公开(公告)号：US11215692B2

公开(公告)日：2022-01-04

申请号：US16356385

申请日：2019-03-18

Applicant: Infineon Technologies AG

Inventor： Grigory Itkin ,  Paul Meissner ,  Alexander Melzer

IPC: G01S7/02 ,  G01S13/34 ,  G01S13/931 ,  G01S7/35 ,  G01S7/41

Abstract: A method for use in a radar device is described herein. In accordance some implementations, the method includes generating an RF oscillator signal which includes frequency-modulated chirps, amplitude-modulating the RF oscillator signal by a modulation signal, and transmitting the amplitude-modulated RF oscillator signal via at least one antenna. In some implementations, the method may further include receiving an RF signal that includes frequency-modulated chirp echo signals from a target object, down-converting the received RF signal into a base band using the RF oscillator signal for providing a base band signal, and processing the base band signal to detect information included in the modulation signal.

公开(公告)号：US12196848B2

公开(公告)日：2025-01-14

申请号：US17929190

申请日：2022-09-01

Applicant: Infineon Technologies AG

Inventor： Grigory Itkin

IPC: G01S13/58 ,  G01S7/35

Abstract: The present disclosure relates to a radar apparatus including a transmitter for transmitting a frequency-modulated continuous-wave radar signal, wherein the transmitter is configured to generate the continuous-wave radar signal with a sinusoidally varying modulation frequency, a receiver for receiving a reflection signal of the frequency-modulated continuous-wave radar signal, which is reflected by at least one object, and for mixing the reflection signal with the frequency-modulated continuous-wave radar signal in order to obtain a downmixed reception signal, and a device for correlating the downmixed reception signal with at least one pattern signal which is based on the modulation frequency and a predetermined distance.

公开(公告)号：US11346921B2

公开(公告)日：2022-05-31

申请号：US16719092

申请日：2019-12-18

Applicant: Infineon Technologies AG

Inventor： Grigory Itkin

IPC: G01S7/40 ,  G01S7/35

Abstract: A radio frequency circuit includes an input terminal configured to receive a reception signal from an antenna; a reception signal path coupled to the input terminal and including a mixer and an analog-to-digital converter (ADC), where the ADC generates a digital signal representing an input signal to the ADC; a test signal generator configured to generate a test signal that is injected into the reception signal path while the reception signal propagates along the reception signal path; a digital signal processor configured to receive the digital signal from a digital portion of the reception signal path, and analyze a frequency response of the digital signal; and a subtractor coupled to the digital portion of the reception signal path, the subtractor configured to remove test frequency components resulting from an injection of the test signal into the reception signal path from the digital signal.

公开(公告)号：US11002844B2

公开(公告)日：2021-05-11

申请号：US16184699

申请日：2018-11-08

Applicant: Infineon Technologies AG

Inventor： Grigory Itkin

IPC: G01S13/34 ,  H03L7/099 ,  H03L7/093 ,  G01S7/35

Abstract: A phase-locked loop (PLL) for a radar system includes an oscillator configured to have an output frequency and a multi-modulus divider (MMD) configured to implement successive frequency modulation ramps of the oscillator output frequency, each frequency modulation ramp beginning at a first frequency and ending at a second frequency. The PLL is operated by downmixing an output of the MMD to a frequency above zero Hertz, measuring the downmixed output of the MMD to generate a plurality of MMD output measurements for each frequency modulation ramp, and calculating the frequency of the MMD based on the plurality of MMD output measurements for each frequency modulation ramp.

公开(公告)号：US10690761B2

公开(公告)日：2020-06-23

申请号：US16269188

申请日：2019-02-06

Applicant: Infineon Technologies AG

Inventor： Grigory Itkin

IPC: G01S13/04 ,  H04B1/00 ,  H04B1/18 ,  H04B1/44 ,  H04B1/04

Abstract: Radio frequency device, system comprising radio frequency device, and corresponding methods. Radio Frequency devices are provided where a radio frequency circuit may be selectively coupled to a radar circuit or a communication circuit.