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:
Jul. 28, 2009
Filed:
Jan. 05, 2005
Brian A. Floyd, Cortland Manor, NY (US);
Ullrich R. Pfeiffer, Carmel, NY (US);
Scott K. Reynods, Granite Springs, NY (US);
Brian A. Floyd, Cortland Manor, NY (US);
Ullrich R. Pfeiffer, Carmel, NY (US);
Scott K. Reynods, Granite Springs, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Shielded circuit pad is provided where the parasitic capacitance is tuned out by the inclusion of a shunt transmission line stub which reduces the substrate induced loss in millimeter-wave applications. The circuit pad is located on the substrate, with a shield located beneath the circuit pad, and the shunt transmission line stub attached to the circuit pad. Accordingly, controlled impedance is obtained for millimeter-wave applications. The spacing between the circuit pad and the shield may then be minimized.