基于电容性膜板加载的新型雷达宽带隔离设计

doi:10.3969/j.issn.1000-1093.2012.05.012

兵工学报 ›› 2012, Vol. 33 ›› Issue (5): 579-582.doi: 10.3969/j.issn.1000-1093.2012.05.012

基于电容性膜板加载的新型雷达宽带隔离设计

黄敬健，杨勇，谭渊，袁乃昌

（国防科学技术大学电子科学与工程学院，湖南长沙 410073）

收稿日期:2011-01-24 修回日期:2011-01-24 上线日期:2014-03-04
作者简介:黄敬健（1983—），男，博士研究生

Novel Design of Wide-band Isolation Based on Capacitive Clapboard

HUANG Jing-jian， YANG Yong， TAN Yuan， YUAN Nai-chang

(College of Electronic Science and Engineering，National University of Defense Technology，Changsha 410073, Hunan，China)

Received:2011-01-24 Revised:2011-01-24 Online:2014-03-04

摘要/Abstract

摘要： 针对一般的连续波雷达收发天线隔离问题，提出了一种基于多路径结构对消的新型方法来提高隔离度。通过分析加载容性膜板的波纹波导中相位偏移，将波纹结构加载应用于连续波雷达收发天线之间，使得多路径到达接收天线的电磁波在特定频带内对消形成零点。CST建模仿真和实验结果证明：加载合适的膜板，可以使得收发天线在400 MHz的带宽能达到-80 dB以下的隔离度；并且该方法结构简单，成本低，具有很大的应用价值。

关键词: 电子技术, 宽带隔离, 膜板加载, 相移

Abstract: For the isolation problem of transmitting-receiving antenna in continuous wave radar, the phase offset in ripple wave-guild with capacitive clapboard was analyzed, the ripple structure was used to improve the isolation of antenna, and a new method was proposed to improve the isolation of transmitting-receiving antenna based on structure counteraction. CST simulation and experimental results show that this method is able to make the isolation reach -80 dB in 400 MHz band. So it has a very huge application value because of its simple structure and low cost.

Key words: electron technology, wide-band isolation, loaded clapboard, phase offset

中图分类号:

TN95

黄敬健，杨勇，谭渊，袁乃昌. 基于电容性膜板加载的新型雷达宽带隔离设计[J]. 兵工学报, 2012, 33(5): 579-582.

HUANG Jing-jian， YANG Yong， TAN Yuan， YUAN Nai-chang. Novel Design of Wide-band Isolation Based on Capacitive Clapboard[J]. Acta Armamentarii, 2012, 33(5): 579-582.

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基于电容性膜板加载的新型雷达宽带隔离设计

Novel Design of Wide-band Isolation Based on Capacitive Clapboard

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