US 12,424,742 B2
Beam steering and direction finding for a differentially segmented aperture antenna
Daniel A. Perkins, Lewis Center, OH (US); Raphael J. Welsh, Powell, OH (US); Douglas A. Thornton, Columbus, OH (US); Jeffrey A. Lau, Fairfax, VA (US); Daniel G. Loesch, Sunbury, OH (US); Damian B. Fedoryka, Gainesville, VA (US); Roger Kanke, Columbus, OH (US); and Shannon Pitts, Dublin, OH (US)
Assigned to Battelle Memorial Institute, Columbus, OH (US)
Filed by Battelle Memorial Institute, Columbus, OH (US)
Filed on Oct. 28, 2022, as Appl. No. 18/050,552.
Claims priority of provisional application 63/273,344, filed on Oct. 29, 2021.
Claims priority of provisional application 63/273,434, filed on Oct. 29, 2021.
Claims priority of provisional application 63/273,352, filed on Oct. 29, 2021.
Prior Publication US 2023/0133302 A1, May 4, 2023
Int. Cl. H01Q 3/36 (2006.01); H01Q 21/06 (2006.01); H01Q 21/29 (2006.01)
CPC H01Q 3/36 (2013.01) [H01Q 21/06 (2013.01); H01Q 21/29 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A beam steering system, comprising:
a differential segmented array (DSA) antenna comprising a plurality of pyramid structures arranged in an array and a plurality of elements formed in an array comprising a set of first direction elements and a set of second direction elements, wherein each element is defined between opposing faces of two adjacent pyramid structures, and further wherein a position of each element is located at a distance from a common origin of the elements of the array;
phase gradient determination circuitry to determine a first phase gradient for the set of first direction elements and to determine a second phase gradient for the set of second direction elements, wherein the first phase gradient and second phase gradient are based on a first angle of a target with respect to the DSA antenna, a second angle of the target with respect to the DSA antenna, and an operating frequency of the DSA antenna; and
phase shift determination circuitry to determine a first phase shift, for each of the elements, by multiplying the first phase gradient by the position of the element relative to the common origin of the elements of the array, and to determine a second phase shift, for each of the elements, by multiplying the second phase gradient by the position of the element relative to the common origin of the elements of the array, and to determine a resultant phase shift, for each element, by summing the respective first and second phase shift.