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低交叉极化高隔离度的双极化介质谐振器天线

发表时间:2009-09-30  浏览量:1255  下载量:595
全部作者: 汤小蓉,钟顺时,孙竹
作者单位: 上海大学通信与信息工程学院
摘 要: 提出了一种新颖的X波段双极化介质谐振器天线(dielectric resonator antenna, DRA),并进行了分析与设计。其中,一个极化采用口径耦合馈电;另一个极化采用平衡探针方式馈电。天线的端口隔离度低于-40 dB,交叉极化电平低于-30 dB. 2个端口上的回波损耗小于-10 dB的阻抗带宽为800 MHz,2个极化的最大增益均达到6.5 dB.
关 键 词: 天线电波传播;介质谐振器天线;双极化;高隔离度;合成口径雷达
Title: Dual-polarized dielectric resonator antenna with low cross-polarization and high isolation
Author: TANG Xiaorong, ZHONG Shunshi, SUN Zhu
Organization: School of Communication and Information Engineering, Shanghai University
Abstract: This paper introduced new dual-polarized dielectric resonator antenna (DRA) at X-band where the dual orthogonal linear polarization operation is achieved by using the combination of an aperture-coupled feed and a balanced-probe feed. The port isolation of exceeding -40 dB and a cross-polarization level of -30 dB have been obtained. Its return loss is less than -10 dB for the impedance bandwidth of 800 MHz. Its gain is around 6.5 dB in two feed ports.
Key words: antenna wave propagation; dielectric resonator antenna; dual-polarized; high isolation; synthesis aperture radar
发表期数: 2009年9月第18期
引用格式: 汤小蓉,钟顺时,孙竹. 低交叉极化高隔离度的双极化介质谐振器天线[J]. 中国科技论文在线精品论文,2009,2(18):1875-1878.
 
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