Title :
A wideband patch antenna with cross-polarization suppression
Author :
Li, P. ; Lai, H.W. ; Luk, K.M. ; Lau, K.L.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Abstract :
A patch antenna is proposed for wideband and low cross-polarization operation by introducing a meandering strip feeding structure. The investigation shows that this feeding technique is suitable for both planar and curved grounding structures, where the impedance bandwidths (SWR < 2) of 24% and 32% can be obtained, respectively. In both cases, the cross-polarization levels are less than -20 dB in E- and H-planes across the passband. Also, symmetrical and stable radiation patterns are obtained. Simulation results are compared with experiments and good agreement is observed.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; electric impedance; electromagnetic wave polarisation; microstrip antennas; 1.5 to 2.0 GHz; cross-polarization suppression; curved grounding structures; impedance bandwidth; meandering strip feeding structure; planar grounding structures; radiation patterns; wideband antenna; wideband patch antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2004.834937
