Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2004-04-20
2009-10-20
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S117000
Reexamination Certificate
active
07605676
ABSTRACT:
The invention relates to a directional coupler comprising coupled lines, and a method for achieving coupling in a directional coupler under compensation conditions. The directional coupler comprises coupled lines (8, 9), including a first line (8) and a second line (9), and at least one ground plane (10, 11, 13). At least one of the ground planes is a tuning ground plane (10, 11, 13), and a distance (14, 25), between the first(8) and the second (9) line, and each distance (15, 17, 26, 27), between the first line (8) and the respective tuning ground plane (10, 11, 13), are adapted so as to contribute to a desired coupling level under compensation conditions.
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Dabrowski Jurek
Sawicki Andrzej
Lee Benny
Nixon & Vanderhye P.C.
Telefonaktiebolaget LM Ericsson (publ)
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