Title :
Design of square-ring microstrip antenna for circular polarisation
Author_Institution :
Dept. of Comput. & Commun. Eng., Chien Kuo Inst. of Technol., Chang-Hua, Taiwan
Abstract :
The design of a square-ring microstrip antenna with circular polarisation (CP) is presented. To compact the antenna size and overcome the high impedance problem, the CP antenna is excited by a coupling strip located inside the square-ring patch. Several prototypes of the square-ring CP antennas with various substrate thickness (0.013-0.09λ0) have been constructed and studied experimentally, and their coupling-strip designs and CP performance are described.
Keywords :
light polarisation; microstrip antennas; antenna size; circular polarisation; coupling strip; coupling-strip designs; high impedance problem; square-ring microstrip antenna; square-ring patch;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040094
