Patent ID: 8854257

Claim:
A system for object detection and radar tracking, comprising: a Luneburg lens ( 112 ) having a curved outside surface ( 114 ); an array ( 120 ) of patch antennas arranged in a manner to conform to a portion of the outside surface ( 114 ) of said Luneburg lens, said array of patch antennas forming a plurality of subarrays with each subarray of said plurality of subarrays having at least two patch antennas in each column and two patch antennas in each row; a plurality of transmit/receive modules ( 28 A, 28 B, 28 C, 28 D) electrically connected to said array of patch antennas; a receiver-exciter module ( 130 ) electrically connected to said plurality of transmit/receive modules; a processor ( 132 ) electrically connected to said plurality of transmit/receive modules; and wherein said Lunenburg lens, when receiving incident radiation at a given angle from a detected object in the field of regard of said system, focuses a blur spot ( 175 ) which is large enough to be detected by each patch antenna of a particular subarray of said plurality of subarrays, where said particular subarray has at least two patch antennas in each column and at least two patch antennas in each row, and wherein each patch antenna of said particular subarray is connected to a corresponding transmit/receive module of said plurality of transmit/receive modules.