Wave transmission lines and networks – Coupling networks – Electromechanical filter
Reexamination Certificate
2011-08-02
2011-08-02
Summons, Barbara (Department: 2817)
Wave transmission lines and networks
Coupling networks
Electromechanical filter
C310S31300R, C333S193000
Reexamination Certificate
active
07990234
ABSTRACT:
The object of the present invention is to provide an elastic wave filter capable of suppressing deterioration of a pass band and realizing to downsize. In the elastic wave filter of the present invention provided with a circuit, to which elastic wave resonators of a first series arm, a second series arm and a parallel wave are connected, the first series arm and one out of the second series arm and the parallel arm are arranged in the lateral direction in a row to be adjacent to each other, and the other out of the second series arm and the parallel arm is disposed on the rear side of the row, and prescribed bus bars in the first series arm, the second series arm and the parallel arm are arranged on the common connection point side.
REFERENCES:
patent: 4166258 (1979-08-01), Tseng
patent: 5486800 (1996-01-01), Davenport
patent: 5632909 (1997-05-01), Allen et al.
patent: 5638036 (1997-06-01), Penunuri et al.
patent: 5682126 (1997-10-01), Plesski et al.
patent: 7414494 (2008-08-01), Nakazawa et al.
patent: 7482895 (2009-01-01), Igaki et al.
patent: 2005/0206272 (2005-09-01), Inoue et al.
patent: 2005/0212620 (2005-09-01), Bauer et al.
patent: 8-265099 (1996-10-01), None
patent: 9-232908 (1997-09-01), None
patent: 9-270663 (1997-10-01), None
patent: 10-303691 (1998-11-01), None
patent: 2000-31780 (2000-01-01), None
patent: WO 2005/013481 (2005-02-01), None
Jordan and Hamburg LLP
Nihon Dempa Kogyo Co. Ltd.
Summons Barbara
LandOfFree
Elastic wave filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Elastic wave filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elastic wave filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2700226