Robert J. Garfinkle - Yorba Linda CA, US Joseph E. Wheeler - Plano CA, US Donald R. Wells - Long Beach CA, US Jar J. Lee - Irvine CA, US Richard P. Ritch - Tarzana CA, US
Raytheon Company - Waltham MA
342373, 342372, 342374
An electronically scanned antenna may include a plurality of space-fed, contiguous subarrays arranged in an annular region, each subarray including an inner set of radiating elements facing inwardly, an outer-facing set of radiating elements, and a feed system for illuminating the inner set of radiating elements. A plurality of RF amplifiers are coupled through a commutation switch matrix to selected ones of the subarray feed horn systems to illuminate a desired sector with RF energy.