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Reconfigurable circularly polarized microstrip antenna with dual-frequency operation

✍ Scribed by Tuan-Yung Han; Lin-Yu Tseng

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
315 KB
Volume
51
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A circularly polarized (CP) microstrip antenna with dual‐frequency operation is presented. The proposed antenna has a square radiating patch with four shorting pins, and it is excited by an L‐shaped strip through the coupling of a ring‐slot in the ground plane. Five PIN diodes are attached to the proposed antenna, and the ability to reconfigure the CP performances is achieved by switching these diodes in certain sequences. The measured results demonstrated that the proposed dual‐frequency antenna is able to operate with a small frequency ratio radiating in the same polarization. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 29–32, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23987

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