公开(公告)号：US20250105924A1

公开(公告)日：2025-03-27

申请号：US18888949

申请日：2024-09-18

Applicant: Infineon Technologies AG

Inventor： Michael GERSTMAIR ,  Alexander Michael MELZER ,  Josef KULMER ,  Gunther KRAUT ,  Tobias BUCKEL

IPC: H04B17/12 ,  G01R23/16 ,  H04B17/15 ,  H04B17/21

Abstract: A method for determining phase information related to an RF transmission channel includes generating a frequency-modulated RF signal including a frequency ramp, coupling a first representation of the frequency-modulated RF signal to the RF transmission channel to generate a first frequency-modulated RF output signal, and coupling a second representation of the frequency-modulated RF signal to a test phase shifter. Measurement samples are generated during the frequency ramp based on phase shifting the second representation of the frequency-modulated RF signal according to a set of phase shift values to generate a frequency-modulated RF test signal, generating a down-converted signal based on mixing a first representation of the first frequency-modulated RF output signal with the frequency-modulated RF test signal, sampling the down-converted signal to generate, for each phase shift value, a respective measurement sample, and computing the phase information related to the RF transmission channel based on the measurement samples.