文章基本信息

标题：Dual Frequency Circularly Polarized Microstrip Antenna
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作者：Ira Joshi ; Abhishek Joshi ; R.P.Gupta 等
期刊名称：International Journal of Soft Computing & Engineering
电子版ISSN：2231-2307
出版年度：2011
卷号：1
期号：5
页码：184-187
出版社：International Journal of Soft Computing & Engineering
摘要：Design and analysis of a single-feed arrangement of rectangular patches is proposed, which is capable of providing dual frequency circular polarization along with broadband performance. An antenna is designed on a glass epoxy FR-4 substrate with overall thickness of the structure less than 8 mm or 0.11A0. Axial ratio bandwidth better than 1.04 % and impedance bandwidth better than 10.89% may be achieved with the proposed geometry. Measured gain and axial ratio variations of the proposed antenna with frequency are compared to simulated results for better understanding. The measured E- and H-plane radiation patterns in the entire impedance bandwidth are identical in shape, and the direction of maximum radiations is normal to the patch geometry. In the entire axial ratio bandwidth range of the proposed antenna, the E-plane left circularly polarized patterns are nearly 15 dB.
关键词：Axial ratio bandwidth; broadband; circularly;polarized; radiation patterns; rectangular microstrip antenna.