Patents by Inventor Dan Denninghoff

Dan Denninghoff 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: 10340574
    Abstract: A spatial power-combining device and an antenna structure designed for high efficiency, high frequency, and ultra-wide bandwidth operation. The antenna structure may include a signal conductor and a ground conductor that are entirely separated by air. A spatial power-combining device may include a plurality of amplifier assemblies including multiple output antenna structures and an output coaxial waveguide section configured to concurrently combine signals received from each output antenna structure of the plurality of amplifier assemblies. The plurality of amplifier assemblies may also include multiple input antenna structures and an input coaxial waveguide configured to provide an input signal concurrently to each input antenna structure of the plurality of amplifier assemblies.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 2, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Ankush Mohan, Dan Denninghoff, John Kitt, Soack Yoon
  • Patent number: 10297894
    Abstract: A spatial power-combining device and an antenna structure designed for high efficiency, high frequency, and ultra-wide bandwidth operation. The antenna structure may include a signal conductor and a ground conductor that are entirely separated by air. A spatial power-combining device may include a plurality of amplifier assemblies including multiple output antenna structures and an output coaxial waveguide section configured to concurrently combine signals received from each output antenna structure of the plurality of amplifier assemblies. The plurality of amplifier assemblies may also include multiple input antenna structures and an input coaxial waveguide configured to provide an input signal concurrently to each input antenna structure of the plurality of amplifier assemblies.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 21, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Ankush Mohan, Dan Denninghoff, John Kitt, Soack Yoon
  • Publication number: 20190068140
    Abstract: Spatial power-combining devices with increased output power are disclosed. A spatial power-combining device includes a plurality of amplifier assemblies and each of the amplifier assemblies includes a plurality of amplifiers separately coupled to a plurality of antennas. An amplifier assembly includes a first amplifier sub-assembly and a second amplifier sub-assembly. The first amplifier sub-assembly includes a first amplifier, a first input antenna structure coupled to the first amplifier, and a first output antenna structure coupled to the first amplifier. The second amplifier sub-assembly includes a second amplifier, a second input antenna structure coupled to the second amplifier, and a second output antenna structure coupled to the second amplifier.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 28, 2019
    Inventors: Ankush Mohan, Dan Denninghoff
  • Publication number: 20190067783
    Abstract: Spatial power-combining devices and, in particular, spatial power-combining devices with filtering elements are disclosed. A spatial power-combining device includes a plurality of amplifier assemblies and each amplifier assembly includes an input antenna structure, an amplifier, an output antenna structure, and a filtering element. A filtering element may be an integral single component with an input signal conductor of the input antenna structure or an integral single component with an output signal conductor of the output antenna structure. In some aspects, a filtering element may be an integral single component with both the input signal conductor and the output signal conductor.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 28, 2019
    Inventors: Ankush Mohan, Dan Denninghoff
  • Publication number: 20190068141
    Abstract: Monolithic microwave integrated circuits (MMICs) with phase tuning are disclosed. A MMIC structure may include a MMIC amplifier with electrically coupled input and output lines. The MMIC structure may further include an adjustable cover over the MMIC amplifier that includes at least one portion that can be adjusted closer to or farther away from either the input or output lines. In this manner, a signal capacitance between the adjustable cover and the input or output lines is adjustable, and accordingly, a signal phase of the MMIC structure may be tuned. A spatial power-combining device may include a plurality of amplifier assemblies, wherein each amplifier assembly includes a MMIC amplifier with an adjustable cover. In this manner, the plurality of amplifier assemblies may be phase-tuned to a target value.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 28, 2019
    Inventors: Soack Yoon, Ankush Mohan, Dan Denninghoff
  • Publication number: 20190067781
    Abstract: A spatial power-combining device and an antenna structure designed for high efficiency, high frequency, and ultra-wide bandwidth operation. The antenna structure may include a signal conductor and a ground conductor that are entirely separated by air. A spatial power-combining device may include a plurality of amplifier assemblies including multiple output antenna structures and an output coaxial waveguide section configured to concurrently combine signals received from each output antenna structure of the plurality of amplifier assemblies. The plurality of amplifier assemblies may also include multiple input antenna structures and an input coaxial waveguide configured to provide an input signal concurrently to each input antenna structure of the plurality of amplifier assemblies.
    Type: Application
    Filed: December 18, 2017
    Publication date: February 28, 2019
    Inventors: Ankush Mohan, Dan Denninghoff, John Kitt, Soack Yoon
  • Publication number: 20190068123
    Abstract: Antenna waveguide transitions for solid state power amplifiers (SSPAs) are disclosed. An SSPA includes a waveguide channel that is configured to propagate an input signal, such as an electromagnetic signal, from an input port to a solid state amplifier for amplification. The waveguide channel is further configured to propagate an amplified signal from the solid state amplifier to an output port. Waveguide transitions to and from the solid state amplifier are bandwidth matched to the waveguide channel. Additionally, the waveguide transitions may be thermally coupled to the waveguide channel. The waveguide transitions may include antenna structures that have a signal conductor and a ground conductor. In this manner, the SSPA may have improved broadband coupling as well as improved thermal dissipation for heat generated by the solid state amplifier.
    Type: Application
    Filed: July 11, 2018
    Publication date: February 28, 2019
    Inventors: Ankush Mohan, Soack Yoon, Dan Denninghoff
  • Publication number: 20180183392
    Abstract: A gallium nitride (GaN) power amplifier having a plurality of amplifier stages integrated into a monolithic integrated circuit is disclosed. The plurality of amplifier stages is coupled together between a radio frequency signal input and a radio frequency signal output, wherein at least one of the plurality of amplifier stages includes a first GaN transistor that is configured to have a first breakdown voltage that is no more than 75% of a second breakdown voltage of a second GaN transistor included in a different one of the plurality of amplifier stages.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 28, 2018
    Inventors: Kevin Wesley Kobayashi, Dan Denninghoff, Jose Jimenez