Title :
Stacked quasi-elliptical patch array with circular polarisation
Author :
Chung, K.L. ; Kan, H.K.
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ.
Abstract :
A simple stacked subarray antenna with circular polarisation is presented. The antenna is based on a quasi-elliptical patch antenna fed with a 45deg offset microstrip line and a circular patch stacked on top of it via an air substrate. The single-element circularly polarised antenna is sequentially rotated into a four-element synchronous subarray resulting in improvement in antenna performance in terms of impedance bandwidth, gain and axial ratio. The antenna is experimentally verified and the results are reported
Keywords :
antenna feeds; electromagnetic wave polarisation; microstrip antenna arrays; air substrate; antenna gain; axial ratio; circular patch; circular polarisation; four-element synchronous subarray; impedance bandwidth; offset microstrip line feed; quasi-elliptical patch antenna; single-element circularly polarised antenna; stacked quasi-elliptical patch array; stacked subarray antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070380
