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:
Sep. 06, 2011
Filed:
Mar. 02, 2007
Taras Kushta, Tokyo, JP;
Kaoru Narita, Tokyo, JP;
Tomoyuki Kaneko, Tokyo, JP;
Shin-ichi Ogou, Kanagawa, JP;
Taras Kushta, Tokyo, JP;
Kaoru Narita, Tokyo, JP;
Tomoyuki Kaneko, Tokyo, JP;
Shin-ichi Ogou, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
NEC Corporation, Tokyo, JP;
Abstract
According to one embodiment, a broadband transition to joint a via structure and a planar transmission line in a multilayer substrate is formed as an intermediate connection between the signal via pad and the planar transmission line disposed at the same conductor layer. The transverse dimensions of the transition are equal to the via pad diameter at the one end and strip width at another end; The length of the transition can be equal to the characteristic dimensions of the clearance hole in the direction of the planar transmission line or defined as providing the minimal excess inductive reactance in time-domain according to numerical diagrams obtained by three-dimensional full-wave simulations.