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US 9,867,294 B2Granted
Multi-width waveguides
AssigneeCiena Corporation
InventorsNasser Ghassemi, Hugues Tournier
Life of this patent
Estimating the term…
Abstract
A waveguide. The waveguide may include a first waveguide region that includes a signal trace with a first width. The waveguide may further include a second waveguide region that includes the signal trace with a second width. The first width may be different from the second width. The signal trace may be configured to transmit an electrical signal. The signal trace with the second width may be configured to couple with an integrated circuit.
Claims11
A waveguide, comprising:
- a first waveguide region comprising a first portion of a signal trace disposed on a continuous surface of a single planar substrate, wherein the first portion comprises a first width;
- and a second waveguide region comprising a second portion of the signal trace disposed on the continuous surface of the single planar substrate, wherein the second portion comprises a second width, wherein the first width is different from the second width, wherein the signal trace is configured to transmit an electrical signal along a direction perpendicular to the first width and the second width, and wherein the signal trace with the second width is configured to couple with an integrated circuit, wherein the first waveguide region further comprises a first portion of the single planar substrate comprising a first thickness and a first ground plane disposed underneath the first portion and opposite the signal trace, wherein the second waveguide region further comprises a second portion of the single planar substrate comprising a second thickness and a second ground plane disposed underneath the second portion and opposite the signal trace, and wherein the first thickness exceeds the second thickness.
A system for providing an electrical transmission line, comprising:
- a waveguide comprising a signal trace disposed on a continuous surface of a single planar substrate, a first waveguide region, and a second waveguide region, wherein the first waveguide region comprises a first portion of the signal trace with a first width, wherein the second waveguide region comprises a second portion of the signal trace with a second width, and wherein the first width is different from the second width;
- and an integrated circuit coupled to the signal trace with the second width, wherein the signal trace is configured to transmit, along a direction perpendicular to the first width and the second width, an electrical signal to the integrated circuit, wherein the first waveguide region further comprises a first portion of the single planar substrate comprising a first thickness and a first ground plane disposed underneath the first portion and opposite the signal trace, wherein the second waveguide region further comprises a second portion of the single planar substrate comprising a second thickness and a second ground plane disposed underneath the second portion and opposite the signal trace, and wherein the first thickness exceeds the second thickness.
Dependencies are inferred from the claim text.