Antenna duplexer

Details Antenna duplexer Antenna duplexer

2007-02-20

2007-02-20

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S133000, C333S129000

Reexamination Certificate

active

10992644

ABSTRACT:
The present invention provides an antenna duplexer comprising a package having a plurality of ceramic layers superposed, and a transmitting filter and a receiving filter which are mounted on a surface of the package. A phase-matching strip line is formed on a surface of one ceramic layer. The package has grounding layers formed respectively on surfaces of upper and lower ceramic layers with the phase-matching strip line interposed therebetween. A plurality of via holes are formed around the phase-matching strip line for connecting the two grounding layers to each other.

REFERENCES:
patent: 6351194 (2002-02-01), Takahashi et al.
patent: 6781479 (2004-08-01), Ikada et al.
patent: 6919778 (2005-07-01), Iwamoto et al.
patent: 2002/0109561 (2002-08-01), Iwamoto et al.
patent: 2005/0206477 (2005-09-01), Cheema et al.
patent: 6-97761 (1994-04-01), None
patent: 11-340781 (1999-12-01), None
patent: 2000-307383 (2000-11-01), None
patent: 2003-298462 (2003-10-01), None

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