Polarization-diversity ring slot antenna with frequency agility

Jeen Sheen Row, Chuang Jiashih Shih

研究成果: Article

49 引文 斯高帕斯(Scopus)

摘要

A design for polarization-diversity slot antennas with switchable frequency is described. The antenna structure is mainly composed of a radiating annular slot backed with a reflector and a quasi-lumped coupler with two different operating modes, quadrature hybrid mode and T-junction power divider mode. The resonant frequency of the slot antenna and the operating frequencies of the two modes of the coupler can be tuned with variable capacitors. First, the effects of changing capacitance values on the performances of the antenna and coupler are respectively analyzed. Then, according to the simulation results, validated with experiments, a reconfigurable antenna prototype integrating with several diodes and their related dc-bias networks is constructed. The prototype is designed to be with three working frequencies, and moreover it can provide one linear polarization and two circular polarizations at each working frequency. Details of measured antenna performances are shown.

原文English
文章編號6204064
頁(從 - 到)3953-3957
頁數5
期刊IEEE Transactions on Antennas and Propagation
60
發行號8
DOIs
出版狀態Published - 2012 八月 13

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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