Patents by Inventor Ruediger Bauder

Ruediger Bauder has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11245381
    Abstract: In accordance with an embodiment, an RF system includes a transmit path having a first tunable transmit band stop filter, and a power amplifier coupled to an output of the first tunable transmit band stop filter, where the first tunable transmit band stop filter is configured reject a receive frequency and pass a transmit frequency; a receive path comprising an LNA; and a duplex filter having a transmit path port coupled to an output of the power amplifier, a receive path port coupled to an input of the LNA, and an antenna port, where the duplex filter is configured to pass the transmit frequency and reject the receive frequency between the antenna port and the transmit path port, pass the receive frequency and reject the transmit frequency between the antenna port and the receive path port.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: February 8, 2022
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Stefan Helmut Schmalzl, Peter Pfann, Ruediger Bauder, Hans-Joerg Timme
  • Patent number: 11233493
    Abstract: Methods for manufacturing resonator structures and corresponding resonator structures are described. A first wafer including a first piezoelectric material is singulated and bonded to a second wafer.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 25, 2022
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joerg Timme, Carsten Ahrens, Ruediger Bauder
  • Patent number: 11057018
    Abstract: A notch filter includes a first inductor coupled between an input node and an output node, a dual-resonator structure coupled between the input node and the output node, and a second inductor coupled between the dual-resonator structure and ground, and a bandpass filter includes a capacitor coupled between an input node and an output node, and a dual-resonator structure coupled between the input node, the output node, and ground.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: July 6, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Hans-Joerg Timme, Ruediger Bauder, Andreas Bogner
  • Patent number: 11018652
    Abstract: A resonator element for use in a filter is provided. The resonator element includes a first resonator acoustically coupled to a second or third resonator or both. The first resonator has terminals for incorporation in a filter structure. A tuning circuit is coupled to the second or third resonator or both to enable tuning of the resonator element. The tuning circuit includes a variable capacitor and an inductor.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 25, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Hans-Joerg Timme, Ruediger Bauder
  • Patent number: 11012051
    Abstract: In accordance with an embodiment, an RF system includes a transmit path having a transmit RF filter and an adjustable transmit phase shifter/matching network coupled between the transmit RF filter and a transmit antenna port, where the adjustable transmit phase shifter/matching network is configured to transform an impedance of the transmit RF filter at a receive frequency from a first lower impedance to a first higher impedance at the transmit antenna port; and a receive path having a receive RF filter and an adjustable receive phase shifter/matching network coupled between the receive RF filter and a receive antenna port, where the adjustable receive phase shifter/matching network is configured to transform an impedance of the receive RF filter at a transmit frequency from a second lower impedance to a second higher impedance at the receive antenna port.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 18, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Stefan Helmut Schmalzl, Peter Pfann, Ruediger Bauder, Hans-Joerg Timme
  • Patent number: 11005451
    Abstract: A bandpass filter includes a capacitor coupled between an input node and an output node, and a dual-resonator structure coupled between the input node, the output node, and ground.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 11, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Ruediger Bauder, Andreas Bogner, Hans-Joerg Timme
  • Patent number: 11005449
    Abstract: A notch filter includes an inductor coupled between an input node and an output node, and a dual-resonator structure coupled between the input node, the output node, and ground.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 11, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Ruediger Bauder, Andreas Bogner, Hans-Joerg Timme
  • Patent number: 10979021
    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.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: April 13, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Peter Pfann, Stefan Helmut Schmalzl, Ruediger Bauder, Hans-Joerg Timme
  • Patent number: 10965274
    Abstract: In accordance with an embodiment, a method of operating an RF system includes filtering a first wideband RF signal using a wideband filter bank. Filtering the first RF signal includes separating the first wideband RF signal into frequency cluster signals, where each frequency cluster signal of the frequency cluster signals includes different frequency ranges, the first wideband RF signal includes multiple RF bands, and each of the different frequency ranges comprises a plurality of RF bands of the multiple RF bands. The method further includes band stop filtering at least one of the frequency cluster signals to produce a band stopped frequency cluster signal.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: March 30, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Ruediger Bauder, Hans-Joerg Timme, Stefan Helmut Schmalzl, Peter Pfann
  • Patent number: 10931262
    Abstract: A resonator element for use in a filter is provided. The resonator element includes a first resonator acoustically coupled to a second or third resonator or both. The first resonator has terminals for incorporation in a filter structure. A tuning circuit is coupled to the second or third resonator or both to enable tuning of the resonator element. The tuning circuit includes a variable capacitor and an inductor.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: February 23, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Hans-Joerg Timme, Ruediger Bauder
  • Patent number: 10840951
    Abstract: In accordance with an embodiment, a circuit includes a plurality of filter circuits having a first port, a second port and a third port, where a second port of a first of the plurality of filter circuits is coupled to a first port of a second of the plurality of filter circuits, and each of the plurality of filter circuits includes a first passive filter, a second passive filter, a first coupler and a combining network. The first coupler includes an input port coupled to the first port, an isolated port coupled to the second port, a first phase shifted port coupled to the first passive filter and a second phase shifted port coupled to the second passive filter, and the combining network includes a first input coupled to the first passive filter, a second input coupled to the second passive filter, and an output coupled to the third port.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: November 17, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventor: Ruediger Bauder
  • Patent number: 10840887
    Abstract: In accordance with an embodiment, a method of operating an RF system includes filtering a wideband RF signal using an adjustable center frequency bandpass filter to produce a filtered RF signal; amplifying the filtered RF signal to produce an amplified RF signal; and band stop filtering the amplified RF signal to produce a band stopped RF signal.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: November 17, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Stefan Helmut Schmalzl, Peter Pfann, Ruediger Bauder, Hans-Joerg Timme
  • Patent number: 10816581
    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.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: October 27, 2020
    Assignee: Infineon Technologies AG
    Inventors: Valentyn Solomko, Ruediger Bauder, Anthony Thomas
  • Patent number: 10680605
    Abstract: An RF switch includes series-coupled RF switch cells coupled between an RF input and ground, each RF switch cell having an input, and a biasing network having outputs for individually biasing each of the RF switch cell inputs to a distinct bias voltage based upon a rank number of the RF switch cell.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 9, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Bernd Schleicher, Ruediger Bauder, Daniel Kehrer, Valentyn Solomko
  • Publication number: 20200088773
    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.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 19, 2020
    Inventors: Valentyn Solomko, Ruediger Bauder, Anthony Thomas
  • Patent number: 10528502
    Abstract: Embodiments of bus interface systems are disclosed. In one embodiment, a bus interface system includes a master bus controller and a slave bus controller coupled along a bus line. The master bus controller is configured to generate an input data signal that is received by the slave bus controller along the bus line. The slave bus controller includes power conversion circuitry configured to convert the input data signal from the master bus controller into a supply voltage. By providing the power conversion circuitry, the slave bus controller is powered using the input data signal and without requiring an additional bus line to transfer a supply voltage to the slave bus controller.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: January 7, 2020
    Assignee: Qorvo US, Inc.
    Inventors: Christopher Truong Ngo, Alexander Wayne Hietala, Christian Rye Iversen, Ruediger Bauder
  • Patent number: 10491186
    Abstract: A resonator is described including a piezoelectric material with first and second electrodes provided on the piezoelectric material. An acoustic metamaterial at least partially surrounds an active region of the resonator.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: November 26, 2019
    Assignee: Infineon Technologies AG
    Inventors: Jonathan Binder, Ruediger Bauder, Hans-Joerg Timme
  • Patent number: 10404233
    Abstract: A resonator element for use in a filter is provided. The resonator element includes a first resonator acoustically coupled to a second resonator. The first resonator has terminals for incorporation in a filter structure. A tuning circuit is coupled to the second resonator to enable tuning of the resonator element.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: September 3, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Ruediger Bauder, Hans-Joerg Timme
  • Publication number: 20190267990
    Abstract: An RF switch includes series-coupled RF switch cells coupled between an RF input and ground, each RF switch cell having an input, and a biasing network having outputs for individually biasing each of the RF switch cell inputs to a distinct bias voltage based upon a rank number of the RF switch cell
    Type: Application
    Filed: February 28, 2018
    Publication date: August 29, 2019
    Inventors: Bernd Schleicher, Ruediger Bauder, Daniel Kehrer, Valentyn Solomko
  • Publication number: 20190245533
    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.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 8, 2019
    Inventors: Bernd Schleicher, Winfried Bakalski, Ruediger Bauder, Valentyn Solomko