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:
Apr. 02, 2013
Filed:
Jun. 30, 2010
Toru Jibu, Osaka, JP;
Shoji Okamoto, Osaka, JP;
Yosuke Hamaoka, Osaka, JP;
Hiroyuki Nakamura, Osaka, JP;
Toru Jibu, Osaka, JP;
Shoji Okamoto, Osaka, JP;
Yosuke Hamaoka, Osaka, JP;
Hiroyuki Nakamura, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A SAW filter includes a piezoelectric body, an IDT electrode on the piezoelectric body, and signal wiring electrically connected to the IDT electrode. The signal wiring has a thickness not less than a skin depth specified based on the frequency of a signal passing through the signal wiring and the electrical conductivity of the signal wiring. As a result, the signal wiring has low propagation loss of the signal passing through it, so that the SAW filter has excellent transmission characteristics.