Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2005-07-12
2005-07-12
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S101000, C333S109000, C333S185000
Reexamination Certificate
active
06917259
ABSTRACT:
A high frequency module substrate device used in a high frequency module apparatus, which is adapted for switching pass-frequency characteristic of band-pass filter by switching and is adapted so that optimum band-pass filter characteristic is obtained in all pass-frequency bands, wherein a thin film capacitor element (18) is constituted between a base substrate (2) in which the uppermost layer is flattened with organic substrate being as core substrates (5), (6) to constitute a buildup formation surface (16) and a high frequency circuit unit (3) of lumped parameter design formed on the buildup formation surface in a laminated manner to carry out switching of load of parallel capacity with respect to a coupler (11) having frequency characteristic of λ/4 which has been caused to undergo distributed parameter design at the base substrate portion side of the thin film capacitor through switch means (4).
REFERENCES:
patent: 5103293 (1992-04-01), Bonafino et al.
patent: 5526172 (1996-06-01), Kanack
patent: 5742215 (1998-04-01), Park
patent: 07-147503 (1995-06-01), None
patent: 09-116305 (1997-05-01), None
patent: 2000-031738 (2000-01-01), None
patent: 2001-084884 (2001-03-01), None
Pascal Robert
Sonnenschein Nath & Rosenthal LLP
Takaoka Dean
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