AN RF FEED NETWORK FOR MODULAR ACTIVE APERTURE ELECTRONICALLY STEERED ARRAYS

摘要

A feed network for an antenna subarray includes a first feed arrangement, a second feed arrangement, a fixed attenuator, a first power divider/combiner, a variable phase shifter, a variable attenuator, a second power divider/combiner, a first circulator, and a third power divider/combiner arranged to provide an interchangeable feed network.