公开(公告)号：US12019180B2

公开(公告)日：2024-06-25

申请号：US17305728

申请日：2021-07-14

申请人： Infineon Technologies AG

发明人： Josef Kulmer ,  Ernst Seler ,  Hao Li ,  Gunther Kraut ,  Oleksiy Klymenko ,  Patrick Hoelzl

IPC分类号： G01S7/40 ,  G01S7/03 ,  G01S13/931

CPC分类号： G01S7/4017 ,  G01S7/032 ,  G01S13/931

摘要： According to a first example implementation, the method comprises providing a local oscillator signal in a first radar chip based on a local oscillator signal generated in a further radar chip; supplying the local oscillator signal to a transmission channel of the first radar chip which, based on the local oscillator signal, generates an HF output signal; changing the temperature and/or supply voltage of the first radar chip; measuring phase values based on the local oscillator signal supplied to the transmission channel and of the corresponding HF output signal for different temperature values and/or for different supply voltage values of the first radar chip; and ascertaining calibration data based on the measured phase values for a phase calibration to compensate for changes in the phase of the HF output signal resulting from a change in the temperature and/or in the supply voltage.