Citation:
BEDRA S, FORTAKI T, BENKOUDA S, MESSAI A. Extended Cavity Model to Analysis Tunable Circular Disk Microstrip Antenna Using Genetic Algorithm. ICIT 2015 The 7th International Conference on Information Technology, May 12-15, [Internet]. 2015.
Abstract:
In this paper, the cavity model for simple circular disc microstrip antenna is extended with some modifications for the tunable geometry taking into account the anisotropy in the layer. The numerical results show that there are substantial deviations in calculated resonant frequency when substrate dielectric anisotropy is considered. Furthermore, significant variations are seen in the radiation patterns of the structures due to substrate anisotropy. Finally the effect of inclusion of air gap layer inserted between substrate and ground plane on the resonant characteristics is also investigated for fundamental and higher order modes.