆放的物理位置足够远， 天线的隔离度足够大， 这样布局可 以达到一定的效果， 但是由于目前对终端产品的外观要求越来越高， 产品的 小型化已经成为未来必然的趋势， 这就限定了天线之间的距离不可能放置的 很理想， 天线之间的隔离度也很难满足要求。  The emergence of Long Term Evolution (LTE) technology has promoted the development of wireless broadband access technologies and industries. As the demand for services becomes more and more extensive, the functions provided by LTE products are becoming larger and larger, and for terminal products. It is required to provide a higher transfer rate. A wireless device often has two or more antennas at the same time. These antennas usually work in the same frequency band. At the same time, due to product size requirements, there is inevitably co-channel interference between antennas. This is a problem in current LTE products. In order to solve this technical problem, the traditional solution is to place the antenna in the same frequency band far enough in the antenna layout, and the isolation of the antenna is large enough, so that the layout can achieve certain effects, but At present, the appearance requirements of the terminal products are getting higher and higher, and the miniaturization of the products has become an inevitable trend in the future, which limits the ideal distance between the antennas, and the isolation between the antennas is difficult to meet the requirements. .
发明内容 Summary of the invention
本发明实施例要解决的技术问题是提供一种无线设备中减少天线互扰的 方法及无线设备， 有效地提高了天线之间的隔离度， 解决了目前 LTE等产品 客观存在的天线之间同频干扰问题， 同时满足了数据卡、 手机等终端产品小 型化布局要求。  The technical problem to be solved by the embodiments of the present invention is to provide a method and a wireless device for reducing mutual interference between antennas in a wireless device, which effectively improves the isolation between the antennas, and solves the problem that the existing antennas of the LTE and the like exist objectively. The frequency interference problem meets the requirements for miniaturization of terminal products such as data cards and mobile phones.
为解决上述技术问题， 本发明釆用如下技术方案：  In order to solve the above technical problems, the present invention uses the following technical solutions:
一种无线设备， 所述无线设备包括第一天线和第二天线， 其中： 所述第一天线和第二天线之间设有去耦电路；  A wireless device, the wireless device includes a first antenna and a second antenna, wherein: a decoupling circuit is disposed between the first antenna and the second antenna;
所述去耦电路和所述第一天线的天线匹配、 以及所述第二天线的天线匹 配组成去耦网络。 The decoupling circuit and the antenna of the first antenna are matched, and the antenna of the second antenna is matched Configured to form a decoupling network.
可选地， 所述去耦电路， 包括： 所述第一天线的走线前段预留的一段微 带线、 与所述第二天线的走线前段预留的一段微带线、 以及所述两段微带线 的末端之间串联的电容。  Optionally, the decoupling circuit includes: a microstrip line reserved in a front segment of the first antenna, a microstrip line reserved in a front segment of the second antenna, and the A capacitor connected in series between the ends of the two microstrip lines.
可选地，所述第一天线的地板和所述第二天线之间的地板之间设有开槽。 可选地， 所述开槽为矩形槽。  Optionally, a slot is formed between the floor between the floor of the first antenna and the second antenna. Optionally, the slot is a rectangular slot.
一种无线设备中减少天线互扰的方法， 包括： A method for reducing antenna mutual interference in a wireless device, comprising:
在所述无线设备的第一天线和第二天线之间设置去耦电路；  Providing a decoupling circuit between the first antenna and the second antenna of the wireless device;
所述去耦电路与所述第一天线的天线匹配及所述第二天线的天线匹配组 成去耦网络， 通过所述去耦网络减少所述第一天线和所述第二天线之间的天 线互扰。  The decoupling circuit is matched with the antenna of the first antenna and the antenna of the second antenna is matched to form a decoupling network, and the antenna between the first antenna and the second antenna is reduced by the decoupling network Mutual interference.
可选地， 所述在所述无线设备的第一天线和第二天线之间设置去耦电路 的步骤包括：  Optionally, the step of providing a decoupling circuit between the first antenna and the second antenna of the wireless device includes:
在所述第一天线和所述第二天线的走线前段分别预留一段微带线， 并在 所述两段微带线的末端之间串联一个电容， 所述两段微带线与所述电容构成 所述去耦电路。  Separating a microstrip line respectively in a front section of the first antenna and the second antenna, and connecting a capacitor in series between the ends of the two microstrip lines, the two microstrip lines The capacitor constitutes the decoupling circuit.
可选地， 所述方法还包括：  Optionally, the method further includes:
通过调整所述第一天线和 /或所述第二天线的微带线的长度进行调谐。 可选地， 所述方法还包括：  Tuning is performed by adjusting the length of the microstrip line of the first antenna and/or the second antenna. Optionally, the method further includes:
在所述第一天线的地板和所述第二天线之间的地板之间设置开槽。  A slot is provided between the floor between the floor of the first antenna and the second antenna.
可选地， 所述第一天线和所述第二天线分别包括：  Optionally, the first antenna and the second antenna respectively include:
长期演进系统 (LTE)天线和无线保真 (WIFI)天线； 或者，  Long Term Evolution (LTE) antenna and Wireless Fidelity (WIFI) antenna; or,
WIFI天线和 LTE天线。  WIFI antenna and LTE antenna.
可选地， 所述无线设备包括： LTE数据卡或终端。 釆用以上天线布局方案，可以有效的提高天线之间的隔离度，解决了 LTE 数据卡、 手机等产品中的天线之间的同频干扰问题。 附图概述 Optionally, the wireless device includes: an LTE data card or a terminal. 以上 Using the above antenna layout scheme can effectively improve the isolation between the antennas and solve the problem of co-channel interference between antennas in LTE data cards and mobile phones. BRIEF abstract
此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部 分， 本发明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的 不当限定。 在附图中：  The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. In the drawing:
图 1为本发明实施例的天线设备的天线布局示意图；  1 is a schematic diagram of an antenna layout of an antenna device according to an embodiment of the present invention;
图 2为应用本发明方案的仿真与实际测量的隔离度关系示意图。  2 is a schematic diagram showing the relationship between the simulation and the actual measurement isolation using the solution of the present invention.
本发明的较佳实施方式 Preferred embodiment of the invention
本实施方式提供一种无线设备中减少天线互扰的方法， 釆用如下技术方 案：  The embodiment provides a method for reducing mutual interference of an antenna in a wireless device, and the following technical solution is used:
第一天线和第二天线的走线前段分别预留一段微带线， 并在所述两段微 带线的末端之间串联一个电容。  A microstrip line is reserved for each of the front segments of the first antenna and the second antenna, and a capacitor is connected in series between the ends of the two microstrip lines.
这样， 微带线、 串联电容， 天线匹配电路共同组成了一个去耦网络， 减 少两个天线之间的互耦。  Thus, the microstrip line, the series capacitor, and the antenna matching circuit together form a decoupling network, reducing the mutual coupling between the two antennas.
此外， 可选地， 还可以在天线中间釆用 "地开槽" 方式来减少地板电流 的互扰。  In addition, it is also possible to reduce the mutual interference of the floor current by using a "ground slot" method in the middle of the antenna.
此外， 可选地， 天线的位置， 可以布置在终端的 PCB板上的任意一个方 向， 可以根据布局的需要进行调整。  In addition, optionally, the position of the antenna can be arranged in any direction on the PCB of the terminal, and can be adjusted according to the layout requirements.
此外， 可选地， 本实施方案中， 天线可以是两个， 或两个以上。  In addition, optionally, in this embodiment, the antennas may be two or more.
可选地， 本实施方案中， 开槽位置可以根据设计布局需要进行调整。 可选地， 本实施方案中， 天线之间的开槽长度、 宽度以及形状等可以根 据设计布局需要进行调整。  Optionally, in this embodiment, the slot position can be adjusted according to the design layout. Optionally, in this embodiment, the slot length, width, shape, and the like between the antennas may be adjusted according to the design layout.
可选地， 本实施方案中， 两个天线的微带线走线长度可根据需要调谐。 可选地， 本实施方案中， 两个天线之间增加的去耦电路不限于上述组成 器件， 也可以是其他多个器件的组合网络。 Optionally, in this embodiment, the microstrip line trace lengths of the two antennas can be tuned as needed. Optionally, in this embodiment, the added decoupling circuit between the two antennas is not limited to the foregoing composition. A device can also be a combined network of several other devices.
为了便于阐述本发明， 以下将结合附图及具体实施例对本发明技术方案 的实施作进一步详细描述。 需要说明的是， 在不冲突的情况下， 本申请中的 实施例及实施例中的特征可以相互任意组合。 In order to facilitate the description of the present invention, the implementation of the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.
本实施例中，无线设备为一款带有无线保真（ WIFI )功能的 LTE数据卡， 尺寸 22*60mm, 工作频段 LTE band 40, 该数据卡至少需要 2个天线， 一个 支持 LTE,—个支持 WIFI,且由于 LTE band 40下行频率是 2300-2400Mhz, WIFI频率 2.4Ghz (吉赫 ) , 因而存在 LTE与 WIFI互扰问题。 但由于受到 数据卡主板尺寸的限制， 天线的隔离度不能通过拉远天线之间的物理位置来 提高， 同时预留给天线的空间也很小。  In this embodiment, the wireless device is an LTE data card with a wireless fidelity (WIFI) function, the size is 22*60 mm, and the working frequency band is LTE band 40. The data card requires at least 2 antennas, and one supports LTE. WIFI is supported, and since the downlink frequency of LTE band 40 is 2300-2400Mhz and the WIFI frequency is 2.4Ghz (gih), there is a problem of mutual interference between LTE and WIFI. However, due to the limitation of the size of the data card motherboard, the isolation of the antenna cannot be improved by pulling the physical position between the antennas, and the space reserved for the antenna is also small.
如图 1所示，将 LTE天线 1放置在主板 PCB 12净空区 11的左顶端，净 空区右顶端放置 WIFI天线 2, 此时， 通过模拟仿真， LTE天线与 WIFI天线 之间的隔离度只有 3dB, 显然， 这样的隔离度是不能满足使用要求的。  As shown in FIG. 1, the LTE antenna 1 is placed on the left top end of the clearance area 11 of the main board PCB 12, and the WIFI antenna 2 is placed on the right top of the clearance area. At this time, the isolation between the LTE antenna and the WIFI antenna is only 3 dB through simulation. Obviously, such isolation is not enough to meet the requirements of use.
本实施例中， 在两个天线的走线前段部分分别预留一段微带线 （图 1中 的微带线 3和微带线 4 ) , 用于调节天线的阻抗， 且微带线的长度可根据实 际需要进行调整。 在微带线的末端串联一个电容 5, 本实施例中电容 5釆用 0402 器件， 大小也可根据实际情况进行调整。 两个天线分别预留器件大小 0201的天线匹配 6和天线匹配 7。 LTE天线的馈电点 8和 WIFI天线的馈电 点 9预留在天线匹配末端， 釆用微带线馈电。  In this embodiment, a microstrip line (the microstrip line 3 and the microstrip line 4 in FIG. 1) is reserved in the front portion of the two antennas for adjusting the impedance of the antenna, and the length of the microstrip line. It can be adjusted according to actual needs. A capacitor 5 is connected in series at the end of the microstrip line. In this embodiment, the capacitor 5 is used with a 0402 device, and the size can also be adjusted according to actual conditions. The two antennas are reserved for antenna matching 6 and antenna matching 7 of device size 0201, respectively. The feed point 8 of the LTE antenna and the feed point 9 of the WIFI antenna are reserved at the end of the antenna matching, and the microstrip line is used for feeding.
其中， 微带线 3和微带线 4、 串联电容、 天线匹配网络共同组成了一个 "去耦网络" ， 微带线的长度， 串联电容值的大小， 以及天线匹配均可以根 据实际性能进行调谐。  Among them, the microstrip line 3 and the microstrip line 4, the series capacitor, and the antenna matching network together form a "decoupling network", the length of the microstrip line, the magnitude of the series capacitance, and the antenna matching can be tuned according to actual performance. .
可选地，在两个天线的地板之间开一矩形槽，本实施例中具体为长 10mm、 宽 0.2mm的矩形槽， 隔断两个天线的地电流， 进一步提升了两个天线之间的 隔离度。 其中开槽位置可根据实际性能进行调整。  Optionally, a rectangular slot is formed between the floors of the two antennas. In this embodiment, a rectangular slot having a length of 10 mm and a width of 0.2 mm is used to block the ground current of the two antennas, thereby further improving the ground between the two antennas. Isolation. The slotted position can be adjusted according to actual performance.
通过实际测试， 如果不开槽， 仅从去耦电路上对天线进行处理， 则天线 之间的隔离度 18dB; 如果仅仅釆用开槽方案， 则两个天线之间的隔离度达到 16dB; 如果釆用两种方案结合在一起， 则隔离度有效提升， 优于其中任何一 种方案。 Through actual testing, if the antenna is not processed from the decoupling circuit, the isolation between the antennas is 18 dB. If only the slotting scheme is used, the isolation between the two antennas is achieved. 16dB; If the two schemes are combined, the isolation is effectively improved, which is better than any of them.
如图 2所示为去耦电路和开槽结合在一起时的仿真与实际测量的结果， 可以看出， LTE天线和 WIFI天线在 2.4Ghz附近的隔离度可以达到 30dB, 充分满足了设计要求。  As shown in Fig. 2, the simulation and actual measurement results when the decoupling circuit and the slot are combined, it can be seen that the isolation of the LTE antenna and the WIFI antenna near 2.4Ghz can reach 30dB, which fully satisfies the design requirements.
可选地，对于工作在不同频段范围内的天线， 可以通过 PCB板上预留天 线匹配、 微带线长度、 串联电容值、 天线形式来调整天线的阻抗带宽。  Optionally, for antennas operating in different frequency bands, the impedance bandwidth of the antenna can be adjusted by the reserved antenna matching, microstrip line length, series capacitance value, and antenna form on the PCB.
需要说明的是， 所述无线设备包括但不限于数据卡、 手机， 也可以应用 于无线接入等所有可以应用该天线技术的场所。  It should be noted that the wireless device includes but is not limited to a data card or a mobile phone, and may also be applied to all places where the antenna technology can be applied, such as wireless access.
以上所述仅为本发明应用于无线设备的一个实施例而已， 凡在本方法的 精神和原则之内， 例如去耦网络的构建、 开槽位置、 形状等方面所作的任何 修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。 The above description is only one embodiment of the present invention applied to a wireless device, and any modifications, equivalent replacements, such as construction, slotting position, shape, etc. of the decoupling network, etc. within the spirit and principles of the method, Improvements and the like should be included in the scope of the present invention.
工业实用 4生 Industrial and practical
釆用以上天线布局方案，可以有效的提高天线之间的隔离度，解决了 LTE 数据卡、 手机等产品中的天线之间的同频干扰问题。 因此本发明具有很强的 工业实用性。  以上Using the above antenna layout scheme can effectively improve the isolation between antennas and solve the problem of co-channel interference between antennas in LTE data cards and mobile phones. Therefore, the present invention has strong industrial applicability.

Claims

权 利 要 求 书 claims
1、 一种无线设备， 所述无线设备包括第一天线和第二天线， 其中： 所述第一天线和第二天线之间设有去耦电路； 1. A wireless device, the wireless device includes a first antenna and a second antenna, wherein: a decoupling circuit is provided between the first antenna and the second antenna;
所述去耦电路和所述第一天线的天线匹配、 以及所述第二天线的天线匹 配组成去 网络。 The decoupling circuit, the antenna matching of the first antenna, and the antenna matching of the second antenna form a decoupling network.
2、 如权利要求 1所述的无线设备， 其中， 所述去耦电路包括： 所述第一 天线的走线前段预留的一段微带线、 与所述第二天线的走线前段预留的一段 微带线、 以及所述两段微带线的末端之间串联的电容。 2. The wireless device according to claim 1, wherein the decoupling circuit includes: a section of microstrip line reserved in the front section of the wiring of the first antenna, and a section of microstrip line reserved in the front section of the wiring of the second antenna. A section of microstrip line, and the capacitance connected in series between the ends of the two sections of microstrip line.
3、 如权利要求 1或 2所述的无线设备， 其中， 3. The wireless device according to claim 1 or 2, wherein,
所述第一天线的地板和所述第二天线之间的地板之间设有开槽。 A slot is provided between the floor of the first antenna and the floor of the second antenna.
4、 如权利要求 3所述的无线设备， 其中， 4. The wireless device as claimed in claim 3, wherein,
所述开槽为矩形槽。 The slot is a rectangular slot.
5、 一种无线设备中减少天线互扰的方法， 包括： 5. A method for reducing antenna mutual interference in wireless equipment, including:
在所述无线设备的第一天线和第二天线之间设置去耦电路； A decoupling circuit is provided between the first antenna and the second antenna of the wireless device;
所述去耦电路与所述第一天线的天线匹配及所述第二天线的天线匹配组 成去耦网络， 通过所述去耦网络减少所述第一天线和所述第二天线之间的天 线互扰。 The decoupling circuit, the antenna matching of the first antenna and the antenna matching of the second antenna form a decoupling network, and the antenna between the first antenna and the second antenna is reduced through the decoupling network. Interference.
6、如权利要求 5所述的方法， 其中， 所述在所述无线设备的第一天线和 第二天线之间设置去耦电路的步骤包括： 6. The method of claim 5, wherein the step of arranging a decoupling circuit between the first antenna and the second antenna of the wireless device includes:
在所述第一天线和所述第二天线的走线前段分别预留一段微带线， 并在 所述两段微带线的末端之间串联一个电容， 所述两段微带线与所述电容构成 所述去耦电路。 A section of microstrip line is reserved in the front section of the first antenna and the second antenna, and a capacitor is connected in series between the ends of the two sections of microstrip line. The two sections of microstrip line are connected to the The capacitor constitutes the decoupling circuit.
7、 如权利要求 5所述的方法， 所述方法还包括： 7. The method of claim 5, further comprising:
通过调整所述第一天线和 /或所述第二天线的微带线的长度进行调谐。 Tuning is performed by adjusting the length of the microstrip line of the first antenna and/or the second antenna.
8、 如权利要求 5所述的方法， 所述方法还包括： 8. The method of claim 5, further comprising:
在所述第一天线的地板和所述第二天线之间的地板之间设置开槽。 A slot is provided between the floor of the first antenna and the floor of the second antenna.
9、 如权利要求 5、 6、 7或 8所述的方法， 其中， 所述第一天线和所述第 二天线分别包括： 9. The method of claim 5, 6, 7 or 8, wherein the first antenna and the second antenna respectively include:
长期演进系统 (LTE)天线和无线保真 (WIFI)天线； 或者， Long Term Evolution (LTE) antenna and Wireless Fidelity (WIFI) antenna; or,
WIFI天线和 LTE天线。 WIFI antenna and LTE antenna.
10、 如权利要求 9所述的方法， 其中， 所述无线设备包括： LTE数据卡 或终端。 10. The method of claim 9, wherein the wireless device includes: an LTE data card or a terminal.
PCT/CN2013/079054 2012-11-20 2013-07-09 Wireless device and method for reducing aerial mutual interference therein WO2013182114A1 (en)

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