Patents by Inventor Jeremy J. Holdstock

Jeremy J. Holdstock 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).

  • Tunable radio frequency (RF) absorber and thermal heat spreader
    Patent number: 11784416
    Abstract: An apparatus includes a first layer having an RF lossy material, a second layer having the RF lossy material, and a plurality of conductive or resistive pads arranged in a planar array between the first layer and the second layer. The apparatus may also include a plurality of thermal vias, where each thermal via may correspond to one of the pads, may extend through at least the first layer, and may be formed of a thermally-conductive material. Dimensions of each pad may be selected based on a desired resonant frequency band, and the desired resonant frequency band may be associated with RF energy transmitted by at least one RF source in proximity to the apparatus.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: October 10, 2023
    Assignee: Raytheon Company
    Inventors: Jeremy J. Holdstock, James E. Foreman, David R. Gorman, Darrell W. Miller
  • TUNABLE RADIO FREQUENCY (RF) ABSORBER AND THERMAL HEAT SPREADER
    Publication number: 20210210862
    Abstract: An apparatus includes a first layer having an RF lossy material, a second layer having the RF lossy material, and a plurality of conductive or resistive pads arranged in a planar array between the first layer and the second layer. The apparatus may also include a plurality of thermal vias, where each thermal via may correspond to one of the pads, may extend through at least the first layer, and may be formed of a thermally-conductive material. Dimensions of each pad may be selected based on a desired resonant frequency band, and the desired resonant frequency band may be associated with RF energy transmitted by at least one RF source in proximity to the apparatus.
    Type: Application
    Filed: January 6, 2020
    Publication date: July 8, 2021
    Inventors: Jeremy J. Holdstock, James E. Foreman, David R. Gorman, Darrell W. Miller