Patents by Inventor Christopher Stumpf

Christopher Stumpf 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: 12313719
    Abstract: The present disclosure relates to a power sensor arrangement for on-wafer power calibration including a power sensor(s). The power sensor(s) include: a first connection surface which is arranged to receive a probe tip of a probing device; a power measurement cell which is electrically connected to the first connection surface, wherein the power measurement cell is configured to measure a power level of an RF signal applied to the first connection surface; an analog-to-digital converter (ADC) which is configured to digitalize an output signal of the power measurement cell to generate a digitalized data stream; and an encoding unit configured to encode the digitalized data stream. The encoding unit is configured to output the encoded data stream to: the first connection surface, a second connection surface of the power sensor(s), or an antenna unit of the power sensor arrangement for forwarding the encoded data stream.
    Type: Grant
    Filed: August 11, 2023
    Date of Patent: May 27, 2025
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Christopher Stumpf, Daniel Mueller-Remer
  • Publication number: 20250052845
    Abstract: The present disclosure relates to a power sensor arrangement for on-wafer power calibration including a power sensor(s). The power sensor(s) include: a first connection surface which is arranged to receive a probe tip of a probing device; a power measurement cell which is electrically connected to the first connection surface, wherein the power measurement cell is configured to measure a power level of an RF signal applied to the first connection surface; an analog-to-digital converter (ADC) which is configured to digitalize an output signal of the power measurement cell to generate a digitalized data stream; and an encoding unit configured to encode the digitalized data stream. The encoding unit is configured to output the encoded data stream to: the first connection surface, a second connection surface of the power sensor(s), or an antenna unit of the power sensor arrangement for forwarding the encoded data stream.
    Type: Application
    Filed: August 11, 2023
    Publication date: February 13, 2025
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventors: Christopher STUMPF, Daniel MUELLER-REMER
  • Patent number: 10094894
    Abstract: An arrangement includes a superconducting split ring resonator, a cryostat, and a copper coil. The resonator is arranged in the cryostat and includes at least one ring-shaped conductor made of a superconducting material and including an opening and a taper. The copper coil may be used to transmit a MRI excitation signal. This signal causes a current to be induced in the conductor that leads to the breakdown of the superconductivity. The conductor is detuned and therefore no longer develops an interfering effect. It is possible for the effect of the breakdown of superconductivity to be used for detuning in a targeted manner. After the transmission is complete, the conductor returns into the superconducting state and acts as a superconducting reception antenna for the MRI measurement signal. The copper coil is inductively coupled to the conductor and configured to read out the signal induced in the conductor.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: October 9, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Andreas Fackelmeier, Sebastian Martius, Robert Rehner, Christopher Stumpf, Markus Vester
  • Publication number: 20150241528
    Abstract: An arrangement includes a superconducting split ring resonator, a cryostat, and a copper coil. The resonator is arranged in the cryostat and includes at least one ring-shaped conductor made of a superconducting material and including an opening and a taper. The copper coil may be used to transmit a MRI excitation signal. This signal causes a current to be induced in the conductor that leads to the breakdown of the superconductivity. The conductor is detuned and therefore no longer develops an interfering effect. It is possible for the effect of the breakdown of superconductivity to be used for detuning in a targeted manner. After the transmission is complete, the conductor returns into the superconducting state and acts as a superconducting reception antenna for the MRI measurement signal. The copper coil is inductively coupled to the conductor and configured to read out the signal induced in the conductor.
    Type: Application
    Filed: February 26, 2015
    Publication date: August 27, 2015
    Inventors: Andreas Fackelmeier, Sebastian Martius, Robert Rehner, Christopher Stumpf, Markus Vester