Robust Optimization for Shaped Reflector Antennas
The shaping of reflector antennas in geostationary orbit to attain contoured beams on earth is most often done by solving a minimax optimization problem based on a Physical Optics analysis of the reflector antenna gain, cx-pol, e.t.c. Unfortunately, this optimization problem can be highly non-linear, leading to slow convergence and many local minima, particularly for poor starting guesses.
In this paper, it is shown how better designs that more closely fulfill the optimization goals and are more stable towards poor starting guesses can be obtained by preceding the minimax optimization with the solution of another, closely related, optimization problem.
Publication: Proc. 2018 IEEE AP-S Symposium on Antennas and Propagation
Place: Boston, USADownload PDF