Title :
A wideband dual-polarized patch antenna
Author :
Dan Sun ; Zhaocheng Zhang ; Xuequan Yan
Author_Institution :
AVIC LEIHUA Electron. Technol. Res. Inst. Wuxi, Wuxi, China
Abstract :
A broadband microstrip patch antenna with dual-polarization is presented in the paper. There are four feed-lines and a cavity-backed ground plane in the antenna. The patch is electromagnetically coupled by these feed-lines. The phase offset of the two feeding ports located symmetrically relative to the center of the patch is 180°, which affords a solution to improve the polarization purity and the degree of isolation simultaneously. The cavity is used as another radiator for enhancing the bandwidth. The antenna is optimized by the particle swarm optimization (PSO) algorithm. The simulated results show a bandwidth of 61% (active VSWR<;2) and good radiation patterns.
Keywords :
antenna radiation patterns; broadband antennas; microstrip antennas; particle swarm optimisation; PSO algorithm; broadband microstrip patch antenna; cavity-backed ground plane; feed-lines; feeding ports; good radiation patterns; particle swarm optimization algorithm; phase offset; polarization purity; wideband dual-polarized patch antenna; Bandwidth; Broadband antennas; Broadband communication; Microstrip antennas; Patch antennas; cavity-backed; dual-polarization; particle swarm optimization; proximity-coupling; wideband patch antenna;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992418
