Branching filter, branching filter module and radio commnication

Details Branching filter, branching filter module and radio commnication Branching filter, branching filter module and radio commnication

1995-02-08

1996-09-10

Lee, Benny

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333133, 333202, H03H 746

Patent

active

055549608

ABSTRACT:
A high-frequency apparatus usable as a branching filter, branching filter module and/or a radio communication apparatus. The high-frequency apparatus includes a conductor substrate, a first dielectric layer provided on the conductor substrate, a strip conductor provided on the first dielectric layer, and a second dielectric layer provided on the strip conductor and having through holes provided therein. At least one elastic surface-wave element is provided over the second dielectric layer in a position above the strip conductor and is connected to the strip conductor by the through holes.

REFERENCES:
patent: 4426732 (1984-01-01), Mori
patent: 4758922 (1988-07-01), Ishigahi et al.
patent: 4963843 (1990-10-01), Peckham
patent: 5083236 (1992-01-01), Chason et al.
patent: 5202652 (1993-04-01), Tabuchi et al.
patent: 5323127 (1994-06-01), Komazaki et al.
patent: 5438305 (1995-08-01), Hikita et al.

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