Patent ID: 11879989
Assignee: ECHODYNE CORP.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A radar subsystem, comprising:
an electronically steerable transmit antenna including an array of transmit elements each configured to radiate a respective signal having a wavelength and each spaced apart from each adjacent one of the transmit elements by a respective first distance that is less than one half of the wavelength;
a beam-steering controller configured to cause the transmit antenna to form, from the radiated signals, a transmit beam pattern including a main transmit beam that occupies a transmit-beam region;
a sparse electronically steerable 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
a radar processing unit configured to form, with the receive antenna, a receive beam pattern including a main receive beam within the transmit-beam region and including a first receive side lobe having a first amplitude and within a portion of the transmit-beam region having a second amplitude that is less than the first amplitude.