Methods and apparatus for fragmented phased array radar

摘要

Methods and apparatus for a phase array radar system having a fragmented array. In one embodiment, subarrays forming a generally rectangular shape are disposed on the surface of a truncated cone or a dome so that gaps are formed between adjacent segments of subarrays or between every adjacent subarrays.

主权项

1. A phased array radar system, comprising:
a plurality of subarrays disposed on a support surface, wherein the support surface is curved, and wherein each of the plurality of subarrays are disposed separately and substantially equally spaced about the support surface to form a fragmented array, and wherein each of the plurality of subarrays are substantially the same size; wherein the fragmented array comprises a plurality of segments, each segment comprising one or more associated ones of the plurality of subarrays; wherein a size of gap between edges of adjacent segments varies based on a shape and width of each of the plurality of subarrays and a shape of the curved support surface, wherein the size of gap increases from a first size proximate to a top end of the adjacent segments to a second size proximate to a bottom end of the adjacent segments; and wherein each of the plurality of subarrays comprise an integrated assembly including radiators, transmit/receive (T/R) modules, power manifolds and control circuitry disposed on a printed circuit board bonded to each of the plurality of subarrays by an interconnect selected from a group consisting of a ball grid array (BGA) and vias.