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:
Jan. 10, 2017
Filed:
Oct. 09, 2014
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventor:
Kazushi Watanabe, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Lt., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H03H 9/00 (2006.01); H03H 9/05 (2006.01); H03H 1/00 (2006.01);
U.S. Cl.
CPC ...
H03H 9/6423 (2013.01); H03H 9/0009 (2013.01); H03H 9/0557 (2013.01); H03H 9/64 (2013.01); H03H 9/6483 (2013.01); H01L 2224/16225 (2013.01); H03H 9/059 (2013.01); H03H 9/0514 (2013.01); H03H 2001/0085 (2013.01);
Abstract
A ladder surface acoustic wave filter includes a series arm connecting an input terminal and an output terminal, at least one parallel arm connecting the series arm and a ground terminal, at least one series arm resonator provided in the series arm, and at least two parallel arm resonators provided in at least one parallel arm and connected to each other in series. In the ladder surface acoustic wave filter, a connection point between at least the two parallel resonators connected to each other in series is grounded through an inductor.