Patents by Inventor Michael Vieru

Michael Vieru 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).

  • Miniature, high performance MMIC compatible filter
    Patent number: 5319329
    Abstract: A small, high performance MMIC compatible filter having a suspended dielectric substrate transmission medium to achieve superior Q. The substrate is suspended within an opening formed in a surrounding housing and has a plurality of conductive paths disposed thereon. An elliptical function response provides optimum filter size and insertion loss for a given required out-of-band rejection by making use of finite transmission zeroes on each side of the passband.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: June 7, 1994
    Assignee: TRW Inc.
    Inventors: Ming-Jong Shiau, Michael Vieru, John C. Tippet