Title :
Input impedance of spherical microstrip antenna
Author :
Tam, W.Y. ; Lai, A.K.Y. ; Luk, K.M.
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech. Univ., Hong Kong
fDate :
6/1/1995 12:00:00 AM
Abstract :
The input impedance of a spherical microstrip antenna excited by a coaxial probe is analysed. Both the TM11 mode of spherical circular microstrip antenna and the TM12 mode of spherical annular microstrip antenna are considered. Galerkin´s procedure is used to solve the surface current on the patch. The effects of the dielectric thickness and the size of the sphere on the input impedance are studied. Results are compared with antennas on planar surface and with perfect magnetic wall cavity model
Keywords :
Galerkin method; antenna theory; electric impedance; microstrip antennas; Galerkin´s procedure; TM11 mode; TM12 mode; annular microstrip antenna; circular microstrip antenna; coaxial probe; dielectric thickness effects; input impedance; patch antenna; spherical microstrip antenna; surface current;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19951931
