GB982748A - Low capacitance type of high-frequency cable - Google Patents

Low capacitance type of high-frequency cable

Info

Publication number
GB982748A
GB982748A GB36173/63A GB3617363A GB982748A GB 982748 A GB982748 A GB 982748A GB 36173/63 A GB36173/63 A GB 36173/63A GB 3617363 A GB3617363 A GB 3617363A GB 982748 A GB982748 A GB 982748A
Authority
GB
United Kingdom
Prior art keywords
polyethylene
low capacitance
sept
rope
plastics
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB36173/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB982748A publication Critical patent/GB982748A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1834—Construction of the insulation between the conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/12—Arrangements for exhibiting specific transmission characteristics

Landscapes

  • Communication Cables (AREA)

Abstract

982,748. Electric cables. STANDARD TELEPHONES & CABLES Ltd. Sept. 13, 1963 [Sept. 19, 1962], No. 36173/63. Heading H1A. In a low capacitance, air-spaced high frequency coaxial cable the effective dielectric constant of the material between its conductors 1, 6 is reduced by having two layers of insulating material, the internal one consisting of a rope 2 helically enclosing the inner conductor 1 and bounded by a plastics foil 4, and the external one consisting of a plastics foam layer 5. The rope 2 may be of polyethylene thread or of polyethylene foam which may be strengthened with a core 3 of conducting or insulating material, e.g. polyamide, and the external insulating layer 5 may also be of polyethylene foam. The outer conductor 6 is of copper mesh or tape and is covered with a protective sheath 7 of P.V.C. The plastics foil 4 may be of cellulose triacitate, polyethylene or polypropylene.
GB36173/63A 1962-09-19 1963-09-13 Low capacitance type of high-frequency cable Expired GB982748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST019733 1962-09-19

Publications (1)

Publication Number Publication Date
GB982748A true GB982748A (en) 1965-02-10

Family

ID=7458327

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36173/63A Expired GB982748A (en) 1962-09-19 1963-09-13 Low capacitance type of high-frequency cable

Country Status (9)

Country Link
US (1) US3248473A (en)
AT (1) AT247941B (en)
BE (1) BE637567A (en)
CH (1) CH417707A (en)
DE (1) DE1590514A1 (en)
DK (1) DK109994C (en)
FI (1) FI44253B (en)
GB (1) GB982748A (en)
NL (1) NL298138A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133455A (en) * 1965-12-10 1968-11-13 British Insulated Callenders Improvements in or relating to direct current electric cables
US3441660A (en) * 1966-07-12 1969-04-29 Gen Cable Corp Solid aluminum conductor insulated with cross-linked polyethylene
US6812401B2 (en) * 1998-10-05 2004-11-02 Temp-Flex Cable, Inc. Ultra-small high-speed coaxial cable with dual filament insulator
US6509521B1 (en) * 2000-11-10 2003-01-21 Scimed Life Systems, Inc. X-ray catheter with coaxial conductor
US6540720B1 (en) 2000-11-10 2003-04-01 Scimed Life Systems, Inc. Miniature x-ray unit
US6540655B1 (en) 2000-11-10 2003-04-01 Scimed Life Systems, Inc. Miniature x-ray unit
US6551278B1 (en) * 2000-11-10 2003-04-22 Scimed Life Systems, Inc. Miniature x-ray catheter with retractable needles or suction means for positioning at a desired site
US6546080B1 (en) * 2000-11-10 2003-04-08 Scimed Life Systems, Inc. Heat sink for miniature x-ray unit
US6554757B1 (en) 2000-11-10 2003-04-29 Scimed Life Systems, Inc. Multi-source x-ray catheter
US7361831B2 (en) * 2006-08-11 2008-04-22 Sumitomo Electric Industries, Ltd. Coaxial cable and multi-coaxial cable
JP5463849B2 (en) * 2009-10-22 2014-04-09 住友電気工業株式会社 Multi-core coaxial cable and manufacturing method thereof
WO2012138717A1 (en) 2011-04-07 2012-10-11 3M Innovative Properties Company High speed transmission cable
US9355755B2 (en) 2011-04-07 2016-05-31 3M Innovative Properties Company High speed transmission cable
US9455070B2 (en) * 2013-12-24 2016-09-27 Belden Inc. Semi-solid unbalanced audio cable
US9748022B2 (en) * 2013-12-24 2017-08-29 Belden Inc. Semi-solid balanced audio cable
US20180303537A1 (en) * 2015-10-16 2018-10-25 U.S. Patent Innovations Llc Low Eletromagnetic Field Electrosurgical Cable

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE699832C (en) * 1936-04-29 1940-12-07 Siemens & Halske Akt Ges Concentric, air-space-insulated low-capacitance line with at least one spacer made of dimensionally stable insulating materials, wound around the inner conductor in open screw turns
GB529649A (en) * 1939-05-24 1940-11-26 Standard Telephones Cables Ltd Improvements in or relating to electric communication cables
GB578186A (en) * 1941-02-03 1946-06-19 Edward Cecil Cork Improvements in or relating to electric cables
GB584153A (en) * 1944-10-20 1947-01-08 Standard Telephones Cables Ltd Improvements in or relating to electric communication cables
US2814666A (en) * 1953-04-08 1957-11-26 Belden Mfg Co Electrical cable

Also Published As

Publication number Publication date
BE637567A (en)
CH417707A (en) 1966-07-31
US3248473A (en) 1966-04-26
NL298138A (en)
DE1590514A1 (en) 1969-09-04
AT247941B (en) 1966-07-11
DK109994C (en) 1968-08-19
FI44253B (en) 1971-06-30

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