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X波段宽带圆极化微带天线的设计 被引量:3

Design of X-Band Broadband Circularly Polarized Microstrip Antenna
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摘要 介绍一种新型宽带圆极化微带天线。该天线采用同轴线单点馈电,通过在圆形贴片上开C型缝的方法,实现了圆极化并展宽了阻抗带宽;采用层叠结构,使上下两层贴片谐振于相近的频率,从而显著提高了天线的轴比带宽和阻抗带宽。仿真结果显示,该新型天线工作于X波段时,3 dB轴比带宽为13.9%,VSWR<2的阻抗带宽达到35.4%。结果证明,在贴片上开C型缝是实现圆极化的有效方法。 A novel single- layer single- patch broadband Circularly Polarized(CP) microstrip antenna is introduced. The antenna is fed by a single coaxial probe. It can not only creat circularly polarized but also enhance the standing wave ratio by embedding a C shape slot in the patch. The simulated results show that the 3 dB axial ratio of this patch antenna is up to 13.9 % and the 2 V standing wave ratio bandwidth(VSWR〈2) is up to 35.4%. It is demonstrated through the simulated resuites that circularly polarized can be achieved by embedding a C shape slot in the patch.
出处 《现代电子技术》 2010年第1期100-102,共3页 Modern Electronics Technique
关键词 微带天线 圆极化 宽带 缝隙 层叠结构 microstrip antenna circularly polarized broadband slot stacked structure
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参考文献10

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二级参考文献35

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