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Numerical analysis of an aperture coupled rectangular dielectric resonator antenna using a surface formulation and the method of moments

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2 Author(s)
Yau, D. ; Dept. of Comput. Sci. & Eng., Queensland Univ., Brisbane, Qld., Australia ; Shuley, N.V.

A rigorous analysis of an aperture coupled rectangular dielectric resonator antenna (DRA) is presented. The method is based on a surface integral equation approach by which the dielectric resonator (DR) is treated via a set of combined field integral equations (CFIE). The CFIE and 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. Complex images are employed in the calculation to enhance numerical efficiency. Numerical tests have shown that only a relatively small impedance matrix is needed to compute the parameters of the antenna with good accuracy. The numerical model is demonstrated to be a very versatile and practical design tool which can analyse the DRA with minimal computation effort

Published in:

Microwaves, Antennas and Propagation, IEE Proceedings  (Volume:146 ,  Issue: 2 )