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公开(公告)号：US20220155410A1
公开(公告)日：2022-05-19
申请号：US17591718
申请日：2022-02-03
Applicant: Infineon Technologies AG
Inventor： Philipp SCHMIDT , Alexander MELZER , Andreas OCH
Abstract: A radar system includes a first integrated radar circuit having a plurality of first transmission paths and a local oscillator configured to generate a local oscillator signal. The first integrated radar circuit has a first terminal configured to output an oscillation signal based on the local oscillator signal. The radar system includes a second integrated radar circuit having a second transmission path and a second terminal. The radar system includes a partially reflective element coupled to the first terminal via a first line section and to the second terminal via a second line section. The partially reflective element is configured to reflect back a first portion of the oscillation signal as a reflected signal via the first line section to the first terminal and to pass on a second portion of the oscillation signal as a forward signal via the second line section to the second terminal.
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公开(公告)号：US20210364598A1
公开(公告)日：2021-11-25
申请号：US16880306
申请日：2020-05-21
Applicant: Infineon Technologies AG
Inventor： Pranava TRIPATHI , Alexander GIRLINGER , Rene KOBLER , Alexander MELZER , Andreas VOGGENEDER
Abstract: A method of configuring a radar monolithic microwave integrated circuit (MMIC) and executing configured commands includes receiving and storing a plurality of configuration commands corresponding to unique time-dependent functions, each configuration command corresponding to a different one of the unique time-dependent functions; generating a unique command handle for each configuration command; transmitting the unique command handle for each configuration command to a controller; receiving and storing a bundled configuration command comprising a plurality of unique command handles corresponding to a set of configuration commands; generating a unique bundled command handle for the bundled configuration command; transmitting the unique bundled command handle to the controller; and receiving an execute command that includes the unique bundled command handle, where the execute command triggers execution of an execution flow of the unique time-dependent functions corresponding to the set of configuration commands associated with the unique bundled command handle.
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公开(公告)号：US20180113193A1
公开(公告)日：2018-04-26
申请号：US15726433
申请日：2017-10-06
Applicant: Infineon Technologies AG
Inventor： Mario HUEMER , Alexander MELZER , Alexander ONIC , Rainer STUHLBERGER
CPC classification number: G01S7/2813 , G01S7/038 , G01S7/35 , G01S7/4056 , G01S13/34 , G01S13/343 , G01S13/931 , G01S2007/028 , G01S2007/406 , G01S2007/4065 , H03B1/04 , H03B2202/073
Abstract: A method for cancelling phase noise in a radar signal is described herein. In accordance with one embodiment, the method includes transmitting an RF oscillator signal, which represents a local oscillator signal including phase noise, to a radar channel and receiving a respective first RF radar signal from the radar channel. The first RF radar signal included at least one radar echo of the transmitted RF oscillator signal. Further, the method includes applying the RF oscillator signal to an artificial radar target composed of circuitry, which applies a delay and a gain to the RF oscillator signal, to generate a second RF radar signal. The second RF radar signal is modulated by a modulation signal thus generating a frequency-shifted RF radar signal. Further, the method includes subtracting the frequency-shifted RF radar signal from the first RF radar signal.
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公开(公告)号：US20210080537A1
公开(公告)日：2021-03-18
申请号：US17019828
申请日：2020-09-14
Applicant: Infineon Technologies AG
Inventor： Alexander MELZER , Andreas DOLLINGER , Rene KOBLER , Georg KREBELDER , Christoph WAGNER , Martin WIESSFLECKER
Abstract: A radar system includes a local oscillator for generating a local oscillator signal, transmission channels, and a reception channel. The transmission channels are designed to generate and output RF radar signals based on the local oscillator signal The transmission channels have phase shifters for setting the phase of the RF radar signals. The reception channel is designed to receive an RF signal and to convert it into a baseband signal by using the local oscillator signal supplied thereto. A method includes operating the local oscillator in a CW mode, setting a specific combination of phase shifts for the phase shifters of the transmission channels, altering the phase of the local oscillator signal supplied to the reception channel or of the phase shifts of the phase shifters by a phase offset, and ascertaining that phase offset for which the baseband signal at least approximately assumes a maximum.
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公开(公告)号：US20210025973A1
公开(公告)日：2021-01-28
申请号：US16909113
申请日：2020-06-23
Applicant: Infineon Technologies AG
Inventor： Vincenzo FIORE , Werner ARRIOLA , Rene KOBLER , Oliver LANG , Alexander MELZER
IPC: G01S7/40
Abstract: A method for the use in a radar system is described herein. In accordance with one embodiment, the method includes providing a local oscillator signal to an RF output channel of a radar system. The RF output channel is configured to generate, in an enabled state, an RF output signal based on the local oscillator signal. The method further includes determining a first measurement signal based on the local oscillator signal and a first representation of the RF output signal, while the RF output channel is disabled, and thus the first measurement signal represents crosstalk. Further, the method includes determining a second measurement signal based on the local oscillator signal and a second representation of the RF output signal while the RF output channel is enabled. A phase value associated with the RF output channel is determined based on the first measurement signal and the second measurement signal.
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Patent Agency Ranking
公开(公告)号：US20190383929A1
公开(公告)日：2019-12-19
申请号：US16440211
申请日：2019-06-13
Applicant: Infineon Technologies AG
Inventor： Alexander MELZER , Bernhard GSTOETTENBAUER , Alexander ONIC , Clemens PFEFFER , Christian SCHMID
Abstract: A radar system includes a first radar chip with a first RF contact, a second radar chip with a second RF contact, an RF signal path connecting the first RF contact to the second RF contact, and a local oscillator arranged in the first radar chip and configured to generate an RF oscillator signal, and which is coupled to the first RF contact to transmit the RF oscillator signal to the second radar chip. A feedback circuit arranged in the second radar chip is switchably connected to the second RF contact and is configured to reflect at least part of the RF oscillator signal arriving over the RFRF signal path as an RF feedback signal. A measurement circuit, arranged in the first radar chip, coupled to the first RF contact via a coupler receives the RF feedback signal and is configured to determine a signal that represents a phase shift.
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公开(公告)号：US20190242972A1
公开(公告)日：2019-08-08
申请号：US16266523
申请日：2019-02-04
Applicant: Infineon Technologies AG
Inventor： Alexander MELZER , Mario HUEMER , Paul MEISSNER , Fisnik SULEJMANI , Matthias WAGNER
IPC: G01S7/292 , G01S13/12 , G01S13/534
CPC classification number: G01S7/2923 , G01S7/023 , G01S7/35 , G01S7/354 , G01S7/36 , G01S7/40 , G01S13/12 , G01S13/34 , G01S13/343 , G01S13/534 , G01S13/93 , G01S13/931 , G01S2007/356
Abstract: A radar method is described herein. In accordance with one embodiment the method includes receiving a plurality of chirp echoes of transmitted radar signals, generating a digital signal based on the plurality of chirp echoes, and calculating a range map based on the digital signal. The range map includes a plurality of values, each value is represented by an amplitude value and a phase value, and each value is associated with one frequency bin of a set of frequency bins and one chirp echo of the plurality of chirp echoes. The method further includes identifying chirp echoes which are affected by interference and determining, for one or more selected frequency bins, corrected phase values based on phase values that are associated with chirp echoes not identified as affected by interference.
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公开(公告)号：US20240230836A9
公开(公告)日：2024-07-11
申请号：US18048704
申请日：2022-10-21
Applicant: Infineon Technologies AG
Inventor： Esmaeil KAVOUSI GHAFI , Alexander MELZER , Matthias WAGNER , Oliver LANG
CPC classification number: G01S7/40 , G01S7/356 , G01S13/584 , G01S13/89
Abstract: A radar device may generate an integrated range-velocity map by combining data from a plurality of range-velocity maps. Each range-velocity map may be associated with a respective radar channel from a plurality of radar channels. The radar device may identify a first peak in the integrated range-velocity map. The first peak may indicate one or more radar targets in the integrated range-velocity map and being identified by a first bin having a first range-velocity bin index. The radar device may determine a first data set by extracting, from each range-velocity map, data that is included in a respective bin associated with the first range-velocity bin index. The radar device may process the first data set to determine a first set of phase imbalances associated with the plurality of radar channels.
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公开(公告)号：US20230118317A1
公开(公告)日：2023-04-20
申请号：US17506048
申请日：2021-10-20
Applicant: Infineon Technologies AG
Inventor： Alexander MELZER , Rainer FINDENIG
Abstract: A radio frequency (RF) circuit includes an input terminal configured to receive a reception signal from an antenna; an output terminal configured to output a digital output signal; a receive path including a mixer and an analog-to-digital converter (ADC), wherein the receive path is coupled to and between the input and output terminals, wherein the receive path includes an analog portion and a digital portion, and wherein the ADC generates a digital signal based on an analog signal received from the analog portion; a test signal generator configured to generate an analog test signal injected into the analog portion of the receive path; and a digital processor configured to receive a digital test signal from the digital portion, the digital test signal being derived from the analog test signal, analyze a frequency spectrum of the digital test signal, and determine a quality of the digital test signal.
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公开(公告)号：US20230014179A1
公开(公告)日：2023-01-19
申请号：US17852794
申请日：2022-06-29
Applicant: Infineon Technologies AG
Inventor： Matthias WAGNER , Alexander MELZER
Abstract: The present disclosure relates to a radar device, including a transmitter circuit configured to generate an RF oscillator signal and to transmit an RF fault detection signal based on the RF oscillator signal, a receiver circuit configured to receive an RF reception signal based on the RF fault detection signal and to mix the RF reception signal with the RF oscillator signal in order to obtain a down-converted reception signal, and a fault detection circuit configured to detect a hardware fault of the radar device based on a phase of the down-converted reception signal.
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