Patent attributes
A transmission-line assembly provides a transition between more coupled and less coupled transmission lines. The more coupled transmission lines may be configured as a dual stripline, and the less coupled transmission lines may be configured as separate striplines or a dual stripline with reduced coupling. In an intermediate section, the transmission conductors transition between the more coupled and less coupled sections and at least one transmission conductor bends. A grounded shield conductor is coplanar with and edge-coupled to the one transmission conductor and extends along the bend in the one transmission conductor. The shield conductor is not connected to either of the transmission conductors, and overlaps the other transmission conductor when viewed normal to the planes of the transmission conductors, whereby the shield conductor is broadside coupled to the other transmission conductor. Capacitive coupling between the transmission conductors and the shield conductor reduce capacitive coupling between the transmission conductors.
