双层pillbox天线蝶形馈源研究

研究了双层pillbox天线一种新型的馈源结构.利用矢量有限元方法结合PML边界条件分析馈源腔内场分布和回波损耗,研究了不同反射板形状对腔体电场分布及照射角度的影响,优化设计了一种具有蝶形副反射板的馈源腔.在Ku频段,该馈源腔-3 dB波束宽度达到160°,与传统的馈源形式相比提高了馈源的照射角度,改善了口面的辐射效率....

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Bibliographic Details
Published in电子技术应用 Vol. 40; no. 10; pp. 103 - 105
Main Author 冯奎胜 李娜 孟庆微 许家栋 张景伟
Format Journal Article
LanguageChinese
Published 西北工业大学电子与信息学院,陕西西安710072 2014
空军工程大学信息与导航学院,陕西西安710077%空军工程大学信息与导航学院,陕西西安,710077%西北工业大学电子与信息学院,陕西西安,710072
Subjects
双层pillbox天线
宽波束
矢量有限元
蝶形馈源
双层pillbox天线
矢量有限元
蝶形馈源
wide beam
bow-tie feed
dual-layer pillbox antenna
vector finite element method
宽波束
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ISSN0258-7998

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Summary:研究了双层pillbox天线一种新型的馈源结构.利用矢量有限元方法结合PML边界条件分析馈源腔内场分布和回波损耗,研究了不同反射板形状对腔体电场分布及照射角度的影响,优化设计了一种具有蝶形副反射板的馈源腔.在Ku频段,该馈源腔-3 dB波束宽度达到160°,与传统的馈源形式相比提高了馈源的照射角度,改善了口面的辐射效率.
Bibliography:Feng Kuisheng,Li Na,Meng Qingwei,Xu Jiadong,Zhang Jingwei（ 1.School of Electronic and Information, Northwest Polytechnical University, Xi＇an 710072, China;2.School of Information and Navigation ,Air Force Engineering University ,Xi＇an 710077, China）
dual-layer pillbox antenna ; bow-tie feed ; wide beam ; vector finite element method
This paper presents a new feed for dual-layer pillbox antenna.The electric field distribution and return-loss of the feed cavity are analyzed by using vector finite-element method and PML absorption boundary condition.The effect of the different sub-reflector shape on the electromagnetic field distribution and the beam width of the feed is studied.A new bow-tie feed structure is proposed.The simulation results show in the Ku band,the 3 dB beam width is more than 160°.This feed extends the bandwidth and improves the radiant efficiency than the traditional one.
11-2305/TN
ISSN:0258-7998