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公开(公告)号：US11681013B2
公开(公告)日：2023-06-20
申请号：US16886233
申请日：2020-05-28
Applicant: Infineon Technologies AG
Inventor： Alexander Melzer , Clemens Pfeffer
IPC: G01S7/32 , G01S7/35 , G01S7/03 , G01S13/58 , G01S13/32 , G01S13/931 , G01S13/34 , G01S13/00 , G01S13/87
CPC classification number: G01S7/032 , G01S7/35 , G01S7/03 , G01S7/352 , G01S13/003 , G01S13/32 , G01S13/343 , G01S13/583 , G01S13/584 , G01S13/878 , G01S13/931
Abstract: A radar system and a method for a radar system are described. In accordance with one exemplary embodiment, the method includes generating a local oscillator signal in a first radar chip, generating a frequency-divided signal from the local oscillator signal by means of a frequency divider arranged in the first radar chip, transmitting the frequency-divided signal to a second radar chip, and transmitting the local oscillator signal to the second radar chip. The local oscillator signal received in the second radar chip is fed to an output channel of the second radar chip, which generates an output signal on the basis thereof. The method further includes generating—on the basis of the output signal of the output channel and the frequency-divided signal received by the second radar chip—a signal indicating a phase angle of the output signal relative to the received frequency-divided signal.
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公开(公告)号：US10191143B2
公开(公告)日：2019-01-29
申请号：US15196560
申请日：2016-06-29
Applicant: Infineon Technologies AG
Inventor： Herbert Jaeger , Clemens Pfeffer
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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Patent Agency Ranking
公开(公告)号：US11156709B2
公开(公告)日：2021-10-26
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：US10794993B2
公开(公告)日：2020-10-06
申请号：US16237148
申请日：2018-12-31
Applicant: Infineon Technologies AG
Inventor： Herbert Jaeger , Clemens Pfeffer
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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公开(公告)号：US11550028B2
公开(公告)日：2023-01-10
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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公开(公告)号：US20170031005A1
公开(公告)日：2017-02-02
申请号：US15196560
申请日：2016-06-29
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.
Abstract translation: 本公开涉及用于校准IQ调制器的概念。 校准方法包括设置与星座图的期望星座点相对应的IQ调制器的一个或多个控制值以产生IQ调制信号; 将IQ调制信号与载波信号混合以产生IQ调制的发射信号; 在预定位置向所述预定义对象发送所述IQ调制的发送信号; 从所述预定对象接收所述IQ调制的发射信号的反射; 将接收到的IQ调制的发射信号的反射与载波信号混合以产生下变频的接收信号; 将下变频接收信号的幅度和/或相位与星座图的期望星座点进行比较; 以及调整IQ调制器的一个或多个控制值，直到所接收的下变频信号和期望星座点的振幅和/或相位之间的偏差降到预定阈值以下。
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公开(公告)号：US11486999B2
公开(公告)日：2022-11-01
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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