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

Wave transmission lines and networks – Plural channel systems – Having branched circuits

Reexamination Certificate

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C333S193000, C333S025000

Reexamination Certificate

active

07012480

ABSTRACT:
A balanced type filter includes at least one balanced type terminal. At least one predetermined reactance element is connected between the balanced type terminal and another terminal. A parallel resonance circuit is formed by parasitic components existing between the balanced type terminal and the other terminal, and the reactance element. The other terminal is of balanced type or unbalanced type.

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