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Application Study of Electromagnetic Band-gap Structuresfor Cylindrical Conformal Microstrip Antenna
Author(s): 
Pages: 79-82
Year: Issue:  1
Journal: Journal of Air Force Engineering University(Natural Science Edition)

Keyword:  电磁带隙圆柱共形天线谐振频率方向图曲率;
Abstract: 利用EBG结构改善平面微带天线的性能已得到广泛研究,同时在天线研究领域,圆柱共形微带天线由于其低剖面、易于共形,重量轻等特性而在航空航天及移动通信等众多领域得到广泛应用,因此,对高阻表面EBG结构在圆柱共形微带天线中的应用问题进行了着重研究.通过建立模型数值仿真了EBG结构对天线谐振频率、方向图的影响规律及有EBG结构时曲率对天线性能影响.结果表明,在天线周围加载EBG结构后,天线谐振频率升高,方向图得到显著改善,前向增益提高,后瓣减小,3 dB波束宽度变窄.比较研究发现,EBG结构减小了曲率对圆柱共形微带天线增益的影响.
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