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An electromagnetic-field method modeling of a radial line planar antenna with coupling probes

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2 Author(s)
Bialkowski, M.E. ; Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, Qld., Australia ; Kabacik, P.

This communications describes an electromagnetic model of a radial line planar antenna consisting of a radial guide with one central probe and many peripheral probes arranged in concentric circles feeding an array of antenna elements such as patches or wire curls. The model takes into account interactions between the coupling probes while assuming isolation of radiating elements. Based on this model, computer programs are developed to determine equivalent circuit parameters of the feed network and the radiation pattern of the radial line planar antenna. Comparisons are made between the present model and the two-probe model developed earlier by other researchers.

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Antennas and Propagation, IEEE Transactions on  (Volume:51 ,  Issue: 5 )