Title :
Circularly polarised patch antenna with periodic structure
Author :
Rahman, M. ; Stuchly, M.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
6/1/2002 12:00:00 AM
Abstract :
A wideband microstrip patch antenna has been designed that provides circular polarisation with good axial ratio (AR) within a reasonably wide bandwidth. The patch has further been investigated by integrating it with the electromagnetic band gap (EBG) structure, and a significant improvement in several characteristics of the antenna performance has been observed. Antennas and the EBG structure are modelled with the finite-difference time-domain (FDTD) method. Experimental results for the antennas are also presented, and an excellent agreement has been found between the computed and measured results.
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; finite difference time-domain analysis; microstrip antennas; periodic structures; 8.02 to 9.85 GHz; EBG structure; FDTD; X-band operation; axial ratio; circular polarisation; circularly polarised patch antenna; electromagnetic band gap structure; finite-difference time-domain method; impedance bandwidth; microstrip antenna; periodic structure; radiation patterns; wideband antenna;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:20020392
