Surface acoustic wave filter, balanced type circuit, and...

Details Surface acoustic wave filter, balanced type circuit, and... Surface acoustic wave filter, balanced type circuit, and...

2006-05-16

2006-05-16

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S195000

Reexamination Certificate

active

07046102

ABSTRACT:
A surface acoustic wave filter including a piezoelectric substrate, IDT electrodes which are formed on the piezoelectric substrate and are connected to balanced type terminals. Further, IDT electrodes are formed on the piezoelectric substrate and are connected to an unbalanced type terminal, connection electrodes of connecting the IDT electrodes, the IDT electrodes IDT electrodes to the balanced type terminals or the unbalanced type terminal, and a dielectric thin film formed between the piezoelectric substrate and the IDT electrodes, the IDT electrodes, the connection electrodes.

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