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EP0190939A2
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EP
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High frequency attenuation cable and harness
Assignee: Raychem Corp
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Filing: 1986-02-06
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Granted: —
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Expires: 2006-02-06
Abstract
Abstract A high frequency attenuation cable comprises a core comprising at least one conductor, each conductor being surrounded by a high frequency absorption medium and at least one layer of high dielectric constant material having a dielectric constant (ε) greater than about 4 when measured at 10 MHz and a volume resistivity of at least about 10' 3 ohm-cm. The high dielectric constant material may be positioned between the conductor and the high frequency absorption medium, outside of the high frequency absorption medium or both. The high dielectric constant material is preferably polyvinylidene fluoride. There is also disclosed a high frequency attenuation harness which includes a plurality of such high frequency attenuation cables.
Inventors
- 👤 Richard Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 10:58
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/02; H01B11/06; H01B11/12; H01B11/14; H01B11/146
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
59 words
A high frequency attenuation cable comprising a core comprising at least one conductor, each conductor being surrounded by: (a) a layer of high dielectric constant material having a dielectric constant greater than about 4 when measured at 10 MHz and a volume resistivity of at least about 10 13 ohm-cm; and (b) a layer of high frequency absorption medium.
Claim 2
Dependent Claim
59 words
A high frequency attenuation cable comprising a core comprising at least one conductor, each conductor being surrounded by: (a) a layer of high dielectric constant material having a dielectric constant greater than about 4 when measured at 10 MHz and a volume resistivity of at least about 10 13 ohm-cm; and (b) a layer of high frequency absorption medium.
Claim 3
Dependent Claim
21 words
A cable in-accordance with Claim 1, wherein said high dielectric constant material has a tensile strength greater than about 4,000 psi.
Claim 4
Dependent Claim
26 words
A cable in accordance with Claim 1, wherein said layer of high dielectric constant material is positioned between said conductor and said layer of absorption medium.
Claim 5
Dependent Claim
24 words
A cable in accordance with Claim 1, wherein said layer of absorption medium is positioned between the conductor and the high dielectric constant material.
Claim 6
Dependent Claim
15 words
A cable-in accordance with Claim 1, which further comprises an additional layer of dielectric material.
Claim 7
Dependent Claim
44 words
A cable in accordance with Claim 5, wherein the additional layer of dielectric material comprises a high dielectric constant material having a dielectric constant greater than about 4 when measured at 10 MHz and a volume resistivity of at least about 10 13 ohm-cm.
Claim 8
Dependent Claim
18 words
A cable in accordance with Claim 5, wherein said additional layer of dielectric material surrounds said other layers.
Claim 9
Dependent Claim
25 words
A cable in accordance with Claim 5, wherein said additional layer of dielectric material comprises a material having a dielectric constant less than about 3.
Claim 10
Dependent Claim
16 words
A cable in accordance with Claim 1, wherein said high dielectric constant material is polyvinylidene fluoride.
Claim 11
Dependent Claim
19 words
A cable in accordance with Claim 1, wherein said high frequency absorption medium comprises a ferrite loaded polymeric material.
Claim 12
Dependent Claim
18 words
A cable in accordance with Claim 1, wherein said core is surrounded by an electrically conductive shielding means.
Claim 13
Dependent Claim
67 words
A high frequency attenuation cable harness comprising a plurality of cables, each cable comprising a core comprising at least one conductor, each conductor being surrounded by: (a) a layer of high dielectric constant material having a dielectric constant greater than about 4 when measured at 10 MHz and a volume resistivity of at least about 10 13 ohm-cm; and (b) a layer of high frequency absorption medium.
Claim 14
Dependent Claim
67 words
A high frequency attenuation cable harness comprising a plurality of cables, each cable comprising a core comprising at least one conductor, each conductor being surrounded by: (a) a layer of high dielectric constant material having a dielectric constant greater than about 4 when measured at 10 MHz and a volume resistivity of at least about 10 13 ohm-cm; and (b) a layer of high frequency absorption medium.
Claim 15
Dependent Claim
18 words
The high frequency attenuation cable harness of Claim 11 wherein the high dielectric constant material is polyvinylidene fluoride.
Claim 16
Dependent Claim
19 words
The high frequency attenuation cable harness of Claim 12, wherein the high frequency absorption medium is ferrite loaded polymer.
Claim 17
Dependent Claim
31 words
The high frequency attenuation cable harness of Claim 12, further comprising an electrically conductive shielding means surrounding each of said cables and an outer jacket surrounding each of said shielding means.
Claim 18
Dependent Claim
19 words
The high frequency attenuation cable harness of Claim 15, further comprising protective outer jacketing surrounding the plurality of cables.
Claim 19
Dependent Claim
30 words
The high frequency attenuation cable harness of Claim 12, further comprising gross electrically conductive shielding means surrounding the plurality of cables and protective outer jacketing surrounding the gross shielding means.
References Cited (Backward Citations)
No citation records indexed.
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