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公开(公告)号：US20240402324A1
公开(公告)日：2024-12-05
申请号：US18669205
申请日：2024-05-20
Applicant: Infineon Technologies AG
Inventor： Philipp SCHERZ , Markus Josef LANG , Ulrich MOELLER , Clemens PFEFFER
Abstract: A radar apparatus includes a transmitter circuit. The transmitter circuit is configured to transmit, via a first transmit channel, a first sequence of FMCW radar chirps, and to transmit, via at least a second transmit channel, a second sequence of FMCW radar chirps concurrently with the first sequence of FMCW radar chirps. The radar apparatus includes a control circuit configured to control the first and second transmit channels to set phases of the FMCW radar chirps of the first and second sequences in accordance with a phase modulation scheme that includes a first unique phase code sequence assigned to the first sequence of FMCW radar chirps, and a second unique phase code sequence assigned to the second sequence of FMCW radar chirps. The first unique phase code sequence is combined with a scrambling phase code sequence. The second unique phase code sequence is combined with the scrambling phase code sequence.
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2.发明公开公开(公告)号：US20240137056A1
公开(公告)日：2024-04-25
申请号：US18490452
申请日：2023-10-18
Applicant: Infineon Technologies AG
Inventor： Clemens PFEFFER , Christoph WAGNER
CPC classification number: H04B1/0483 , H04B1/1027 , H04B2001/1072
Abstract: A radio-frequency integrated circuit includes a first radio-frequency channel and a first phase shifter in the first radio-frequency channel for setting a phase of the first radio-frequency channel based on predetermined phase values of a modulation scheme for signals of the first radio-frequency channel. A second phase shifter is provided in the first radio-frequency channel for fine-tuning the phase of the first radio-frequency channel based on fine-tuning information, the second phase shifter having a plurality of passive phase-shifting elements which are each able to be connected into the first radio-frequency channel or able to be disconnected from the first radio-frequency channel. The second phase shifter is configured to change a phase of the first radio-frequency channel by switching a selection of the plurality of passive phase-shifting elements into the first radio-frequency channel in accordance with the fine-tuning information.
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Patent Agency Ranking
公开(公告)号：US20200025870A1
公开(公告)日：2020-01-23
申请号：US16511769
申请日：2019-07-15
Applicant: Infineon Technologies AG
Inventor： Alexander MELZER , Bernhard GRESLEHNER-NIMMERVOLL , Clemens PFEFFER
Abstract: The description below relates to a method for a radar sensor. According to one example implementation, the method comprises receiving configuration data and storing the received configuration data in a first radar chip having multiple transmission channels. The configuration data contain multiple parameter sets for a chirp sequence and association information representing an association of a respective chirp of the chirp sequence with one of the multiple parameter sets. The method further comprises receiving a trigger signal in the first radar chip. The trigger signal indicates the beginning of a respective chirp of the chirp sequence. The transmission channels mentioned are repeatedly configured in sync with the trigger signal, wherein for each chirp of the chirp sequence the transmission channels are configured according to the respective association information. The method further comprises receiving an RF oscillator signal representing the chirp sequence, and supplying the RF oscillator signal to the accordingly configured transmission channels.
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4.发明公开公开(公告)号：US20240235593A9
公开(公告)日：2024-07-11
申请号：US18490452
申请日：2023-10-19
Applicant: Infineon Technologies AG
Inventor： Clemens PFEFFER , Christoph WAGNER
CPC classification number: H04B1/0483 , H04B1/1027 , H04B2001/1072
Abstract: A radio-frequency integrated circuit includes a first radio-frequency channel and a first phase shifter in the first radio-frequency channel for setting a phase of the first radio-frequency channel based on predetermined phase values of a modulation scheme for signals of the first radio-frequency channel. A second phase shifter is provided in the first radio-frequency channel for fine-tuning the phase of the first radio-frequency channel based on fine-tuning information, the second phase shifter having a plurality of passive phase-shifting elements which are each able to be connected into the first radio-frequency channel or able to be disconnected from the first radio-frequency channel. The second phase shifter is configured to change a phase of the first radio-frequency channel by switching a selection of the plurality of passive phase-shifting elements into the first radio-frequency channel in accordance with the fine-tuning information.
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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：US20190293784A1
公开(公告)日：2019-09-26
申请号：US16360818
申请日：2019-03-21
Applicant: Infineon Technologies AG
Inventor： Farhan Bin KHALID , Andreas OCH , Alexander MELZER , Clemens PFEFFER , Andre ROGER , Philipp SCHMIDT
Abstract: A radar system is described. In accordance with one example implementation, the radar system comprises a passive coupler arrangement and also a first radar chip, a second radar chip and a third radar chip. The radar chips each comprise at least one external RF contact and also a local oscillator designed to generate an RF oscillator signal at least in a switched-on state. The external RF contacts of the radar chips are coupled via the coupler arrangement in such a way that, in a first operating mode, the RF oscillator signal can be transferred from the first radar chip via the coupler arrangement to the second radar chip and the third radar chip, and that, in a second operating mode, the RF oscillator signal can be transferred from the second radar chip via the coupler arrangement to the third radar chip.
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公开(公告)号：US20190204413A1
公开(公告)日：2019-07-04
申请号：US16237148
申请日：2018-12-31
Applicant: Infineon Technologies AG
Inventor： Herbert JAEGER , Clemens PFEFFER
CPC classification number: G01S7/4004 , G01S7/35 , G01S7/352 , G01S7/4021 , G01S13/343 , G01S2007/358 , H04L27/36
Abstract: The present disclosure relates to a concept for calibrating an IQ modulator. A calibration method comprises setting one or more control values of the IQ modulator corresponding to a desired constellation point of a constellation diagram to generate an IQ modulating signal; mixing the IQ modulating signal with a carrier signal to generate an IQ modulated transmit signal; transmitting the IQ modulated transmit signal towards a predefined object at a predefined location; receiving a reflection of the IQ modulated transmit signal from the predefined object; mixing the received reflection of the IQ modulated transmit signal with the carrier signal to generate a down-converted receive signal; comparing amplitude and/or phase of the down-converted receive signal with the desired constellation point of the constellation diagram; and adjusting the one or more control values of the IQ modulator until a deviation between the amplitude and/or phase of the received down-converted signal and the desired constellation point falls below a predefined threshold.
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