Technique for obtaining wide bandwidth with optically fed array

摘要

An optically fed lens array radar system is provided with an on boresight feed and a plurality of off boresight feeds. When looking far enough off boresight, one switches from the on boresight feed to the appropriate off boresight feed. The off boresight feeds simultaneously cover a large scan angle and achieve with the on boresight a large bandwidth over the largest scan angle of interest.