Patent ID: 8040200
Filing Date: 2011-10-18
Classification: H01P

Abstract:
1. A differential transmission line comprising: a substrate having a first surface and a second surface that are substantially parallel to each other, a first grounding conductor disposed on the second surface of the substrate; a dielectric layer disposed on the first grounding conductor; a second grounding conductor disposed on the dielectric layer; and first and the second signal conductors disposed so as to be parallel to each other on the first surface of the substrate; wherein the first signal conductor and the first and second grounding conductors constitute a first transmission line, and the second signal conductor and the first and second grounding conductors constitute a second transmission line; wherein a slot is disposed in the first grounding conductor so as to three-dimensionally intersect with the first and second signal conductors and to be substantially orthogonal to a longitudinal direction of the first and second signal conductors; wherein a connecting conductor connects the first grounding conductor with the second grounding conductor; wherein the slot is disposed so as to penetrate the first grounding conductor in a thickness direction of the first grounding conductor; and wherein the first grounding conductor is divided into two parts so as to be completely separated apart by the slot.