频率方向图复合可重构寄生单极子天线阵列

孙佳文; 陈文华; 冯正和; 赵凯南

频率方向图复合可重构寄生单极子天线阵列

清华大学电子系, 北京 100084

详细信息

作者简介:
孙佳文(1981-),男,山东人,清华大学博士生,研究方向为可重构天线与多频段天线;陈文华(1980-),男,江西人,助理研究员,清华大学电子工程系微波工程与天线实验室主任。研究方向为可重构及宽带天线、高效线性射频前端;冯正和(1945-),男,上海人,清华大学电子工程系教授、博士生导师,中国电子学会微波分会主任委员。主要从事智能天线技术、微波毫米波技术、电磁场理论与数值方法、无线数字通信、时空信号处理、微波测量等领域的教学和科研工作;赵凯南(1984-),女,山东人,清华大学博士生,研究方向为可重构天线设计。

通信作者:
孙佳文 E-mail:sunjw04@mails.tsinghua.edu.cn

中图分类号: TN820
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出版历程
- 收稿日期: 2010-04-06
- 网络出版日期: 2020-12-30
- 发布日期: 2011-02-28

A novel frequency and pattern reconfigurable parasitic monopole antenna array for wireless communications

Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

摘要

摘要: 提出了一种能应用于无线通讯系统的新型介质支撑开关寄生阵列天线。基于八木天线原理，天线可以实现频率及方向图的复合可重构。所引入的开关用来切换不同状态的工作频率并实现方向图的扫描。地支结构用来改善天线的阻抗匹配并展宽频带。测量结果表明：天线阵列可以在保证回波损耗小于-10 dB的情况下完全覆盖1710~1880 MHz、1850~1990 MHz及2400~2480 MHz三个移动通信频段，并可以方便地实现频率切换及方向图扫描。
- 可重构 /
- 开关 /
- 频率切换 /
- 波束扫描
Abstract: A dielectric-supported switched parasitic Yagi monopole antenna array for mobile wireless communications is developed.Based on the Yagi antenna principle,the proposed antenna realizes frequency and pattern reconfiguration,simultaneously.Switches are used to change operating frequency and radiation pattern between different working states.Moreover,a ground branch has been introduced to improve impedance matching and broaden operation bandwidth.The antenna can cover the bands of 1710~1880 MHz,1850~1990 MHz and 2400~2484 MHz with S11<-10 dB. Measurements including return loss,radiation patterns are presented to verify the proposed design of antenna.Frequency changing and beam scanning can be realized easily.
- reconfigurable /
- switch /
- frequency changing /
- beam scanning

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参考文献(16)

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孙佳文,陈文华,冯正和. 介质支撑型单极子开关寄生阵列天线设计[J].电波科学学报,2010,25(2):209-215. SUN Jiawen, CHEN Wenhua, FENG Zhenghe. Design of dielectric-supported switched parasitic antenna array for mobile wireless communications[J]. Chinese Journal of Radio Science, 2010, 25(2):209-215. (in Chinese)