公开(公告)号：US20230016890A1

公开(公告)日：2023-01-19

申请号：US17809448

申请日：2022-06-28

Applicant: Infineon Technologies AG

Inventor： Michael GERSTMAIR ,  Michael PETIT ,  Josef KULMER ,  Julian MITTERLEHNER ,  Dominik BREUER ,  Alexander GIRLINGER

IPC: G01S7/40 ,  G01S13/931

Abstract: According to a further example implementation, the method comprises measuring magnitude response information relating to an analog baseband signal processing chain of a reception channel of a radar system, determining—based on the measured magnitude response information—at least one value which characterizes at least one frequency limit of the first baseband signal processing chain, and determining a phase response for the baseband signal processing chain based on the at least one value and a model of the baseband signal processing chain. The method also comprises digitizing an output signal from the baseband signal processing chain and digitally processing the digitized output signal, wherein phase equalizing is carried out based on the determined phase response during normal radar operation of the radar system.

公开(公告)号：US20250022815A1

公开(公告)日：2025-01-16

申请号：US18759435

申请日：2024-06-28

Applicant: Infineon Technologies AG

Inventor： Ernst SELER ,  Josef KULMER

IPC: H01L23/66 ,  H01P5/18 ,  H01Q1/22 ,  H01Q5/55

Abstract: An RF module comprises a circuit board, a waveguide antenna, first and second semiconductor circuit devices, and first, second, and third RF ports. The first semiconductor circuit device including a local oscillator to generate a local oscillator signal. The circuit board includes a first opening between the first RF port and a first waveguide port for transferring the local oscillator signal from the first RF port into the first hollow waveguide. The circuit board includes a second opening between the second RF port and a second waveguide port to receive the local oscillator signal from the first hollow waveguide. The second semiconductor circuit device is configured to process a first RF signal based on the received local oscillator signal. The circuit board includes a third opening for transferring the first RF signal between the third RF port and a third waveguide port.

公开(公告)号：US20250020764A1

公开(公告)日：2025-01-16

申请号：US18422706

申请日：2024-01-25

Applicant: Infineon Technologies AG

Inventor： Martin DECHANT ,  Josef KULMER ,  George EFTHIVOULIDIS

IPC: G01S7/03 ,  G01S7/35

Abstract: The present disclosure relates to a cascaded radar system. The cascaded radar system includes a primary MMIC and a secondary MMIC coupled to the primary MMIC via a signal channel. The primary MMIC is configured to combine a LO signal with at least a second signal to generate a combined LO signal and to transmit the combined LO signal to the secondary MMIC via the signal channel. The secondary MMIC is configured to receive the combined LO signal via the signal channel, separate the LO signal and at least the second signal from the combined LO signal, and perform radar operations based on the LO signal and at least the second signal.

公开(公告)号：US20220334218A1

公开(公告)日：2022-10-20

申请号：US17651331

申请日：2022-02-16

Applicant: Infineon Technologies AG

Inventor： Josef KULMER ,  Patrick HOELZL ,  Hao LI

IPC: G01S7/40 ,  G01S13/58

Abstract: A method for the use in a radar system is described herein. In accordance with one implementation, the method includes providing a local oscillator signal to a transmit channel of a radar chip. The transmit channel generates an RF output signal based on the local oscillator signal. An internal RF test signal is generated by applying the local oscillator signal to the transmit channel. First and second phase values are determined for a first and a second value of an influence parameter of the radar chip based on internal measurements of the first and second phase values. Third and fourth phase values are determined for the first and second values of the influence parameter, respectively, based on the RF output signal. A calibration parameter is calculated based on the first, second, third, and fourth phase values and is used to estimate a phase of the RF output signal.

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.

公开(公告)号：US20220026527A1

公开(公告)日：2022-01-27

申请号：US17305728

申请日：2021-07-14

Applicant: Infineon Technologies AG

Inventor： Josef KULMER ,  Ernst SELER ,  Hao LI ,  Gunther KRAUT ,  Oleksiy KLYMENKO ,  Patrick HOELZL

IPC: G01S7/40 ,  G01S7/03

Abstract: 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.