Summary
International Symposium on Antennas and Propagation
2011
Session Number:FrP1
Session:
Number:FrP1-1
A Circularly-Polarized Microstrip Monopole Antenna by Utilizing Dual-Loop Topology
Yang Dai, Jin-Wei Wu, Chien-Jen Wang,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
A broadband microstrip-fed monopole antenna with circular polarization (CP) is presented in this paper. The suggested asymmetrical feeding and dual-loop topology can generate the two orthogonal modes for circular polarization. Parametric studies for the enhancement of circular polarization and impedance bandwidth are shown. The measured impedance bandwidth is about 3.66 GHz from 0.98 to 4.64 GHz, which covers most of the commercial communication systems. The 3-dB axial ratio (AR) bandwidth is 12% at 1.5 GHz.