Branching filter package

Wave transmission lines and networks – Plural channel systems – Having branched circuits

Reexamination Certificate

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Details

C333S193000, C333S195000, C333S196000

Reexamination Certificate

active

06937113

ABSTRACT:
A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.

REFERENCES:
patent: 5365209 (1994-11-01), Ito et al.
patent: 5654680 (1997-08-01), Kwan et al.
patent: 5666091 (1997-09-01), Hikita et al.
patent: 5905418 (1999-05-01), Ehara et al.
patent: 6057744 (2000-05-01), Ikada
patent: 6150900 (2000-11-01), Kadota et al.
patent: 6236291 (2001-05-01), Sonoda et al.
patent: 6650205 (2003-11-01), Goetz et al.

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