Surface acoustic wave filter device

Details Surface acoustic wave filter device Surface acoustic wave filter device

2005-07-19

2005-07-19

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S193000

Reexamination Certificate

active

06919777

ABSTRACT:
A surface acoustic wave filter device includes a surface acoustic wave filter element having a ladder type circuit electrically connected and mechanically fixed to a package by a face down mounting method. A micro-strip line connected to series arm resonator and/or a parallel arm resonator is provided inside the package, whereby excellent filter characteristics are provided by the addition of the inductance component thereof.

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English language translation of Abstract of JP 5-183380, Jul. 1993.
English language translation of Abstract of JP 2001-160731, Jun. 2001.

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