Surface acoustic wave filter and surface acoustic wave duplexer

Details Surface acoustic wave filter and surface acoustic wave duplexer Surface acoustic wave filter and surface acoustic wave duplexer

2011-03-01

2011-03-01

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S193000, C333S195000

Reexamination Certificate

active

07898360

ABSTRACT:
A surface acoustic wave filter which includes a first terminal at the input side, a second terminal at the output side, a plurality of resonators electrically connected between the first and the second terminals, and a piezoelectric substrate provided on the upper surfaces of first and second terminals and the plurality of resonators. The piezoelectric substrate is made to have a thickness that is not thicker than 0.2 mm. The filtering characteristic of surface acoustic wave filter can be improved by taking advantage of the above structure.

REFERENCES:
patent: 6710682 (2004-03-01), Onishi et al.
patent: 7030716 (2006-04-01), Tsutsumi et al.
patent: 7148769 (2006-12-01), Takano
patent: 7295089 (2007-11-01), Shibahara et al.
patent: 7459992 (2008-12-01), Matsuda et al.
patent: 2004/0036381 (2004-02-01), Abbott et al.
patent: 2005/0285700 (2005-12-01), Koga et al.
patent: 2006/0044081 (2006-03-01), Tanaka et al.
patent: 2007/0013458 (2007-01-01), Itou et al.
patent: 2007/0120626 (2007-05-01), Makibuchi et al.
patent: 9-074329 (1997-03-01), None
patent: 10-022763 (1998-01-01), None
Kadota et al.; “Very Small-Sized Resonator IF Filter Using Shear Horizontal Wave on Quartz Substrate”; 2001 IEEE Ultrasonics Symposium, vol. 1, pp. 65-68, Oct. 7-10, 2001.

Affiliated with

Also associated with

Rating

Surface acoustic wave filter and surface acoustic wave duplexer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface acoustic wave filter and surface acoustic wave duplexer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface acoustic wave filter and surface acoustic wave duplexer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2777496