Title :
Broadband circularly-polarised patch antenna with 3D meandering strip feed
Author :
Tang, X.H. ; Long, Yunliang ; Wong, Hang ; Lau, K.L.
Author_Institution :
Dept. of Electron. & Commun. Eng., Sun Yat-Sen Univ., Guangzhou, China
Abstract :
A wideband single-fed circularly-polarised patch antenna is presented. It is implemented by using a 3D meandering strip to feed a square patch antenna. This antenna has very good circular-polarisation characteristics with wide axial ratio bandwidth, stable radiation patterns and high antenna gain across the operating bandwidth. Results show that the proposed antenna has an impedance bandwidth (SWR≤2) of 25.2≤ (2.18≤2.81≤GHz), an axial ratio bandwidth (AR≤3≤dB) of 22.4≤ (2.18≤2.73≤GHz) and a peak gain of 8.2≤dBic.
Keywords :
antenna feeds; broadband antennas; microstrip antennas; 3D meandering strip feed; broadband circularly polarised patch antenna; circular polarisation characteristics; high antenna gain; impedance bandwidth; operating bandwidth; stable radiation patterns; wide axial ratio bandwidth;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3358
