HF COAXIAL CABLE WITH ANGULAR PLUG CONNECTION, AND A METHOD FOR PRODUCING SAME

• US 20150236458A1
• Filed: 07/19/2013
• Published: 08/20/2015
• Est. Priority Date: 07/20/2012
• Status: Active Grant

• Current Assignee: Spinner GmbH
• Original Assignee: Spinner GmbH
• Inventors: Zimmerhaeckel, Bernd, Fischer, Ingolf, Mutze, Falk
• Granted Patent: US 9,748,711 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/545 Elbows
• CPC Class Codes: H01R 24/564 Corrugated cables
• CPC Class Codes: Y10T 29/49169 Assembling electrical component directly to terminal or elongated conductor
• CPC Class Codes: Y10T 29/49174 Assembling terminal to elongated conductor

Abstract

The invention relates to an HF coaxial cable that comprises a cable inner conductor and a cable outer conductor, as well as an angular plug connection at at least one of its two cable ends. A method is also described for producing same.

The invention is characterised in that said HF coaxial cable is designed as a conventional corrugated sheath cable comprising a cable outer conductor, in the form of a metal corrugated tube, to which a line impedance Z_k and a minimum bending radius r_k,min are allocated; in that at the at least one cable end, said cable inner conductor is joined to an inner conductor of a straight plug connector and the cable outer conductor is joined to an outer conductor of the straight plug connector; in that said corrugated sheath cable has, directly or indirectly following the straight plug connector, a bend that has a bending radius r_α, where 0.2 r_k,min≦r_α≦0.9 r_k,min, which alters the line impedance Z_k by a maximum of 1 ohm; and in that the bend with the bending radius r_α is produced by cold forming said corrugated sheath cable with the introduction of bending forces and tensile forces directed along said corrugated sheath cable.

Claims

1-15. -15. (canceled)

16. An HF coaxial cable comprising a cable inner conductor, a cable outer conductor and an angular plug connection located at at least one of two cable ends;

and wherein

the HF coaxial cable includes a corrugated cable comprising an outer metal corrugated conductive tube having a line impedance Z_k and a minimum bending radius r_k,min;

and

the at least one of two cable ends and the cable inner conductor are joined to an inner conductor of a straight plug connector and the cable outer conductor is joined with an outer conductor of the straight plug connector; and

the corrugated sheath cable contacts or is spaced from the straight plug connector and has a bend having a bending radius r_α

, where 0.2 r_k,min≦

r_α

≦

0.9 r_k,min, which alters the line impedance Z_k to a maximum of 1 ohm.

17. The HF coaxial cable according to claim 16, wherein:

the corrugated cable has a return loss which is changed by a maximum of 2% by the bending radius r_α

.

18. The HF coaxial cable according to claim 16, wherein:

the cable outer conductor has an electrical diameter equal to half a sum of a maximum diameter and a minimum diameter of the cable outer conductor, and the electrical diameter deviates at the bending radius r_α

by less than 10% from an electrical diameter of a region of the corrugated cable spaced from the bend.

19. The HF coaxial cable according to claim 17, wherein:

the cable outer conductor has an electrical diameter equal to half a sum of a maximum diameter and a minimum diameter of the cable outer conductor, and the electrical diameter deviates at the bending radius r_α

by less than 10% from an electrical diameter of a region of the corrugated cable spaced from the bend.

20. The HF coaxial cable according to claim 16, wherein:

the corrugated cable has a diameter of one of ⅛

″

, ¼

″

, ⅜

″

, ½

″ and

⅝

″

.

21. The HF coaxial cable according to claim 17, wherein:

the corrugated cable has a diameter of one of ⅛

″

, ¼

″

, ⅜

″

, ½

″ and

⅝

″

.

22. The HF coaxial cable according to claim 18, wherein:

the corrugated cable has a diameter of one of ⅛

″

, ¼

″

, ⅜

″

, ½

″ and

⅝

″

.

23. The HF coaxial cable according to claim 16, wherein:

the bend of the corrugated cable subtends an angular β

, such that 85°

≦

β

≦

95°

, in the bending radius r_α

.

24. The HF coaxial cable according to claim 17, wherein:

the bend of the corrugated cable subtends an angular β

, such that 85°

≦

β

≦

95°

, in the bending radius r_α

.

25. The HF coaxial cable according to claim 18, wherein:

the bend of the corrugated cable subtends an angular β

, such that 85°

≦

β

≦

95°

, in the bending radius r_α

.

26. The HF coaxial cable according to claim 20, wherein:

the bend of the corrugated cable subtends an angular β

, such that 85°

≦

β

≦

95°

, in the bending radius r_α

.

27. The HF coaxial cable according to claim 16, wherein

r_α

ranges between 5 mm and 50 mm as a function of cable diameter, for a corrugated cable with a nominal diameter of one of ⅛

″

, ¼

″

, ⅜

″

, ½

″ and

⅝

″

.

28. The HF coaxial cable according to claim 17, wherein

r_α

ranges between 5 mm and 50 mm as a function of cable diameter, for a corrugated cable with a nominal diameter of one of ⅛

″

, ¼

″

, ⅜

″

, ½

″ and

⅝

″

.

29. The HF coaxial cable according to claim 18, wherein

r_α

ranges between 5 mm and 50 mm as a function of cable diameter, for a corrugated cable with a nominal diameter of one of ⅛

″

, ¼

″

, ⅜

″

, ½

″ and

⅝

″

.

30. The HF coaxial cable according to claim 20, wherein

r_α

ranges between 5 mm and 50 mm as a function of cable diameter, for a corrugated cable with a nominal diameter of one of ⅛

″

, ¼

″

, ⅜

″

, ½

″ and

⅝

″

.

31. The HF coaxial cable according to claim 23, wherein:

r_α

ranges between 5 mm and 50 mm as a function of cable diameter, for a corrugated cable with a nominal diameter of one of ⅛

″

, ¼

″

, ⅜

″

, ½

″ and

⅝

″

.

32. The HF coaxial cable according to claim 16, wherein:

a radius of the bend is within a range of 0.4 r_k,min≦

r_α

≦

0.6 r_k,min.

33. The HF coaxial cable according to claim 17, wherein:

a radius of the bend is within a range of 0.4 r_k,min≦

r_α

≦

0.6 r_k,min.

34. The HF coaxial cable according to claim 18, wherein:

a radius of the bend is within a range of 0.4 r_k,min≦

r_α

≦

0.6 r_k,min.

35. The HF coaxial cable according to claim 20, wherein:

a radius of the bend is within a range of 0.4 r_k,min≦

r_α

≦

0.6 r_k,min.

36. The HF coaxial cable according to claim 23, wherein:

a radius of the bend is within a range of 0.4 r_k,min≦

r_α

≦

0.6 r_k,min.

37. The HF coaxial cable according to claim 27, wherein:

a radius of the bend is within a range of 0.4 r_k,min≦

r_α

≦

0.6 r_k,min.

38. A method for producing an angular plug connection on a cable end of a HF coaxial cable including a cable inner conductor and a cable outer conductor, comprising:

providing a straight HF corrugated cable including the cable outer conductor comprising a metal corrugated tube which centrally surrounds the cable inner conductor and is embedded in a dielectric, has a line impedance Z_k and has a minimum bending radius r_k,min;

preparing the cable end by trimming the HF corrugated cable;

connecting a straight plug connector to the prepared cable end by joining the cable inner conductor with an inner conductor of the straight plug connector and the cable outer conductor of the HF corrugated cable with an outer conductor of the straight plug connector;

cold forming a region of the HF corrugated cable attached to the plug connector or separated from the plug connector by applying a bending force directed transversely to a longitudinal extent of the HF corrugated cable and a tensile force directed longitudinally to the HF corrugated cable to permanently bend the HF corrugated cable to have a bending radius r_α

, wherein 0.2 r_k,min≦

r_α

≦

0.9 r_k,min, which alters the line impedance Z_k to a maximum of 1 ohm.

39. The method according to claim 38, wherein:

coating at least the bend of the HF corrugated cable with a plastic or an adhesive.

40. The method according to claim 38, comprising:

forming the HF corrugated cable to cause the plug connector to be joined to the cable end while the cable is releasably attached to a retaining means, which is guided pivotably relatively to a bending guide to form the bend; and

wherein

the retaining means, including the plug connector joined to the HF corrugated cable is pivoted relative to the bending guide, the HF corrugated cable being attached to or following the plug connector and contacts the bending guide while an orthogonal bending force is applied to the bending guide, and an axial force is applied to the HF corrugated cable longitudinally to the HF corrugated cable in a region spaced apart from the plug connection and the axial force creates tensile stress within the HF corrugated cable during the pivoting of the retaining means.

41. The method according to claim 39, wherein:

forming the HF corrugated cable to cause the plug connector to be joined to the cable end while the cable is releasably attached to a retaining means, which is guided pivotably relatively to a bending guide to form the bend; and

wherein

the retaining means, including the plug connector joined to the HF corrugated cable is pivoted relative to the bending guide, the HF corrugated cable being attached to or following the plug connector and contacts the bending guide while an orthogonal bending force is applied to the bending guide, and an axial force is applied to the HF corrugated cable longitudinally to the HF corrugated cable in a region spaced apart from the plug connection and the axial force creates tensile stress within the HF corrugated cable during the pivoting of the retaining means.

42. The method according to claim 40, comprising:

applying orthogonal force to the HF corrugated cable during pivoting of the retaining means relative to the bending guide.

43. The method according to claim 41, wherein:

applying orthogonal force to the HF corrugated cable during pivoting of the retaining means relative to the bending guide.

44. The method according to claim 42, wherein:

the orthogonal force is applied by guiding a rolling or sliding body relative to the bending guide which contacts the HF corrugated cable.

45. The method according to claim 43, wherein:

the orthogonal force is applied by guiding a rolling or sliding body relative to the bending guide which contacts the HF corrugated cable.

46. The method according to claim 44, comprising:

contacting the HF corrugated cable with the rolling or the sliding body which at least an eighth of a circumferential edge thereof.

47. The method according to claim 45, wherein:

contacting the HF corrugated cable with the rolling or the sliding body which at least an eighth of a circumferential edge thereof.

48. The method according to claim 38, comprising:

cold forming the HF corrugated cable which joins the straight plug connector to the cable end while the cable end is fixed to a stationary retainer.

49. The method according to claim 39, wherein:

cold forming the HF corrugated cable which joins the straight plug connector to the cable end while the cable end is fixed to a stationary retainer.

50. The method according to claim 38, wherein:

applying the bending force and the tensile stress during cold forming without altering an electrical diameter of the bend to vary more than 10% from an electrical diameter of a straight region of the HF corrugated cable.

51. The method according to claim 38, comprising:

bending the HF corrugated cable permanently to have a bending radius r_α

, where 0.4 r_k,min≦

r_α

≦

0.6 r_k,min, while the HF corrugated cable is attached to or follows the straight plug connector.

52. The method of claim 41 wherein:

the angular plug connector includes a 90°

bend and a mating plug connector.

53. The method of claim 42 wherein:

the angular plug connection transmits frequencies greater than a 4 GHz while providing measuring or calibration.