Title :
Broadband probe-fed patch antenna with a U-shaped ground plane for cross-polarization reduction
Author :
Hsu, Wen-Hsiu ; Wong, Kin-Lu
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
fDate :
3/1/2002 12:00:00 AM
Abstract :
A broadband probe-fed patch antenna with a novel three-dimensional (3D) U-shaped ground plane is proposed and experimentally studied. The proposed antenna has a thick air substrate, and by placing the two flanges of the U-shaped ground plane in parallel to and at a suitable distance from the radiating edges of the antenna´s radiating patch, a wide impedance bandwidth (>25%) with much reduced cross-polarization radiation can be obtained, compared to the case with a conventional planar ground plane. In addition, enhanced antenna gain for the proposed antenna is also observed. Details of the proposed antenna and experimental results are presented and discussed
Keywords :
antenna radiation patterns; electric impedance; electromagnetic wave polarisation; impedance matching; microstrip antennas; 3D U-shaped ground plane; broadband patch antenna; cross-polarization; enhanced antenna gain; impedance bandwidth; impedance matching; microstrip antennas; probe-fed patch antenna; radiation patterns; Bandwidth; Circuits; Feeds; Flanges; Frequency; Geometry; Impedance matching; Microstrip antennas; Patch antennas; Polarization;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
