US 11,879,989 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 Jun. 16, 2020, as Appl. No. 16/903,135.
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 2020/0309900 A1, Oct. 1, 2020
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)] 33 Claims
OG exemplary drawing
 
1. An antenna subsystem, comprising:
a sparse receive antenna including an array of electronically steerable 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; 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.