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    Architecture including a hybrid coupler, a quadrature down-converter, and a baseband signal linear combiner
    2.
    发明授权
    Architecture including a hybrid coupler, a quadrature down-converter, and a baseband signal linear combiner 有权

    公开(公告)号：US12158540B2

    公开(公告)日：2024-12-03

    申请号：US17550250

    申请日：2021-12-14

    Applicant: Infineon Technologies AG

    Inventor： Vincenzo Fiore

    IPC: G01S7/40 ,  G01S7/35

    Abstract: A radio frequency (RF) circuit includes a signal path coupled between two RF inputs and at least one baseband output terminal. The signal path includes a 90° hybrid coupler including a first port that receives a first RF signal and a second port that receives a second RF signal. The 90° hybrid coupler generates a first coupler output signal based on the first RF signal and the second RF signal and generates a second coupler output signal based on the first RF signal and the second RF signal. The signal path includes a quadrature down-converter configured to down-convert the first coupler output signal into a first baseband signal and down-convert the second coupler output signal into a second baseband signal. The RF circuit includes a baseband combiner circuit configured to combine the first baseband signal and the second baseband signal to generate at least one of output signal.

    Transmission phase measurement and calibration method utilizing higher-order frequency bins
    5.
    发明授权
    Transmission phase measurement and calibration method utilizing higher-order frequency bins 有权

    公开(公告)号：US11018728B2

    公开(公告)日：2021-05-25

    申请号：US16423499

    申请日：2019-05-28

    Applicant: Infineon Technologies AG

    Inventor： Oliver Lang ,  Werner Arriola ,  Vincenzo Fiore ,  Alexander Melzer

    IPC: H04B7/0408 ,  H04B1/48 ,  H03M1/12 ,  G01S13/82 ,  G01S13/34 ,  G01S7/40

    Abstract: A circuit includes a transmission channel that outputs a continuous-wave signal based on a reference signal, a transmit monitoring signal path that couples out a portion of the transmit signal as a monitoring signal, a test phase shifter that receives the reference signal and generates a phase-shifted signal based on a sequence of phase offsets applied to the reference signal, a phase mixer that mixes the phase-shifted signal and the monitoring signal to generate a mixer output signal including a plurality of direct current (DC) values, an analog-to-digital converter that samples the mixer output signal in order to provide a sequence of DC values; and a monitor circuit that applies a discrete Fourier transform (DFT) to the sequence of DC values to generate a plurality of DFT bins with corresponding DFT bin values, and generate compensated phase information of the transmission channel using at least two DFT bin values.

    Phase error determination using two modulators
    6.
    发明授权
    Phase error determination using two modulators 有权

    公开(公告)号：US11239990B2

    公开(公告)日：2022-02-01

    申请号：US16891445

    申请日：2020-06-03

    Applicant: Infineon Technologies AG

    Inventor： Vincenzo Fiore ,  Werner Arriola ,  Oliver Lang ,  Alexander Melzer

    IPC: H04L7/00

    Abstract: Noise test systems, methods, and circuitries are provided for determining a phase error of a first modulator using a second modulator. In one example, an integrated circuit device includes a first modulator configured to modulate a first signal to generate a first modulated signal and a second modulator configured to modulate a second signal to generate a second modulated signal. The first signal and the second signal are based on the same reference signal. The integrated circuit device also includes analysis circuitry configured to determine a phase error of the first modulator based on the first modulated signal and the second modulated signal.

    Health monitoring of a circuit
    7.
    发明授权
    Health monitoring of a circuit 有权

    公开(公告)号：US10955464B2

    公开(公告)日：2021-03-23

    申请号：US15960911

    申请日：2018-04-24

    Applicant: Infineon Technologies AG

    Inventor： Vincenzo Fiore ,  Oliver Frank ,  Helmut Kollmann ,  Michael Platzer ,  Thomas Sailer ,  Jochen O. Schrattenecker

    IPC: G01R31/28 ,  G01R19/10

    Abstract: A method is disclosed use with a circuit device that includes a circuit having a predetermined voltage-current characteristic and a detector configured to detect a voltage-current relation of the circuit. The method includes using the detector to detect the voltage-current relation of the circuit, and indicating if the detected voltage-current relation differs from the predetermined voltage-current characteristic. A circuit device includes a circuit having a predetermined voltage-current characteristic, and a detector configured to detect a voltage-current relation of the circuit. The circuit device is configured to indicate if the detected voltage-current relation differs from the predetermined voltage-current characteristic.

    System and MMIC architecture for coherent multi-chip phased array MIMO applications
    8.
    发明授权
    System and MMIC architecture for coherent multi-chip phased array MIMO applications 有权

    公开(公告)号：US11914069B2

    公开(公告)日：2024-02-27

    申请号：US17128876

    申请日：2020-12-21

    Applicant: Infineon Technologies AG

    Inventor： Vincenzo Fiore

    IPC: G01S7/40 ,  G01S7/35 ,  H04B7/0413

    CPC classification number: G01S7/40 ,  G01S7/352 ,  G01S7/4017 ,  H04B7/0413

    Abstract: A radio frequency (RF) system includes a radar monolithic microwave integrated circuit (MMIC), which includes: a phase detector including a test input port, and a monitoring input port, wherein the phase detector is configured to generate an output signal that represents a phase difference between a test signal received at the test input port and a monitoring signal received at the monitoring input port; a test signal path including at least one active component, the test signal path configured to receive a local oscillator signal and provide the local oscillator signal as the test signal to the test input port during a first measurement interval; and a passive signal path configured to receive the local oscillator signal and provide the local oscillator signal to the monitoring input port as the monitoring signal during the first measurement interval.

    Phase calibration of a radar system with crosstalk cancellation
    9.
    发明授权
    Phase calibration of a radar system with crosstalk cancellation 有权

    公开(公告)号：US11635489B2

    公开(公告)日：2023-04-25

    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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