Patent ID: 11914069
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A radio frequency (RF) system, comprising:
a plurality of radar monolithic microwave integrated circuits (MMICs), each radar MMIC comprising:
a phase detector comprising a test input port, a monitoring input port, and an output port, where in the phase detector is configured to generate an output signal at the output port that represents a phase difference between a test signal received at the test input port and a monitoring signal received at the monitoring input port;
a test signal path comprising at least one active component, the test signal path configured to receive a local oscillator signal and provide the local oscillator signal as the test signal to the test input port during a first measurement interval; and
a passive signal path configured to receive the local oscillator signal and provide the local oscillator signal to the monitoring input port as the monitoring signal during the first measurement interval; and

a controller configured to adjust a phase of at least one RF channel of the plurality of radar MMICs based on each output signal generated by each of the plurality of radar MMICs.