Patents by Inventor Benjamin S. Shih

Benjamin S. Shih 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 stripline devices
    Patent number: 5406233
    Abstract: A stripline device using at least one strip conductor and at least one ground plane separated therefrom by a dielectric substrate. The ground plane is caused to move relative to the strip conductor so as to change the propagation velocity of the stripline device. In a particular embodiment, a layer of piezoelectric material is positioned adjacent the ground plane and a voltage applied to the piezoelectric layer causes its dimensions to change and provide a changing air gap between the substrate and the ground plane to change the propagation velocity accordingly.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: April 11, 1995
    Assignee: Massachusetts Institute of Technology
    Inventors: Benjamin S. Shih, Daniel E. Oates