Patents by Inventor Fred Shimabukuro

Fred Shimabukuro 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).

  • Method and apparatus for low-loss signal transmission
    Patent number: 7315678
    Abstract: The present invention relates to the field of radio-frequency (RF) waveguides. More specifically, the present invention pertains to a method and apparatus that provides ultra-low-loss RF waveguide structures targeted between approximately 300 GHz and approximately 30 THz. The RF waveguide includes a hollow core and a flexible honeycomb, periodic-bandgap structure surrounding the hollow core. The flexible honeycomb, periodic-bandgap structure is formed of a plurality of tubes formed of a dielectric material such as of low-loss quartz, polyethylene, or high-resistivity silicon. Using the RF waveguide, a user may attach a terahertz signal source to the waveguide and pass signals through the waveguide, while a terahertz signal receiver receives the signals.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: January 1, 2008
    Assignee: California Institute Of Technology
    Inventors: Peter Siegel, Cavour Yeh, Fred Shimabukuro, Scott Fraser
  • Method and apparatus for low-loss signal transmission
    Publication number: 20060165360
    Abstract: The present invention relates to the field of radio-frequency (RF) waveguides. More specifically, the present invention pertains to a method and apparatus that provides ultra-low-loss RF waveguide structures targeted between approximately 300 GHz and approximately 30 THz. The RF waveguide includes a hollow core and a flexible honeycomb, periodic-bandgap structure surrounding the hollow core. The flexible honeycomb, periodic-bandgap structure is formed of a plurality of tubes formed of a dielectric material such as of low-loss quartz, polyethylene, or high-resistivity silicon. Using the RF waveguide, a user may attach a terahertz signal source to the waveguide and pass signals through the waveguide, while a terahertz signal receiver receives the signals.
    Type: Application
    Filed: December 13, 2005
    Publication date: July 27, 2006
    Inventors: Peter Siegel, Cavour Yeh, Fred Shimabukuro, Scott Fraser