INPUT IMPEDANCE OF SPHERICAL MICROSTRIP ANTENNA

Authors
TAM WY LAI AKY LUK KM
Citation
Wy. Tam et al., INPUT IMPEDANCE OF SPHERICAL MICROSTRIP ANTENNA, IEE proceedings. Microwaves, antennas and propagation, 142(3), 1995, pp. 285-288
Citations number
12
Categorie Soggetti
Optics
Journal title
IEE proceedings. Microwaves, antennas and propagation → ACNP
ISSN journal
13502417
Volume
142
Issue
3
Year of publication
1995
Pages
285 - 288
Database
ISI
SICI code
1350-2417(1995)142:3<285:IIOSMA>2.0.ZU;2-I
Abstract
The input impedance of a spherical microstrip antenna excited by a coa xial probe is analysed. Both the TM(11) mode of spherical circular mic rostrip antenna and the TM(12) mode of spherical annular microstrip an tenna are considered. Galerkin's procedure is used to solve the surfac e current on the patch. The effects of the dielectric thickness and th e size of the sphere on the input impedance are studied. Results are c ompared with antennas on planar surface and with perfect magnetic wall cavity model.