Surface acoustic wave filter and communication apparatus

Details Surface acoustic wave filter and communication apparatus Surface acoustic wave filter and communication apparatus

2007-11-13

2007-11-13

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S195000, C310S31300R

Reexamination Certificate

active

10773818

ABSTRACT:
A surface acoustic wave (SAW) filter includes a piezoelectric substrate. A resin pattern having a permittivity less than that of the piezoelectric substrate and first and second conductor patterns are disposed on the piezoelectric substrate. The first conductor pattern defines two one-terminal-pair SAW resonators and two longitudinally coupled resonator SAW filters. A portion of the second conductor pattern defines wiring traces having different potentials. Portions of the wiring traces facing each other in a plan view are disposed on the resin pattern.

REFERENCES:
patent: 3582540 (1971-06-01), Adler
patent: 3582840 (1971-06-01), De Vries
patent: 4037181 (1977-07-01), Ieki et al.
patent: 4065734 (1977-12-01), Takeno et al.
patent: 5694095 (1997-12-01), Mineyoshi
patent: 5847626 (1998-12-01), Taguchi et al.
patent: 5914646 (1999-06-01), Hashimoto
patent: 6369672 (2002-04-01), Ikada
patent: 6404303 (2002-06-01), Kuroda
patent: 6693501 (2004-02-01), Sawada et al.
patent: 6879086 (2005-04-01), Takamine
patent: 6930570 (2005-08-01), Nakamura et al.
patent: 7046102 (2006-05-01), Nakamura et al.
patent: 7075391 (2006-07-01), Nakamura et al.
patent: 2006/0164184 (2006-07-01), Nakamura et al.
patent: 0 913 935 (1999-05-01), None
patent: 1 079 521 (2001-12-01), None
patent: 52-9389 (1977-01-01), None
patent: 3-16409 (1991-01-01), None
patent: 05-167387 (1993-07-01), None
patent: 05-235684 (1993-09-01), None
patent: 07-030362 (1995-01-01), None
patent: 07-297675 (1995-11-01), None
patent: 11-122071 (1999-04-01), None
patent: 2000-049567 (2000-02-01), None
patent: 2000-138553 (2000-05-01), None
patent: 2000-261344 (2000-09-01), None
patent: 2002-043892 (2002-02-01), None
patent: 2002-290203 (2002-10-01), None
patent: 2003-204243 (2003-07-01), None
patent: 2003-332874 (2003-11-01), None
Official Communication dated Jan. 13, 2006, issued in the corresponding European Patent Application No. 04290489.6-2215.
Official Communication issued in the corresponding Chinese Application No. 2004100055833, mailed on Aug. 25, 2006.
Official communication issued in the counterpart Chinese Application No. 200410005583.3, mailed on May 25, 2007.
Official communication issued in the counterpart Japanese Application No. 2003-406255, mailed on Jul. 17, 2007.

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