National Changhua University of Education Institutional Repository : Item 987654321/10962

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NCUEIR > College of Engineering > Department and Graduate Institute of Electronic Engineering > Periodical Articles > Item 987654321/10962

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10962

Title:	Aperture-coupled microstrip antennas with switchable polarization
Authors:	Row, Jeen-Sheen;Wu, Jia-Feng
Contributors:	電機工程學系
Date:	2006-09
Issue Date:	2012-06-05T02:00:07Z
Publisher:	IEEE
Abstract:	The design of an aperture-coupled microstrip antenna with switchable polarization is presented. The antenna is excited by a series microstrip-line-feed configuration through the coupling of a ring slot in the ground plane. For the ring-slot-coupled microstrip antenna, it is found that the minimum axial ratio in the 10 dB-input-impedance bandwidth can be varied between 0.4 and 23 dB when the length of the series stub is changed. Therefore, the antenna can radiate linear or circular polarization with good performances by selecting a proper length of the stub. To realize the voltage-controlled polarization switching, one PIN diode is integrated into the ring-slot-coupled microstrip antenna. Two typical layouts are indicated and their antenna prototypes are implemented. Details of the measured and simulated results are also presented.
Relation:	IEEE Trans Antennas Propagat, 54(9): 2686-2691
Appears in Collections:	[Department and Graduate Institute of Electronic Engineering] Periodical Articles

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