Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2006-11-21
2006-11-21
Takaoka, Dean (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
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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Takaoka Dean
Werlatone, Inc.
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