Patent ID: 11870146
Assignee: NXP USA, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A method of operating a transceiver comprising a waveguide antenna having a first plurality of slots for producing a beam having a first radiation pattern at a first resonant frequency and a second plurality of slots for producing a beam having a second radiation pattern at a second resonant frequency, the method comprising:
generating the first radiation pattern to have peaks at zero azimuth based on a 360° phase difference between adjacent slots of the first plurality of slots;
generating the second radiation pattern to have twin peaks on both sides of azimuth such that the second radiation pattern is significantly broader than the first radiation pattern;
operating the transceiver at a first frequency to detect objects in a first field of view; and operating the transceiver at a second frequency to detect objects in a second field of view.