US 12,298,428 B2
Antenna subsystem with analog beam-steering transmit array and sparse hybrid analog and digital beam-steering receive array
Nicholas K. Brune, Redmond, WA (US); Muhammad Rameez Chatni, Redmond, WA (US); Tom Driscoll, Bellevue, WA (US); Jonathan R. Hull, Woodinville, WA (US); John Desmond Hunt, Seattle, WA (US); Christopher L. Lambrecht, Bothell, WA (US); Nathan Ingle Landy, Seattle, WA (US); Milton Perque, Seattle, WA (US); Charles A. Renneberg, Seattle, WA (US); Benjamin Sikes, Seattle, WA (US); Tarron Teeslink, Kirkland, WA (US); Ioannis Tzanidis, Woodinville, WA (US); Robert Tilman Worl, Issaquah, WA (US); and Adam Bily, Seattle, WA (US)
Assigned to Echodyne Corp., Kirkland, WA (US)
Filed by Echodyne Corp., Kirkland, WA (US)
Filed on Dec. 5, 2023, as Appl. No. 18/529,675.
Application 18/529,675 is a continuation of application No. 16/903,135, filed on Jun. 16, 2020, granted, now 11,879,989.
Application 16/903,135 is a continuation in part of application No. 15/832,568, filed on Dec. 5, 2017, granted, now 10,684,354, issued on Jun. 16, 2020.
Claims priority of provisional application 62/430,306, filed on Dec. 5, 2016.
Prior Publication US 2024/0183937 A1, Jun. 6, 2024
Int. Cl. G01S 7/03 (2006.01); G01S 13/42 (2006.01); H01Q 1/32 (2006.01); H01Q 3/34 (2006.01)
CPC G01S 7/032 (2013.01) [G01S 13/426 (2013.01); H01Q 1/3233 (2013.01); H01Q 3/34 (2013.01)] 40 Claims
OG exemplary drawing
 
1. An antenna subsystem, comprising:
a sparse receive antenna including an array of receive elements each configured to receive a respective signal having a wavelength and each spaced apart from each adjacent one of the receive elements by a respective first distance that is more than one half of the wavelength, the sparse receive antenna having an aperture and configured to generate a receive beam pattern; and
an electronically steerable transmit antenna including an array of transmit elements each configured to radiate a respective signal having the wavelength and each spaced apart from each adjacent one of the transmit elements by a respective second distance that is less than one half of the wavelength, the electronically steerable transmit antenna having an aperture that is significantly smaller than the aperture of the sparse receive antenna and configured to filter, spatially, the receive beam pattern.