Summary
International Symposium on Antennas and Propagation
2011
Session Number:FrE4
Session:
Number:FrE4-5
Ultra-Wideband Circularly Polarized Antenna and Applications to Target Detection
Chi-Jung Kuo, Chong-Yi Liou, Jen-Chun Yeh, Shau-Gang Mao,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
A wideband circularly polarized (CP) equiangular spiral antenna is proposed. Contrary to the conventional spiral antenna using the coaxial line or the vertically connected feeding structure, a tapered microstrip balun is fully integrated into one spiral arm of the proposed antenna and hence this construction can be realized completely planar. The experimental results reveal that the characteristics of the proposed circularly polarized antennas are useful in the application of ground penetrating radar (GPR), and by using time-frequency analysis, the information concerning the targets, including position and dielectric constant, can be obtained easily.