National Changhua University of Education Institutional Repository : Item 987654321/10971
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題名: Reconfigurable slot-coupled microstrip antenna with polarisation diversity
作者: Row, Jeen-Sheen;Chen, R. H.
貢獻者: 電機工程學系
日期: 2007-06
上傳時間: 2012-06-05T02:00:34Z
出版者: IEEE
摘要: The design of an aperture-coupled microstrip patch antenna whose radiation can be switched between circular polarisation (CP) and linear polarisation (LP) states is presented. For the proposed design, the CP and LP radiations are excited through the couplings of a ring slot
and an open-ring slot in the ground plane, respectively. The effects of the key parameters of the proposed design on the CP and LP performances are investigated in details. A prototype that uses a pin diode to reconfigure the coupling slot is implemented and tested. From the obtained
results, the prototype has a cross polarisation level of more than 25 dB when it is operated at the LP state and an axial ratio of less than 3 dB when it is operated at the CP state. Moreover, the two states share a 10 dB input impedance bandwidth. Consequently, the proposed reconfigurable
microstrip antenna has the feature of polarisation diversity at a fixed frequency band.
關聯: IET Microwaves, Antennas & Propagat, 1(3): 798-802
顯示於類別:[電機工程學系] 期刊論文

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