Coupler with lateral extension

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

Reexamination Certificate

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C333S116000

Reexamination Certificate

active

07138887

ABSTRACT:
A coupler is disclosed that includes first and second mutually coupled spirals or loops disposed on opposite sides of a dielectric substrate. The substrate may be formed of one or more layers and the loops may have a number of turns appropriate for a given application. Conductors forming the loops may be opposite each other on the substrate and each loop may include one or more portions on each side of the substrate. Each conductor of the coupler may include an intermediate portion having a width that is more than the width of end portions. An extension may extend from each respective intermediate portion, with the two extensions extending in non-overlapping relationship. In some coupler sections, an extension may be peninsular.

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