WO2020113504A1 - 一种可调的多频带平面天线 - Google Patents

一种可调的多频带平面天线 Download PDF

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Publication number
WO2020113504A1
WO2020113504A1 PCT/CN2018/119497 CN2018119497W WO2020113504A1 WO 2020113504 A1 WO2020113504 A1 WO 2020113504A1 CN 2018119497 W CN2018119497 W CN 2018119497W WO 2020113504 A1 WO2020113504 A1 WO 2020113504A1
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WIPO (PCT)
Prior art keywords
resonance branch
resonance
antenna
planar antenna
branch
Prior art date
Application number
PCT/CN2018/119497
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English (en)
French (fr)
Inventor
袁信明
蒙伟贤
胡家明
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易力声科技(深圳)有限公司
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Priority to US16/631,053 priority Critical patent/US20210288675A1/en
Publication of WO2020113504A1 publication Critical patent/WO2020113504A1/zh

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    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means

Definitions

  • the utility model relates to the technical field of wireless communication, in particular to an adjustable multi-band planar antenna.
  • the Internet of Things refers to the interconnection and exchange of data between devices/sensors.
  • IoT Internet of Things
  • More and more practical applications can be found in many fields, including security, asset tracking, agriculture, smart metering, smart cities and smart homes, etc.
  • IoT applications have specific requirements, such as long distance, low data rate, low energy consumption and cost efficiency.
  • the widely used short-range radio technology eg, ZigBee, Bluetooth
  • ZigBee ZigBee
  • Bluetooth is not suitable for scenarios requiring long-distance transmission.
  • Solutions based on cellular communications eg, 2G, 3G, and 4G
  • cellular communications eg, 2G, 3G, and 4G
  • the current solution is to integrate long- and short-range radio technologies (for example, ZigBee, Bluetooth and cellular communications such as 2G, 3G, and 4G) to work together, so a multi-band antenna is required for both and transmission and reception. Purpose.
  • the object of the present invention is to provide an adjustable multi-band planar antenna to solve the problems raised in the background art mentioned above.
  • An adjustable multi-band planar antenna includes: a ground plane, A resonance branch and B resonance branch, the ground plane, A resonance branch and B resonance branch are all provided on the top surface of the PCB board, and the A resonance branch and B resonance The branches are "L" shaped.
  • the frequency modulation circuit is a high-frequency switching circuit.
  • a line is provided at the bottom of the ground plane.
  • the planar antenna of the present invention includes two resonance branches, which can enable the antenna to support multiple frequency bands and multiple standards such as (GSM, NB-IoT, GPS, WCDMA, LTE, Bluetooth, etc.);
  • the antenna can make frequency modulation in the high frequency band or the low frequency band, so that the antenna can obtain better transmission and reception effects at a specific frequency.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of the utility model.
  • Embodiment 1 of the present invention is a graph of feedback loss simulation and test results of Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of Embodiment 2 of the utility model.
  • FIG. 4 is a graph of the feedback loss simulation result of Embodiment 2 of the present invention.
  • Embodiment 1 please refer to FIGS. 1-2, an adjustable multi-band planar antenna, including: ground plane 1, A resonance branch 2 and B resonance branch 3, ground plane 1, A resonance branch 2 and B resonance branch 3 All are set on the top surface of the PCB board, and the bottom of the ground plane 1 is provided with a line.
  • the A resonance branch 2 and the B resonance branch 3 are in the shape of "L", and their dimensional parameters are shown in Table 1.
  • Fig. 2 is the simulation and test results of the feedback loss of the adjustable multi-band planar antenna.
  • the antenna can support the areas of Low Band and High Band, so the frequency of the low band can resonate from B
  • the length of the branch 3 is designed according to the frequency requirements of the application, and the frequency of the high frequency band can be designed from the length of the A resonance branch 2 according to the frequency requirements of the application.
  • the frequency modulation lines 4 may be high-frequency switching circuits, as shown in Table 2 and FIG.
  • FIG. 4 illustrates the feedback loss of the antenna when the FM line is in different states. It can be seen that after adding the FM line 4, the operating frequency of the antenna changes, the antenna efficiency is improved, and the transmission and reception effects are better.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Waveguide Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

本实用新型公开了一种可调的多频带平面天线，包括：接地平面、A共振分支和B共振分支，接地平面、A共振分支和B共振分支均设置在PCB板的顶面，所述A共振分支和B共振分支呈"L"型。本实用新型的平面天线包括两个共振分支，能令天线支持多频带,多制式如(GSM,NB-IoT,GPS,WCDMA,LTE,Bluetooth等)；天线能于高频带或低频带作出调频,使天线能于特定的频率获得更好的发射和接收效果。

Description

一种可调的多频带平面天线 技术领域
本实用新型涉及无线通讯技术领域，具体是一种可调的多频带平面天线。
背景技术
物联网(IoT)是指设备/传感器之间的数据互连和交换。目前，随着物联网技术的***式增长，越来越多的实际应用可以在许多领域找到，包括安全，资产跟踪，农业，智能计量，智能城市和智能家居等等。
物联网应用具有特定要求，例如长距离，低数据速率，低能耗和成本效益。广泛使用的短程无线电技术(例如，ZigBee，蓝牙)不适用于需要长距离传输的场景。基于蜂窝通信(例如，2G，3G和4G)的解决方案可以提供更大的覆盖范围，但是它们消耗过多的设备能量。因此，现在的方案是集合长短程无线电技术(例如，ZigBee，蓝牙和蜂窝通信例如，2G，3G和4G)于一起发挥作用,所以需要一条多频带天线作两者的和外兼做发射和接收之用。
实用新型内容
本实用新型的目的在于提供一种可调的多频带平面天线，以解决上述背景技术中提出的问题。
为实现上述目的，本实用新型提供如下技术方案：
一种可调的多频带平面天线，包括：接地平面、A共振分支和B共振分支，接地平面、A共振分支和B共振分支均设置在PCB板的顶面，所述A共振分支和B共振分支呈“L”型。
作为本实用新型进一步的方案：所述A共振分支上还设置四组调频线路。
作为本实用新型进一步的方案：所述调频线路为高频带开关线路。
作为本实用新型进一步的方案：所述接地平面底部设置线路。
与现有技术相比，本实用新型的有益效果是：
1)本实用新型的平面天线包括两个共振分支，能令天线支持多频带,多制式如(GSM,NB-IoT,GPS,WCDMA,LTE,Bluetooth等)；
2)天线能于高频带或低频带作出调频,使天线能于特定的频率获得更好的发射和接收效果。
附图说明
图1为本实用新型实施例一的结构示意图。
图2为本实用新型实施例一的反馈损失模拟和测试结果图。
图3为本实用新型实施例二的结构示意图。
图4为本实用新型实施例二的反馈损失模拟结果图。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
实施例一，请参阅图1～2，一种可调的多频带平面天线，包括：接地平面1、A共振分支2和B共振分支3，接地平面1、A共振分支2和B共振分支3均设置在PCB板的顶面，接地平面1底部设置线路，所述A共振分支2和B共振分支3呈“L”型，其尺寸参数如表1，
表1，A共振分支2和B共振分支3的尺寸参数
参数 尺寸(mm)
A 33.2
B 17.7
C 9.1
D 20.1
E 3.4
F 3.0
G 51.0
H 12.1
I 39.0
J 16.7
K 4.4
L 5.5
M 36.0
N 25.0
O 88.0
Z 1.0
图2为可调的多频带平面天线的反馈损失的模拟和测试结果，由图2可见，该天线能支持Low Band低频带和High Band高频带的区域，因而低频带的频率可以从B共振分支3的长度按应用上的频率需要进行设计，高频带的频率可以从A共振分支2的长度按应用上的频率需要进行设计。
实施例二，参阅图3、4，A共振分支2上还设置四组调频线路4，调频线路4可为高频的开关线路，如表2和图4所示，
表2，调频线路状态
天线 调频线路A 调频线路B 调频线路C 调频线路D
0000 关 关 关 关
1000 开 关 关 关
1100 开 开 关 关
1110 开 开 开 关
1111 开 开 开 开
图4示意了调频线路不同状态时天线的反馈损失，可见增加调频线路4后，天线的工作频率发生变化，天线效能提高，发射和接收效果更好。
对于本领域技术人员而言，显然本实用新型不限于上述示范性实施例的细节，而且在不背离本实用新型的精神或基本特征的情况下，能够以其他的具体形式实现本实用新型。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本实用新型的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本实用新型内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (4)

  1. 一种可调的多频带平面天线，其特征在于：包括：接地平面(1)、A共振分支(2)和B共振分支(3)，接地平面(1)、A共振分支(2)和B共振分支(3)均设置在PCB板的顶面，所述A共振分支(2)和B共振分支(3)呈“L”型。
  2. 根据权利要求1所述的一种可调的多频带平面天线，其特征在于：所述A共振分支(2)上还设置四组调频线路(4)。
  3. 根据权利要求2所述的一种可调的多频带平面天线，其特征在于：所述调频线路(4)为高频带开关线路。
  4. 根据权利要求1所述的一种可调的多频带平面天线，其特征在于：所述接地平面(1)底部设置线路。
PCT/CN2018/119497 2018-12-03 2018-12-06 一种可调的多频带平面天线 WO2020113504A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201134508Y (zh) * 2007-12-28 2008-10-15 英业达股份有限公司 双频天线
CN201994407U (zh) * 2010-10-15 2011-09-28 佳邦科技股份有限公司 小型化双频天线及其电子装置
CN103296428A (zh) * 2012-02-29 2013-09-11 宏碁股份有限公司 可调式回圈天线
CN203800183U (zh) * 2014-04-16 2014-08-27 成都福兰特电子技术有限公司 应用于WLAN和WiMAX的三频单极子天线

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201134508Y (zh) * 2007-12-28 2008-10-15 英业达股份有限公司 双频天线
CN201994407U (zh) * 2010-10-15 2011-09-28 佳邦科技股份有限公司 小型化双频天线及其电子装置
CN103296428A (zh) * 2012-02-29 2013-09-11 宏碁股份有限公司 可调式回圈天线
CN203800183U (zh) * 2014-04-16 2014-08-27 成都福兰特电子技术有限公司 应用于WLAN和WiMAX的三频单极子天线

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