Patent ID: 11953616
Assignee: ROBERT BOSCH GMBH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A radar sensor, comprising:
at least two synchronously operating high frequency components, in which each has at least one respective signal path in which a phase of a transmitted high frequency signal on the respective signal path varies along the respective signal path based on temperature, a respective phase shifter being situated in each of the respective signal paths;
wherein in each of the high frequency components, a respective phase detector is connected at a first end of the respective signal path and is connected at a second, opposite end of the respective signal path, such that the respective phase detector is connected in parallel to the respective signal path, the respective phase detector configured to supply a signal, the supplied signal assuming an extremum in a voltage amplitude at a certain phase difference, the certain phase difference being a difference between a phase of the transmitted high frequency signal at the first end of the respective signal path and a phase of the transmitted high frequency signal at the second, opposite end of the respective signal path, and
wherein in each of the high frequency components, the respective phase shifter is configured to set, using the respective phase detector, a phase difference between the phase of the transmitted high frequency signal at the first end of the respective signal path and the phase of the transmitted high frequency signal at the second, opposite of the respective signal path in such a way that the signal supplied by the respective phase detector assumes the extremum in the voltage amplitude.