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Antenna subsystem with analog beam-steering transmit array and digital beam-forming receive array

  • US 10,684,354 B2
  • Filed: 12/05/2017
  • Issued: 06/16/2020
  • Est. Priority Date: 12/05/2016
  • Status: Active Grant
First Claim
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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; 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.

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