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. 30, 2008
Filed:
Oct. 31, 2007
Hiroshi Kanno, Osaka, JP;
Kazuyuki Sakiyama, Osaka, JP;
Ushio Sangawa, Nara, JP;
Tomoyasu Fujishima, Osaka, JP;
Hiroshi Kanno, Osaka, JP;
Kazuyuki Sakiyama, Osaka, JP;
Ushio Sangawa, Nara, JP;
Tomoyasu Fujishima, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A differential transmission line includes: a substrate; a ground conductor layer; and a first and a second signal conductor disposed in parallel to each other on the substrate. The first signal conductor and the ground conductor layer compose a first transmission line, whereas the second signal conductor and the ground conductor layer compose a second transmission line. The first transmission line and the second transmission line compose a differential transmission line. The differential transmission line includes a curved region, with a straight region being connected to each end of the curved region. In the ground conductor layer in the curved region, a plurality of slots orthogonal to a local transmission direction of signals in the curved region are formed, and the slots are connected to one another on the inner side of the curvature.