Invention Grant
- Patent Title: Antenna subsystem with analog beam-steering transmit array and sparse hybrid analog and digital beam-steering receive array
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Application No.: US16903135Application Date: 2020-06-16
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Publication No.: US11879989B2Publication Date: 2024-01-23
- Inventor: Nicholas K. Brune , Muhammad Rameez Chatni , Tom Driscoll , Jonathan R. Hull , John Desmond Hunt , Christopher L. Lambrecht , Nathan Ingle Landy , Milton Perque , Charles A. Renneberg , Benjamin Sikes , Tarron Teeslink , Ioannis Tzanidis , Robert Tilman Worl , Adam Bily
- Applicant: Echodyne Corp.
- Applicant Address: US WA Kirkland
- Assignee: Echodyne Corp.
- Current Assignee: Echodyne Corp.
- Current Assignee Address: US WA Kirkland
- Agency: Volpe Koenig
- Main IPC: G01S7/03
- IPC: G01S7/03 ; G01S13/42 ; H01Q1/32 ; H01Q3/34
Abstract:
In an embodiment, an antenna subsystem includes a sparse receive antenna and an electronically steerable transmit antenna. The sparse receive antenna includes 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 the electronically steerable transmit antenna includes 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. To reduce aliasing, such an antenna subsystem can be operated to filter, spatially, a receive beam pattern generated by the receive antenna with a transmit beam pattern generated by the transmit antenna.
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