Title :
Mutual coupling between two ports of dual slot-coupled circular patch antennas
Author :
Murakami, Y. ; Chujo, W. ; Fujise, M.
Author_Institution :
ATR Opt. & Radio Commun. Res. Lab., Kyoto, Japan
fDate :
June 28 1993-July 2 1993
Abstract :
The mutual coupling between two ports of dual slot-coupled circular patch antennas is studied using the spectral domain moment approach. The calculated results agree well with experimental ones. It is clarified that the mutual coupling between two ports decreases as the slot length decreases and the slot offsets are increased. The resonant frequency of the patch antenna should be as close to the resonant frequency of the dominant mode of the circular microstrip disk resonator as possible in order to obtain a CP (circularly polarized) wave with a good axial ratio.<>
Keywords :
method of moments; microstrip antenna arrays; slot antenna arrays; spectral-domain analysis; axial ratio; dual slot-coupled circular patch antennas; mutual coupling between two ports; resonant frequency; slot length; slot offsets; spectral domain moment approach; Antenna feeds; Laboratories; Microstrip antennas; Mutual coupling; Optical polarization; Patch antennas; Radio communication; Resonance; Resonant frequency; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385472
