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US 6,611,181 B2Granted
Electromagnetic coupler circuit board having at least one angled conductive trace
AssigneeIntel Corporation
InventorsNandu J. Marketkar, John R. Benham, Thomas F. Knight, Jr., Rajeevan Amirtharajah
Life of this patent
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Abstract
An electromagnetic (EM) coupler including a first transmission structure having a first geometry, and a second transmission structure having a second geometry and forming an EM coupler with the first transmission structure, the first and second geometries being selected to reduce sensitivity of EM coupling to relative positions of the first and second transmission structures is disclosed.
Claims18
A method, comprising:
- depositing a conductive trace on a circuit board, the conductive trace including a first transmission structure having a plurality of transmission sections, each transmission section having an angle of deflection relative to an axis parallel to the first transmission structure,
- the angle of deflection being such that, when the first transmission structure is positioned proximate to a second transmission structure to form an electromagnetic coupler, a total capacitance between the first and second transmission structures is maintained relatively constant over a range of relative positions of the first and second transmission structures,
- wherein the first transmission structure includes a zig-zag geometry and the second transmission structure includes a straight geometry, and wherein the first transmission structure dielectrically crosses the second transmission structure at multiple locations due to the angle of deflection.
A method, comprising:
- depositing a conductive trace on a circuit board, the conductive trace including a first transmission structure having a plurality of transmission sections, each transmission section having an angle of deflection relative to an axis parallel to the first transmission structure,
- the angle of deflection being such that, when the first transmission structure is positioned proximate to a second transmission structure to form an electromagnetic coupler, a total capacitance between the first and second transmission structures is maintained relatively constant over a range of relative positions of the first and second transmission structures,
- wherein the first transmission structure comprises at least one differential pair of conductors parallel to each other.
An apparatus, comprising:
- a circuit board;
- and
- a conductive trace disposed on the circuit board, the conductive trace including a first transmission structure having a plurality of transmission sections, each transmission section having an angle of deflection relative to an axis parallel to the first transmission structure,
- wherein the angle is selected such that, when the first transmission structure is positioned proximate to a second transmission structure to form an electromagnetic coupler, a total capacitance between the first and second transmission structures is maintained relatively constant over a range of relative positions of the first and second transmission structures.
- wherein the first transmission structure comprises at least one differential pair of conductors parallel to each other.
2 more elements
An apparatus, comprising:
- a circuit board;
- and
- a conductive trace disposed on the circuit board, the conductive trace including a first transmission structure having a plurality of transmission sections, each transmission section having an angle of deflection relative to an axis parallel to the first transmission structure,
- wherein the angle is selected such that, when the first transmission structure is positioned proximate to a second transmission structure to form an electromagnetic coupler, a total capacitance between the first and second transmission structures is maintained relatively constant over a range of relative positions of the first and second transmission structures,
- wherein the first transmission structure includes a zig-zag geometry and the second transmission structure includes a straight geometry, and wherein the first transmission structure dielectrically crosses the second transmission structure at multiple locations due to the angle of deflection.
2 more elements
Dependencies are inferred from the claim text.