Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2006-04-11
2006-04-11
Le, Don (Department: 2819)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S204000
Reexamination Certificate
active
07026885
ABSTRACT:
A coupler includes a first set of ports coupled to a first ring, a second set of ports coupled to a second ring, and a plurality of connecting elements coupled between the first and second rings. The coupler provides low loss insertion and high port isolation and may be used as a standalone coupler or as an elementary device for building Butler matrices of varying configurations.
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Baras Torben
Metz Norbert C
Le Don
Lucent Technologies - Inc.
Mai Lam T.
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