科研之友
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摘要
A circularly polarized (CP) composite antenna is studied in this article. The antenna unit is composed of a CP curl antenna and a CP omni-directional antenna with three pairs of tilted parasitic elements. Reasonable agreement between simulation and measurement is obtained. The proposed antenna has a 10-dB impedance bandwidth (S(11) < -10 dB) of 35% and a 3-dB axial ratio (AR) bandwidth of 20%. The composite antenna and the reference antenna are compared in this article. The composite antenna can obtain a 3-dB power gain beamwidth of 110 degrees and 3-dB AR beamwidth of 120 degrees, when compared with those of the reference antenna with 95 degrees and 95 degrees, respectively. The characteristics of the composite antenna are also investigated.
- 出版日期2009-10
- 单位北京理工大学
