Title :
Circularly polarised circular ring slot antenna fed by stripline hybrid coupler
Author :
Qing, X.M. ; Chia, Y.W.M.
Author_Institution :
Centre for Wireless Commun., Singapore
Abstract :
A novel circular ring slot antenna which has a stripline hybrid coupler feed network is proposed for generating broadband circular polarisation performance. A broad impedance bandwidth (VSWR 2:1) at 20.5%, and a CP bandwidth at 9% for a <3 dB axial ratio have been achieved.
Keywords :
electromagnetic wave polarisation; CP bandwidth; axial ratio; broadband circular polarisation performance; circular ring slot antenna; circularly polarised antenna; impedance bandwidth; stripline hybrid coupler feed;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991474
