Fogg & Powers LLC
Antenna subsystem with analog beam-steering transmit array and digital beam-forming receive array
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 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.
Echodyne Corp.
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Nicholas K. John Desmond Benjamin Muhammad Rameez Tarron Tom Adam Robert Tilman Nathan Ingle Milton Charles A. Christopher L. Ioannis Jonathan R.
Brune Hunt Sikes Chatni Teeslink Driscoll Bily Worl Landy Perque Renneberg Lambrecht Tzanidis Hull