Transmitting and/or receiving device for installation in elastic structures

• US 9,105,982 B2
• Filed: 03/21/2013
• Issued: 08/11/2015
• Est. Priority Date: 09/21/2010
• Status: Active Grant

• Current Assignee: ContiTech Luftfedersysteme GmbH (Continental AG)
• Original Assignee: ContiTech Luftfedersysteme GmbH (Continental AG)
• Inventors: Fleck, Andreas, Reck, Siegfried
• Primary Examiner(s): Ho, Tan
• Application Number:
  US13/848,604
• Publication Number:
  US 20130214991A1
• Time in Patent Office: 873 Days
• Field of Search: 343/873, 343/895
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/2241 used in or for vehicle tyres
• CPC Class Codes: H01Q 11/08 Helical antennas

Abstract

An apparatus transmits and/or receives radio waves in the UHF band and is configured for installation in an elastic structure. The apparatus includes at least one electronic component and an antenna embedded in the elastic structure. The antenna is connected to the electronic component and includes at least one filament configured to be plastically deformable and/or elastically deformable. The filament is helically wound to a predetermined antenna length (L) and defines an antenna winding turns density per cm of the antenna length. The antenna length (L) is between 4 cm and 10 cm and the antenna winding turns density lies in a range of 5 to 15 winding turns per cm of the antenna length.

Claims

1. An apparatus for transmitting and/or receiving radio waves, the apparatus being configured to be embedded in an elastic structure and comprising:

a transponder completely embedded in said elastic structure and in direct contact therewith;

an antenna completely embedded in the elastic structure and in direct contact therewith and connected to said transponder;

said antenna including an electrically conductive filament configured to be at least one of plastically deformable and elastically deformable;

said filament being helically wound to a predetermined antenna length (L) and defining an antenna winding turns density per cm of antenna length;

said antenna length (L) being between 4 cm and 10 cm; and

,

said antenna winding turns density being in the range of 5 to 15 winding turns per cm of antenna length causing an over-proportioned increase in radiation of said antenna within said range.

2. The apparatus of claim 1, wherein said length (L) of said antenna is 5.5 cm and said winding turns density is 13.4 winding turns per cm of antenna length.

3. The apparatus of claim 1, wherein said antenna length (L) is 7.0 cm and said winding turns density is 6.7 winding turns per cm of antenna length.

4. The apparatus of claim 1, wherein:

said filament is an electrically conductive filament; and

,

said winding turns are wound twice in mutually opposing lays.

5. The apparatus of claim 1, wherein said radio waves are in the UHF band.

6. An apparatus for transmitting and/or receiving radio waves, the apparatus being configured for installation in an elastic structure and comprising:

at least one electronic component;

an antenna embedded in the elastic structure and connected to said electronic component;

said antenna including at least one filament configured to be at least one of plastically deformable and elastically deformable;

said filament being helically wound to a predetermined antenna length (L) and defining an antenna winding turns density per cm of antenna length;

said antenna length (L) being between 4 cm and 10 cm;

said antenna winding turns density being in the range of 5 to 15 winding turns per cm of antenna length;

said filament being an electrically conductive filament;

at least one carrier filament; and

,

said electrically conductive filament being wound around said carrier filament.

7. An air spring comprising:

a rolling-lobe flexible member defining an elastomer matrix;

an apparatus configured for at least one of transmitting radio waves and receiving radio waves;

said apparatus including a transponder completely embedded in said elastomer matrix and in direct contact therewith;

said apparatus further including an antenna completely embedded in said elastomer matrix of said rolling-lobe flexible member and said antenna including at least one electrically conductive filament configured to be at least one of elastically deformable and plastically deformable;

said antenna being operatively connected to said transponder; and

,

said filaments being helically wound to a predetermined antenna length (L) in the range of 4.0 to 10.0 cm at a winding turns density of 5 to 15 winding turns per cm of antenna length causing an over-proportioned increase in radiation of said antenna within said range.

8. The air spring of claim 7, wherein said antenna length (L) is 5.5 cm at a winding turns density of 13.4 winding turns per cm of antenna length.

9. The air spring of claim 7, wherein said antenna length (L) is 7.0 cm at a winding turns density of 6.7 winding turns per cm of antenna length.

10. The air spring of claim 7, wherein:

said filament is an electrically conductive filament;

said filament defines a plurality of winding turns; and

,

said winding turns are wound twice in mutually opposing lays.

11. The air spring of claim 7, wherein said radio waves are in the UHF band.

12. An air spring comprising:

an air spring flexible member defining an elastomer matrix;

an apparatus configured for at least one of transmitting radio waves and receiving radio waves;

said apparatus being embedded in said elastomer matrix and including at least one electronic component;

said apparatus having an antenna embedded in said elastomer matrix of said air spring flexible member and said antenna including at least one filament configured to be at least one of elastically deformable and plastically deformable;

said antenna being operatively connected to said electronic component;

said filaments being helically wound to a predetermined antenna length (L) in the range of 4.0 to 10.0 cm at a winding turns density of 5 to 15 winding turns per cm of antenna length;

said filament being an electrically conductive filament;

a carrier filament; and

,

said electrically conductive filament being wound around said carrier filament.