Title :
A small frequency ratio dual-band circularly polarized microstrip antenna
Author :
Liao, Wen ; Chu, Qing-Xin ; Du, Shu
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China
Abstract :
A compact single-feed dual-band circularly polarized (CP) patch antenna with small frequency ratio is presented. The proposed antenna consists of a circular patch and a narrow annular-ring, which resonate at 1.70 GHz and 1.57 GHz for respectively. The annular-ring was involved to obtain dual band characteristic. The CP operation is achieved by an unequal cross-slot embedded in the circular patch. Simulated and measured results are presented and discussed.
Keywords :
microstrip antennas; multifrequency antennas; slot antennas; circular patch antenna; cross-slot antenna; dual-band circularly polarized antenna; frequency 1.57 GHz; frequency 1.7 GHz; microstrip antenna; Antenna measurements; Antenna radiation patterns; Bandwidth; Dual band; Feeds; Loss measurement; Microstrip antennas; Patch antennas; Polarization; Resonant frequency; circular polarization; cross-slot; dual-band; microstrip antenna;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5385309
