Title :
A theoretical study on a circular microstrip antenna in a parallel plate waveguide
Author :
Nakamoto, Narihiro ; Oka, Tomohiro ; Kitazawa, Shoichi ; Ban, Hiroshi ; Kobayashi, Kiyoshi
Author_Institution :
ATR Wave Enginnering Labs., Kyoto, Japan
Abstract :
The input impedance of a circular microstrip antenna in a parallel plate waveguide is theoretically formulated using the cavity model with the surface admittance at the side aperture. The surface admittance is defined by the magnetic field produced by the equivalent magnetic current at the side aperture and includes the effects of the parallel plates on the antenna. The magnetic field in the parallel plate region is formulated by the Green´s function approach. Presented formulation is validated through the comparisons with measurement results.
Keywords :
Green´s function methods; aperture antennas; electric admittance; magnetic field effects; microstrip antennas; parallel plate waveguides; Green´s function approach; cavity model; circular microstrip antenna; equivalent magnetic current; magnetic field; parallel plate waveguide; side aperture; surface admittance; Antenna measurements; Electromagnetic waveguides; Frequency measurement; Impedance; Microstrip antennas; Resonant frequency; circular microstrip antenna; input impedance; parallel plate waveguide; surface admittance;
Conference_Titel :
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0918-0
Electronic_ISBN :
978-1-4577-0919-7
DOI :
10.1109/EuCAP.2012.6205946
