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:
Feb. 13, 2007
Filed:
Aug. 16, 2002
Naoki Matsushima, Yokohama, JP;
Kazumi Kawamoto, Yokohama, JP;
Hideyuki Kuwano, Yokohama, JP;
Yoshiaki Niwa, Yokohama, JP;
Tetsuya Kato, Fujisawa, JP;
Naoki Matsushima, Yokohama, JP;
Kazumi Kawamoto, Yokohama, JP;
Hideyuki Kuwano, Yokohama, JP;
Yoshiaki Niwa, Yokohama, JP;
Tetsuya Kato, Fujisawa, JP;
OpNext Japan, Inc., Yokohama, JP;
Abstract
A transmission line with a bending portion is provided, which line comprises any one of a coplanar line, another coplanar waveguide line formed on the dielectric substrate under which a ground layer is provided and a coplanar strip line. A chamfered portion is provided on the outer angular portion of the bending portion of the signal wiring conductor and a triangular conductor is disposed to an inner angular portion thereof. Given that length of the chamfered portion is defined as a, and length of the wiring edge side of the triangular conductor is defined as b and width of the signal wiring conductor is defined as c, it is arranged such that a is greater than b+c×square root of 2. Thereby, a transmission line or an optical module of smaller reflection loss at the bending portion thereof and of improved high-frequency characteristics is provided.