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    RF Impedance Measurement and Tuning System
    2.
    发明申请
    RF Impedance Measurement and Tuning System 审中-公开

    公开(公告)号：US20200088773A1

    公开(公告)日：2020-03-19

    申请号：US16132816

    申请日：2018-09-17

    Applicant: Infineon Technologies AG

    Inventor： Valentyn Solomko ,  Ruediger Bauder ,  Anthony Thomas

    IPC: G01R27/06 ,  H04B1/3827 ,  H04B1/04 ,  H03H7/40

    Abstract: A radio-frequency system includes an impedance tuning network having a plurality of selectable impedance states and a first port for coupling to a complex load impedance, a detector coupled to a second port of the impedance tuning network and configured to measure scalar values of reflection coefficients at the second port, and a controller configured to, for a first radio-frequency band, sequentially tune the impedance tuning network to at least three different impedance states in each of which the detector measures a scalar value of a corresponding reflection coefficient at the second port, and estimates a value of the complex load impedance based on the scalar values measured by the detector.

    RF sensor in stacked transistors
    5.
    发明授权
    RF sensor in stacked transistors 有权

    公开(公告)号：US10250251B1

    公开(公告)日：2019-04-02

    申请号：US15891025

    申请日：2018-02-07

    Applicant: Infineon Technologies AG

    Inventor： Bernd Schleicher ,  Winfried Bakalski ,  Ruediger Bauder ,  Valentyn Solomko

    IPC: H03K17/16 ,  H03K17/687

    Abstract: An RF switch includes series-coupled RF switch cells coupled between an RF input and ground, a transistor including a first current node coupled to a first load resistor, a second current node coupled to ground, and a control node coupled to an internal switch node, and a filter having an input coupled to the first current node of the first transistor and an output for providing a DC voltage corresponding to the RF power present at the internal switch node.

    RF impedance measurement and tuning system
    9.
    发明授权
    RF impedance measurement and tuning system 有权

    公开(公告)号：US10816581B2

    公开(公告)日：2020-10-27

    申请号：US16132816

    申请日：2018-09-17

    Applicant: Infineon Technologies AG

    Inventor： Valentyn Solomko ,  Ruediger Bauder ,  Anthony Thomas

    IPC: G01R27/06 ,  H03H7/40 ,  H04B1/04 ,  H04B1/3827

    Abstract: A radio-frequency system includes an impedance tuning network having a plurality of selectable impedance states and a first port for coupling to a complex load impedance, a detector coupled to a second port of the impedance tuning network and configured to measure scalar values of reflection coefficients at the second port, and a controller configured to, for a first radio-frequency band, sequentially tune the impedance tuning network to at least three different impedance states in each of which the detector measures a scalar value of a corresponding reflection coefficient at the second port, and estimates a value of the complex load impedance based on the scalar values measured by the detector.

    System and Method for a Radio Frequency Filter
    10.
    发明申请
    System and Method for a Radio Frequency Filter 审中-公开

    公开(公告)号：US20190181907A1

    公开(公告)日：2019-06-13

    申请号：US16210582

    申请日：2018-12-05

    Applicant: Infineon Technologies AG

    Inventor： Peter Pfann ,  Stefan Helmut Schmalzl ,  Ruediger Bauder ,  Hans-Joerg Timme

    IPC: H04B1/50 ,  H04B1/04 ,  H04B1/00 ,  H03H9/48

    Abstract: In accordance with an embodiment, a method of operating an RF system includes generating a first RF signal having a first frequency; filtering the generated first RF signal to form a first filtered transmitted signal; producing a first coupled signal and a first transmitted signal from the first filtered transmitted signal; transmitting the first transmitted signal; transmitting a second RF signal having a second frequency; bandpass filtering the first coupled signal to form a first tunable bandpass filtered signal; and measuring a parameter of the first tunable bandpass filtered signal.

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