Vol. 15

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2010-06-28

Dual-Band Circularly Polarized Microstrip Antenna with Small Frequency Ratio

By Wen Liao and Qing-Xin Chu
Progress In Electromagnetics Research Letters, Vol. 15, 145-152, 2010
doi:10.2528/PIERL10052101

Abstract

A compact single-feed dual-band circularly polarized (CP) microstrip antenna is evaluated numerically and experimentally. The dual-band performances with small frequency ratio (about 1:1.1) are achieved by a circular patch and a narrow annular-ring, which have small difference in radius. The CP characteristics are achieved by an unequal cross-slot embedded in the circular patch and two orthogonal linear stubs spurred from the annular-ring. The antenna is easy to fabricate. Good agreement is obtained between measured and simulated results.

Citation


Wen Liao and Qing-Xin Chu, "Dual-Band Circularly Polarized Microstrip Antenna with Small Frequency Ratio," Progress In Electromagnetics Research Letters, Vol. 15, 145-152, 2010.
doi:10.2528/PIERL10052101
http://jpier.org/PIERL/pier.php?paper=10052101

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