The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 1981
Filed:
Jun. 15, 1979
Pang T Ho, Mountain View, CA (US);
Michael D Rubin, Saratoga, CA (US);
Ford Aerospace & Communications Corp., Detroit, MI (US);
Abstract
An active microwave amplifier element is hermetically sealed on the opposite side of a dielectric substrate from the side in which input and output signals are transmitted. The active element is mounted on a ground plane and is electrically connected to coplanar waveguide elements which are coplanar with the ground plane. The coplanar waveguide elements are electrically connected to associated microwave strips through the dielectric substrate and said holes are also sealed. A cap having similar coefficient of thermal expansion to the dielectric substrate is mounted on the ground plane to enclose and hermetically seal the active element.