Low profile high speed transmission cable

• US 20060254805A1
• Filed: 05/25/2005
• Published: 11/16/2006
• Est. Priority Date: 05/25/2005
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Springer, Denis D., Scherer, Richard J.
• Application Number:
  US11/137,286
• Publication Number:
  US 20060254805A1
• Time in Patent Office: Days
• US Class Current: 174/129.R
• CPC Class Codes: H01B 11/1808 Construction of the conductors
• CPC Class Codes: H01B 11/203 forming a flat arrangement

Abstract

A low profile transmission cable for high frequency applications includes one or more inner conductors each having a substantially oblong curvilinear cross-section. A dielectric material generally surrounds the one or more inner conductors. A metallic outer shield generally surrounds the dielectric material. An outer jacket envelops the metallic outer shield.

Claims

1. A low profile transmission cable for high frequency applications, the transmission cable comprising:

one or more inner conductors each having a substantially oblong curvilinear cross-section;

a dielectric material generally surrounding the one or more inner conductors;

a metallic outer shield generally surrounding the dielectric material; and

an outer jacket enveloping the metallic outer shield;

wherein the major axes of the substantially oblong curvilinear cross-section of the one or more inner conductors lie in a single plane.

2. The transmission cable of claim 1, wherein the dielectric material comprises a unitary sheath extruded over the one or more inner conductors.

3. The transmission cable of claim 1, wherein the dielectric material is wrapped around the one or more inner conductors.

4. The transmission cable of claim 1, wherein the at least one of the one or more inner conductors comprises a unitary filament.

5. The transmission cable of claim 1, wherein at least one of the one or more inner conductors comprises a plurality of electrically engaged conductive strands.

6. The transmission cable of claim 1, wherein an inner surface of the metallic outer shield is generally equidistant from the one or more inner conductors.

7. The transmission cable of claim 1, wherein the metallic outer shield comprises a plurality of braided wires.

8. The transmission cable of claim 1, wherein the metallic outer shield comprises a foil layer.

9. The transmission cable of claim 1, wherein the metallic outer shield comprises a plurality of braided wires and a foil layer.

10. The transmission cable of claim 1, and further comprising:

a drain wire in electrical contact with the metallic outer shield.

11. (canceled)

12. A low profile transmission cable suitable for transmission of signals in excess of 100 MHz, the transmission cable comprising:

a first conductor having a first substantially oblong cross-section;

a first dielectric sheath generally surrounding the first conductor;

a metallic outer shield generally surrounding the dielectric sheath; and

an outer jacket enveloping the metallic outer shield.

13. The transmission cable of claim 12, wherein the metallic outer shield generally surrounds the dielectric sheath such that an inner surface of the metallic outer shield is generally equidistant from the first conductor.

14. The transmission cable of claim 12, and further comprising:

a second conductor having a second substantially oblong cross-section; and

a second dielectric sheath generally surrounding the second conductor;

wherein the first conductor and the second conductor are positioned such that a major axis of the first substantially oblong cross-section is generally coplanar with a major axis of the second substantially oblong cross-section.

15. The transmission cable of claim 14, wherein the first dielectric sheath and the second dielectric sheath are integral.

16. The transmission cable of claim 15, wherein the first dielectric sheath and the second dielectric sheath are extruded over the first and second conductors.

17. The transmission cable of claim 15, wherein the first dielectric sheath and the second dielectric sheath are formed by wrapping a dielectric material around the first and second conductors.

19. The transmission cable of claim 14, wherein the metallic outer shield generally surrounds the first dielectric sheath and the second dielectric sheath.

20. The transmission cable of claim 14, and further comprising:

a drain wire in electrical contact with the metallic outer shield.

18. (canceled)