Title :
Design for dual-frequency microstrip antenna using annular slot aperture coupling
Author :
Kamiya, Y. ; Chujo, W. ; Fujise, M.
Author_Institution :
ATR Opt. & Radio Commun. Res. Lab., Kyoto, Japan
Abstract :
An annular slot aperture coupled microstrip antenna (ASCMSA) was previously proposed for mobile-satellite communication use. Two major advantages of an ASCMSA are demonstrated. First, it is confirmed that by using the annular slot parameter, two resonant frequencies of an ASCMSA can be independently designed with good impedance matching. Secondly, an ASCMSA with a thin structure showed excellent antenna performances for circularly polarized radiation at the two resonant frequencies.<>
Keywords :
electromagnetic wave polarisation; microstrip antennas; annular slot aperture coupling; circularly polarized radiation; dual-frequency microstrip antenna; impedance matching; resonant frequencies; Antenna feeds; Aperture antennas; Aperture coupled antennas; Degradation; Impedance matching; Microstrip antennas; Polarization; Resonance; Resonant frequency; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.175043
