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公开(公告)号：US20210382159A1
公开(公告)日：2021-12-09
申请号：US17403096
申请日：2021-08-16
Applicant: Infineon Technologies AG
Inventor： Florian STARZER , Helmut KOLLMANN , Alexander MELZER , Rainer STUHLBERGER , Roland VUKETICH , Mathias ZINNOECKER
Abstract: A radar method is described. According to one exemplary embodiment, the method includes generating a first RF oscillator signal in a first chip and supplying the first RF oscillator signal to a transmission (TX) channel of the first chip and transmitting the first RF oscillator signal from the TX channel of the first chip to the second chip via a transmission line.
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公开(公告)号：US20180332488A1
公开(公告)日：2018-11-15
申请号：US16034776
申请日：2018-07-13
Applicant: Infineon Technologies AG
Inventor： Florian STARZER , Peter BOGNER , Oliver FRANK , Guenter HAIDER , Michael KROPFITSCH , Thomas SAILER , Jochen O. SCHRATTENECKER , Rainer STUHLBERGER
CPC classification number: H04W24/06 , H03F3/195 , H03F2200/165 , H03F2200/333 , H03F2200/451 , H03M1/1245 , H04B1/16
Abstract: A radar sensor includes a mixer configured to receive an radio frequency (RF) input signal to down-convert the RF input signal into a base-band or intermediate frequency (IF) band, an analog-to-digital converter (ADC), and a signal processing chain coupled between the mixer and the ADC. The radar sensor further includes an oscillator circuit that is configured to generate a test signal. The ADC is coupled to an output of the signal processing chain, and is configured to generate a digital signal by digitizing an output signal of the signal processing chain, the output signal being derived from the test signal. The radar sensor further includes a digital signal processing circuit coupled to the ADC downstream thereof, the digital signal processing circuit being configured to perform a spectral analysis on frequency values of the digital signal.
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公开(公告)号：US20190181902A1
公开(公告)日：2019-06-13
申请号：US16270181
申请日：2019-02-07
Applicant: Infineon Technologies AG
Inventor： Helmut KOLLMANN , Jochen O. SCHRATTENECKER , Florian STARZER
Abstract: An RF front-end circuit of an RF transceiver is described herein. In accordance with one exemplary embodiment, the fronted circuit includes a local oscillator (LO) configured to generate an RF transmit signal, an RF output port coupled to the local oscillator, wherein the RF transmit signal is output at the RF output port, and a monitoring circuit receiving an input signal and configured to determine the phase of the input signal or the power of the input signal or both. A directional coupler is coupled to the RF output port and configured to direct a reflected signal incoming at the RF output port as input signal to the monitoring circuit, and a controller is configured to detect, based on the determined phase or power or both, a defect in a signal path operably connected to the RF output port.
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Patent Agency Ranking
公开(公告)号：US20190068295A1
公开(公告)日：2019-02-28
申请号：US16174867
申请日：2018-10-30
Applicant: Infineon Technologies AG
Inventor： Karl DOMINIZI , Oliver FRANK , Herbert JAEGER , Herbert KNAPP , Hao LI , Florian STARZER , Rainer STUHLBERGER , Jonas WURSTHORN
Abstract: One exemplary embodiment of the present invention relates to a circuit that includes at least one RF signal path for an RF signal and at least one power sensor, which is coupled to the RF signal path and configured to generate a sensor signal representing the power of the RF signal during normal operation of the circuit. The circuit further includes a circuit node for receiving an RF test signal during calibration operation of the circuit. The circuit node is coupled to the at least one power sensor, so that the at least one power sensor receives the RF test signal additionally or alternatively to the RF signal and generates the sensor signal as representing the power of the RF test signal.
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公开(公告)号：US20170353876A1
公开(公告)日：2017-12-07
申请号：US15610840
申请日：2017-06-01
Applicant: Infineon Technologies AG
Inventor： Florian STARZER , Peter BOGNER , Oliver FRANK , Guenter HAIDER , Michael KROPFITSCH , Thomas SAILER , Jochen O. SCHRATTENECKER , Rainer STUHLBERGER
CPC classification number: H04W24/06 , H03F3/195 , H03F2200/165 , H03F2200/333 , H03F2200/451 , H03M1/1245 , H04B1/16
Abstract: A radio frequency (RF) receive circuit is described herein. In accordance with one embodiment, the RF receive circuit includes a mixer configured to receive an RF input signal to down-convert the RF input signal into a base-band or intermediate frequency (IF) band, an analog-to-digital converter (ADC), and a signal processing chain coupled between the mixer and the ADC. The signal processing chain includes at least two circuit nodes. The RF receive circuit further includes an oscillator circuit that is configured to generate a test signal. The oscillator circuit is coupled to the signal processing chain and is configured to selectively feed the oscillator signal into one of the at least two circuit nodes.
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公开(公告)号：US20200025899A1
公开(公告)日：2020-01-23
申请号：US16105111
申请日：2018-08-20
Applicant: Infineon Technologies AG
Inventor： Florian STARZER , Helmut KOLLMANN , Alexander MELZER , Rainer STUHLBERGER , Roland VUKETICH , Mathias ZINNOECKER
Abstract: A radar method is described. According to one exemplary embodiment, the method includes generating a first RF oscillator signal in a first chip and supplying the first RF oscillator signal to a transmission (TX) channel of the first chip and transmitting the first RF oscillator signal from the TX channel of the first chip to the second chip via a transmission line.
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公开(公告)号：US20180172801A1
公开(公告)日：2018-06-21
申请号：US15834118
申请日：2017-12-07
Applicant: Infineon Technologies AG
Inventor： Jochen O. SCHRATTENECKER , Florian STARZER , Oliver FRANK , Michael KROPFITSCH , Georg KREBELDER , Helmut KOLLMANN , Thomas SAILER
IPC: G01S7/40
CPC classification number: G01S7/4021 , G01S7/032 , G01S7/352 , G01S2007/4069 , G01S2013/9321
Abstract: A radar device comprises a test signal generator including a digital harmonic oscillator that generates a digital oscillator signal with a first spectral component; a first digital-to-analog-converter that generates an analog oscillator signal based on the digital oscillator signal. Furthermore, the radar device comprises at least one radar channel receiving the analog oscillator signal during one or more self-tests.
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公开(公告)号：US20170153318A1
公开(公告)日：2017-06-01
申请号：US15358363
申请日：2016-11-22
Applicant: Infineon Technologies AG
Inventor： Alexander MELZER , Mario HUEMER , Alexander ONIC , Florian STARZER , Rainer STUHLBERGER
IPC: G01S7/40
Abstract: A method for estimating phase noise of an RF oscillator signal in a frequency-modulated continuous-wave (FMCW) radar system and related radar devices are provided. 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 an RF radar signal. Furthermore, the method includes down-converting the RF radar signal received from the artificial radar target from an RF frequency band to a base band, digitizing the down-converted RF radar signal to generate a digital radar signal, and calculating a decorrelated phase noise signal from the digital radar signal. A power spectral density of the decorrelated phase noise is then calculated from the decorrelated phase noise signal, and the power spectral density of the decorrelated phase noise is converted into a power spectral density of the phase noise of an RF oscillator signal.
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