Signal transmission structure
AssigneeVIA Technologies, Inc.
InventorJimmy Hsu
Life of this patent
Estimating the term…
Abstract
A signal transmission structure includes at least one reference plane with a non-reference area, and a signal line with a salient protruding over the edge of the signal line and the salient is corresponding to the position of the non-reference area. When a signal passes through the signal line, the effect of the parasitic capacitance between the salient and the reference plane can improve the characteristic impedance mismatch. Therefore, the signal transmission structure can reduce the insertion loss and increase the reduction of the return loss in order to locally compensate the impedance mismatch.
Claims9
A signal transmission structure for a circuit board, comprising:
- a reference plane having a non-reference area;
- and
- a signal line on a first side of said reference plane, wherein said signal line having at least a salient positioning corresponding to said non-reference area and protruding from a lateral side of said signal line, wherein said reference plane and said signal line are co-planar, and wherein said reference plane has an opening, said opening being on a lateral side of said reference plane that adjacent to said signal line forming said non-reference area, said salient extending into said opening forming a distance in between said salient and said reference plane.
A signal transmission structure comprising:
- a reference plane having an opening;
- and
- a signal line having a wider width region, wherein said wider width region including a salient for increasing a parasitic capacitance when said signal line protruding into opening, wherein said reference plane and said signal line are co-planar, and wherein said reference plane has an opening, said opening being on a lateral side of said reference plane that adjacent to said signal line forming said non-reference area, said salient extending into said opening forming a distance in between said salient and said reference plane.
Dependencies are inferred from the claim text.