Title :
Circularly polarised microstrip antenna array using proximity coupled feed
Author :
Lo, W.K. ; Chan, C.H. ; Luk, K.M.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
fDate :
11/12/1998 12:00:00 AM
Abstract :
A 2×2 circularly polarised (CP) microstrip antenna array using a proximity coupled feed and sequential rotation is described. As compared with a previously presented single-element circularly polarised microstrip antenna with a cross-slot, the new array achieves a much wider impedance bandwidth of 11.18% and has an axial ratio bandwidth of 4.1%. The return loss, radiation patterns and axial ratio of the antenna array were measured and are presented
Keywords :
antenna feeds; antenna radiation patterns; microstrip antenna arrays; axial ratio; axial ratio bandwidth; circularly polarised microstrip antenna array; impedance bandwidth; proximity coupled feed; radiation patterns; return loss; sequential rotation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981573
