Device for carrying out the non-contact rotational transmission of high-frequency signals

• US 7,148,773 B2
• Filed: 08/02/2001
• Issued: 12/12/2006
• Est. Priority Date: 08/02/2000
• Status: Expired due to Fees

• Current Assignee: Schleifring Und Apparatebau Gmbh (Wegmann Unternehmens-Holding GmbH & Co. KG)
• Original Assignee: Schleifring Und Apparatebau Gmbh (Wegmann Unternehmens-Holding GmbH & Co. KG)
• Inventors: Lohr, Georg
• Primary Examiner(s): LEE, BENNY T
• Application Number:
  US10/332,081
• Publication Number:
  US 20040051604A1
• Time in Patent Office: 1,958 Days
• Field of Search: 333/256, 333/257, 333/261
• US Class Current: 333/257
• CPC Class Codes: H01P 1/067 the energy being transmitted in only one line located on the axis of rotation

Abstract

An array transmits a wide-band electric signal between at least two components disposed for rotation relative to each other. The components are provided with coupling surfaces that are maintained at a largely constant distance from each other via the rotary movement. The space between the coupling surfaces is predominantly filled with a dielectric material.

Claims

1. Array for wide-band electric signal transmission between at least two components disposed for movement relative to each other, said at least two components having coupling surfaces providing a sliding contact bearing and being maintained at a substantially constant distance from each other via the movement, wherein the space between said coupling surfaces is substantially filled with a dielectric material, being substantially gas, wherein said components are provided with coupling surfaces that are an air bearing maintained at a very small distance by the gas.

2. Array for wide-band electric signal transmission between at least two components disposed for movement relative to each other, said at least two components having coupling surfaces providing a sliding contact bearing and being maintained at a substantially constant distance from each other via the movement, wherein the space between said coupling surfaces is substantially filled with a dielectric material being substantially a liquid, wherein said at least two components are maintained at a very small distance by the liquid comprising an oil film.

3. Array for wide-band electric signal transmission between at least two components disposed for movement relative to each other, said at least two components having coupling surfaces providing a sliding contact bearing and being maintained at a substantially constant distance from each other via the movement, wherein the space between said coupling surfaces is substantially filled with a solid dielectric material fixed to only one of said coupling surfaces to provide capacitive coupling of an electrical signal transmission between the coupling surfaces.

4. Array according to claim 3, wherein the array is configured as a circular waveguide for transmission of electromagnetic waves.

5. Array according to claim 3, wherein the array is configured as a coaxial conductor system for transmission of electromagnetic waves.

6. Array according to claim 3, wherein said dielectric material is configured to serve for electric coupling and simultaneously as a mechanical guide for said coupling surfaces supported for movement relative to each other.

7. Array according to claim 3, wherein said relative movement of said at least two components is rotational, and said coupling surfaces are symmetrically mounted relative to an axis of rotation of the array.

8. Array according to claim 7, wherein said coupling surfaces are disposed radially with respect to the axis of rotation.

9. Array according to claim 7, wherein said coupling surfaces are disposed axially with respect to the axis of rotation.

10. Array according to claim 3, wherein said coupling surfaces extend in at least one of radial and axial directions.

11. Array according to claim 3, wherein a plurality of transmission systems consisting of said coupling surfaces and said dielectric material form a single unit.

12. Array according to claim 3, wherein said dielectric material is a material having desired sliding characteristics.

13. Array according to claim 3, wherein said coupling surfaces are configured for multi-channel signal transmission.

14. Array according to claim 3, wherein said dielectric material is impregnated with a proportion of a lubricant sufficient for reducing mechanical friction.

15. Array for wide-band electric signal transmission between at least two components disposed for movement relative to each other, said two components having coupling surfaces providing a sliding contact bearing and being maintained at a substantially constant distance from each other via the movement, wherein the space between said coupling surfaces is substantially filled with a dielectric material comprising a thin ceramic layer applied on at least one of said coupling surfaces.

16. Array according to claim 15, wherein said dielectric material is a thin layer applied by electroplating on a surface of at least one coupling surface.