US 12,372,615 B2
Multi-target near-field test system
Ryan T. Cutshall, Tucson, AZ (US); and Eric Jeffrey Nill, Tucson, AZ (US)
Assigned to Raytheon Company, Arlington, VA (US)
Filed by Raytheon Company, Waltham, MA (US)
Filed on Sep. 8, 2022, as Appl. No. 17/940,150.
Prior Publication US 2024/0085523 A1, Mar. 14, 2024
Int. Cl. G01S 7/40 (2006.01); G01R 29/10 (2006.01)
CPC G01S 7/4095 (2021.05) [G01R 29/105 (2013.01); G01S 7/4008 (2013.01); G01R 29/10 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A test system comprising:
an array of radiating antenna elements, each antenna element in the array operatively connected to a beam former; and
at least one signal generator operatively connected to said beam former; wherein the test system is configured to generate simultaneous plane waves in the near-field region; wherein each radiating antenna element in the array is operatively connected to multiple phase shifters, and each separate phase shifter is driven by a unique waveform; wherein the multiple phase shifters are configured by adjusting the phase shifter setting, a plane wave can be presented to the radar-under-test at various oblique angles; wherein the test system is configured to simultaneously generate multiple plane waves having different oblique angles.