Optimization design method of arbitrarily shaped elements for wideband reflectarrays

Abstract

In this paper, the authors have proposed an optimization design method for arbitrarily shaped resonant elements with wideband property and have constructed an offset-feed reflectarray by the optimized elements in the X band. Its radiation pattern has been also investigated numerically and experimentally. Usefulness of the proposed method has been proved from comparison between the measured radiation pattern and the calculated ones.