Tapered three-wire line vertical connections
AssigneeHughes Electronics Corporation
InventorRick Sturdivant
Life of this patent
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Abstract
An electrical connection is provided between a 3-wire transmission line buried in a dielectric substrate and corresponding first, second and third conductive pads formed on a substrate surface. The 3-wire line includes first, second and third wires having a wire cross-sectional dimension. A tapered section connects each wire of the 3-wire line to a corresponding pad. Each tapered section increases in cross-sectional dimension from a first end connected to an end of the wire and a second end connected to a pad. The tapered sections provide a smooth transition of electromagnetic fields between the 3-wire line and the pads.
Claims16
An electrical rf connection between an rf 3-wire transmission line buried in a dielectric substrate and corresponding conductive pads formed on a substrate surface, the 3-wire line including first, second and third wires having a wire cross-sectional dimension, including for each wire of the 3-wire line a tapered section connecting the wire to a corresponding pad, each tapered section changing in cross-sectional dimension from a first dimension at a first end connected to an end of the wire and a second dimension at a second end connected to a pad, wherein the tapered sections provide a smooth transition of electromagnetic fields between said 3-wire line and said pads.
An rf signal connection circuit, comprising:
- a dielectric substrate having a substrate surface;
- an rf 3-wire transmission line buried in said dielectric substrate, said transmission line comprising a center wire and first and second outer wires, said center wire and said outer wires in parallel alignment and extending orthogonally to said substrate surface and having a wire cross-sectional dimension;
- first, second and third conductive pads formed on said substrate surface;
- and
- first, second and third tapered wire sections respectively connecting a wire to a corresponding pad, each tapered section changing in cross-sectional dimension from a first dimension at a first end connected to an end of the wire and a second dimension at a second end connected to a pad, wherein the tapered sections provide a smooth transition of electromagnetic fields between said 3-wire line and said pads.
Dependencies are inferred from the claim text.