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The NEWUOA is a newly developed trust region based derivative-free method for solving unconstrained optimization problems. We present in this paper this powerful tool for antenna optimization. Two antenna design examples are optimized using simplex method, conjugate gradient method and the NEWUOA algorithm. Optimization results are presented and compared. The NEWUOA shows good performance and is proved...
We have laid down the optimization guidelines for the scanning of the beam-pattern in the azimuth direction. The procedure of selecting the initial values by using the principle of reciprocity followed by the local optimization is more suited to this application as it gives an accurate value with less iteration. We also show that phase-only technique which is relatively easier to implement is applicable...
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