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Multiport network description and radiation characteristics of coupled dielectric resonator antennas

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3 Author(s)
G. P. Junker ; Dept. of Electr. Eng., Mississippi Univ., MS, USA ; A. A. Kishk ; A. W. Glisson

An efficient procedure is presented to investigate the mutual coupling effects and radiation characteristics of dielectric resonator (DR) antennas operating in an array environment. The procedure is based on the method of moments (MoM) as applied to a system of surface integral equations (SIEs) for the coupling of a dielectric body of revolution (BOR) to a nonBOR geometry. The antenna array elements are situated on a ground plane and fed by coaxial probes. Multiport network impedance parameters computed by this method show good agreement with those obtained by measurement. Computed driving point impedances are given for arrays exhibiting optimum pattern performance in terms of low cross polarization and good pattern symmetry

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:46 ,  Issue: 3 )