公开(公告)号：US11269055B2

公开(公告)日：2022-03-08

申请号：US16285863

申请日：2019-02-26

Applicant: Infineon Technologies AG

Inventor： Alexander Onic ,  Bernhard Gstoettenbauer ,  Thomas Langschwert ,  Jochen O. Schrattenecker ,  Rainer Stuhlberger

IPC: G01S7/40 ,  G01S7/35 ,  G01R31/28 ,  G01S13/34

Abstract: A method for testing at least one reception path in a radar receiver is provided. The reception path contains a mixer and a downstream signal processing circuit. The method involves injecting a test signal into the reception path, so that at least a first test tone having a frequency in a passband of the signal processing circuit and a second test tone having a frequency outside the passband are present on the reception path downstream of the mixer. Further, the method involves tapping off a baseband signal, generated by the signal processing circuit, from the reception path, the baseband signal being based on the test signal.

公开(公告)号：US20210391650A1

公开(公告)日：2021-12-16

申请号：US17412694

申请日：2021-08-26

Applicant: Infineon Technologies AG

Inventor： Jochen O. Schrattenecker ,  Niels CHRISTOFFERS ,  Vincenzo FIORE ,  Bernhard GSTOETTENBAUER ,  Helmut KOLLMANN ,  Alexander MELZER ,  Alexander ONIC ,  Rainer STUHLBERGER ,  Mathias ZINNOECKER

IPC: H01Q3/36 ,  G01S7/35 ,  G01S7/40 ,  H03L7/06 ,  G01S13/02 ,  G01S13/34 ,  G01S7/03 ,  G01S13/88

Abstract: A circuit includes a radio frequency (RF) channel including an input node and an output node and being configured to receive an RF oscillator signal at the input node and to provide an RF output signal at the output node; a mixer configured to mix an RF reference signal and an RF test signal representative of the RF output signal to generate a mixer output signal; an analog-to-digital converter configured to sample the mixer output signal in order to provide a sequence of sampled values; and a control circuit configured to provide a sequence of phase offsets by phase-shifting at least one of the RF test signal and the RF reference signal using one or more phase shifters, calculate a spectral value from the sequence of sampled values; and calculate estimated phase information indicating a phase of the RF output signal based on the spectral value.

公开(公告)号：US10673544B2

公开(公告)日：2020-06-02

申请号：US16212883

申请日：2018-12-07

Applicant: Infineon Technologies AG

Inventor： Niels Christoffers ,  Vincenzo Fiore ,  Helmut Kollmann ,  Christian Rap ,  Jochen O. Schrattenecker ,  Peter Unterkircher ,  Christoph Wagner

IPC: H04B17/20 ,  H04B1/16 ,  G01S7/40 ,  H04B17/19 ,  H04B17/00 ,  H04B17/29 ,  H04L27/12

Abstract: The description is of a circuit which, according to one example embodiment, comprises the following: an input circuit node for receiving an RF oscillator signal; a test signal generator circuit, which comprises at least one modulator and which is embodied to generate an RF test signal by modulating the RF oscillator signal. Further, the circuit comprises at least one receive channel with a receiver circuit and a coupler, which is embodied to feed the RF test signal into the receiver circuit.

公开(公告)号：US10564202B2

公开(公告)日：2020-02-18

申请号：US15634588

申请日：2017-06-27

Applicant: Infineon Technologies AG

Inventor： Jochen O. Schrattenecker ,  Oliver Frank ,  Alexander Kaineder

IPC: G01R29/10 ,  G01R31/302 ,  G01S7/40 ,  G01R1/04 ,  H01Q1/32

Abstract: A test set-up for testing a system-in package with an integrated antenna is described herein. According to one exemplary embodiment, the test set-up includes a carrier with an RF probe arranged thereon and a test socket with resilient electric contacts. The test socket is mounted on the carrier and provides an electric contact to interconnects of the package when it is placed on the test socket. The test socket has an opening which is arranged superjacent to the RF probe.

公开(公告)号：US10090939B2

公开(公告)日：2018-10-02

申请号：US15685542

申请日：2017-08-24

Applicant: Infineon Technologies AG

Inventor： Oliver Frank ,  Guenter Haider ,  Jochen O. Schrattenecker

IPC: H04B17/00 ,  H04B17/14 ,  H04B15/00

Abstract: An integrated circuit is described herein. According to one or more embodiments, the integrated circuit includes a local oscillator with a voltage-controlled oscillator (VCO) that generates a local oscillator signal. Further, the integrated circuit includes a frequency divider coupled to the VCO downstream thereof. The frequency divider provides a frequency-divided local oscillator signal by reducing the frequency of the local oscillator signal by a constant factor. A first test pad of the integrated circuit is configured to receive a reference oscillator signal. Further, the integrated circuit includes a first mixer that receives the reference oscillator signal and the frequency-divided local oscillator signal to down-convert the frequency-divided local oscillator signal.

公开(公告)号：US10057795B2

公开(公告)日：2018-08-21

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

IPC: H04B3/46 ,  H04B17/00 ,  H04Q1/20 ,  H04W24/06 ,  H04B1/16 ,  H03F3/195 ,  H03M1/12

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.