Analysis of probe-fed rectangular dielectric resonator antennas on a finite ground plane using method of moment

Abstract

The rigorous moment method analysis of probe-fed rectangular dielectric resonator antenna on a finite ground plane and finite substrate is presented. The antenna and the ground plane are modeled as a linear and surface electric current, but the dielectric and the substrate are assumed as a volume polarization current The dielectric resonator (DR) is treated via a set of combined field integral equations. The associated coupling is then formulated with sets of mixed potential integral equations (MPIE). The coupled integral equations are solved by the method of moments (MoM) in the spatial domain using Galerkin's procedure. The input impedance, E-plane and H-plane patterns obtained from the MoM have a good agreement with measurements and simulated results published in the past.