Surface acoustic wave apparatus

Details Surface acoustic wave apparatus Surface acoustic wave apparatus

2006-05-30

2006-05-30

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S193000, C310S31300R

Reexamination Certificate

active

07053733

ABSTRACT:
A surface acoustic wave apparatus includes a piezoelectric substrate mounting a surface acoustic wave filter having a plurality of comb-like electrode sections, and another surface acoustic wave filter also having a plurality of comb-like electrode sections, in a manner such that a balun function is obtained. Further, a wiring pattern is provided on the piezoelectric substrate for a connecting reference terminal side electrode of a comb-like electrode section with a reference terminal side electrode of another comb-like electrode section. Moreover, another wiring pattern is provided on the piezoelectric substrate for connecting a reference terminal side electrode of a further comb-like electrode section with a reference terminal side electrode of a still further comb-like electrode section.

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patent: WO 01/71911 (2001-09-01), None

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