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New antenna designs for wideband harmonic suppression using adaptive surface meshing and genetic algorithms

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6 Author(s)
D. Zhou ; Surrey Space Centre, University of Surrey, Guildford, UK ; R. A. Abd-Alhameed ; C. H. See ; M. S. Bin-Melha
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A novel design strategy for microstrip harmonic-suppression antennas is presented. The computational method is based on an integral equation solver using adaptive surface meshing driven by a genetic algorithm (GA). Three examples are illustrated, all involving design of coaxially-fed air-dielectric patch antennas incorporating shorting and folded walls. The characteristics of the antennas in terms of the impedance responses and far-field radiation patterns are discussed theoretically and experimentally. The performances of all of the GA-optimised antennas were shown to be excellent and the examples presented show the capability of the proposed method in antenna design using GA.

Published in:

IET Microwaves, Antennas & Propagation  (Volume:5 ,  Issue: 9 )