DMS filter with improved matching

Wave transmission lines and networks – Coupling networks – Electromechanical filter

Reexamination Certificate

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Reexamination Certificate

active

07915975

ABSTRACT:
For improving the matching of a DMS track that is connected in series with a reactance element, it is proposed to connect a shunt branch to ground between the DMS track and reactance element parallel to the signal-carrying conductor section, where a capacitive element is arranged in this shunt branch.

REFERENCES:
patent: 4931755 (1990-06-01), Sakamoto et al.
patent: 5558711 (1996-09-01), Sakurai
patent: 5682126 (1997-10-01), Plesski et al.
patent: 6879086 (2005-04-01), Takamine
patent: 6882249 (2005-04-01), Takamine et al.
patent: 6936952 (2005-08-01), Takamine
patent: 6967427 (2005-11-01), Yata
patent: 7190242 (2007-03-01), Takamine
patent: 7388456 (2008-06-01), Furusato et al.
patent: 7623009 (2009-11-01), Kando et al.
patent: 2003/0035557 (2003-02-01), Takamine et al.
patent: 2004/0080385 (2004-04-01), Takamine et al.
patent: 2007/0296521 (2007-12-01), Schmidhammer
patent: 2009/0009263 (2009-01-01), Javid et al.
patent: 695 33 389 (2005-09-01), None
patent: 10 2004 031 397 (2006-01-01), None
patent: 10 2005 010 658 (2006-09-01), None
patent: 1 653 615 (2006-05-01), None
patent: 01-321715 (1989-12-01), None
patent: 06061783 (1994-03-01), None
patent: 08065089 (1996-03-01), None
patent: 2002-064358 (2002-02-01), None
patent: 2002-111443 (2002-04-01), None
patent: 2002-111444 (2002-04-01), None
patent: WO 2005031971 (2005-04-01), None
Morita, T., et al., “Wideband Low Loss Double Mode Saw Filters,” 1992 Ultrasonics Symposium, pp. 95-104, IEEE.
EPCOS Data Sheet B9300, Low-Loss Dual Band Filter for Moibile Communication, SAW Components, May 19, 2005, pp. 1-9, EPCOS AG.
EPCOS Data Sheet B9305, SAW Components, SAW Rx 2in 1 Filter, GSM1800/GSM1900, Oct. 16, 2006, pp. 1-12, EPCOS AG.

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