National Changhua University of Education Institutional Repository : Item 987654321/10937
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题名: Dual-frequency circularly polarized annular-ring microstrip antenna
作者: Row, Jeen-Sheen
贡献者: 電機工程學系
日期: 2004-02
上传时间: 2012-06-05T01:59:22Z
出版者: IEEE
摘要: The novel design of the circular polarisation (CP) for an annular-ring antenna operated at its TM11 and TM12 modes is presented. The CP
radiations of the proposed design are achieved by placing an L-shaped strip connected to two orthogonal sides of the inner boundary of the annular patch. The dual-frequency CP operations are excited by a single probefeed, and no additional 90 phase shifter and impedance-transformer circuit are required. A prototype of the proposed design was implemented and measured. Measured results show that broadside radiation patterns with good CP characteristics are obtained at the two operating resonant modes. Agreement between measured and numerical results is satisfactory.
關聯: Electronics Letters, 40(3): 153-154
显示于类别:[電機工程學系] 期刊論文

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