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DE937171C - Electric cables, in particular antenna cables - Google Patents

Electric cables, in particular antenna cables

Info

Publication number
DE937171C
DE937171C DES939A DES0000939A DE937171C DE 937171 C DE937171 C DE 937171C DE S939 A DES939 A DE S939A DE S0000939 A DES0000939 A DE S0000939A DE 937171 C DE937171 C DE 937171C
Authority
DE
Germany
Prior art keywords
cables
line
polyethylene
electrical
patent nos
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
DES939A
Other languages
German (de)
Inventor
Albrecht Dipl-Ing Boehse
Joachim Geyler
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Priority to DES939A priority Critical patent/DE937171C/en
Application granted granted Critical
Publication of DE937171C publication Critical patent/DE937171C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors

Landscapes

  • Communication Cables (AREA)

Description

Die Erfindung betrifft eine Hochfrequenzleitung mit niedrigem Wellenwiderstand von z. B. 6o bis 70 Ohm, insbesondere eine Antennenleitung. Die Herstellung einer Leitung mit einem derart niedrigen Wellenwiderstand bereitet besondere Schwierigkeiten, da der Abstand der beiden Leiter von einander nur wenige zehntel Millimeter betragen darf. Ferner muß der Abstand der beiden Leiter zur Vermeidung von Wellenwiderstandsschwankungen möglichst konstant sein.The invention relates to a high-frequency line with a low characteristic impedance of, for. B. 6o to 70 ohms, especially an antenna line. The production of a line with such a low wave impedance presents particular difficulties, since the distance between the two conductors may only be a few tenths of a millimeter. Furthermore, the distance between the two conductors must be as constant as possible to avoid fluctuations in the characteristic impedance.

Es ist an sich bekannt, elektrische Leitungen mit Polyäthylen zu isolieren. Hierbei hat man entweder die Leiter mit Polyäthylen umspritzt oder mit Bändern umwickelt. Insbesondere ist für Koaxialleiter vorgeschlagen worden, den inneren Leiter mit Streifen oder Bändern in offener Schraubenwindung zu umwickeln, um eine entsprechende Luftraumisolierung zu erzielen.It is known per se to insulate electrical lines with polyethylene. In this case, the ladder was either overmolded with polyethylene or wrapped with ribbons. In particular, it has been proposed for coaxial conductors to use the inner conductor Wrap strips or ribbons in an open screw turn around a corresponding one To achieve air space isolation.

Gemäß der Erfindung wird eine Hochfrequenzleitung mit niedrigem Wellenwiderstand mit zwei in einem Abstand von wenigen zehntel Millimetern angeordneten Adern geschaffen, bei der die Adern der Leitung mit Folien aus Polyäthylen od. dgl. umhüllt bzw. umsponnen und nach der Verseilung mit Polyäthylen umspritzt sind. Hierdurch wird in sicherer Weise erreicht, daß die beiden Adern in einem konstant bleibenden Abstand von nur wenigen zehntel Millimetern liegen, so daß ein gleichbleibender niedriger Wellenwiderstand garantiert ist. Der äußere Schutz gegen Feuchtigkeit und mechanischeBeanspruchung wird durchUmspritzen mit Polyäthylen erzielt.According to the invention, a high-frequency line with a low characteristic impedance is provided created with two wires spaced a few tenths of a millimeter apart, in which the wires of the line with foils made of polyethylene od. The like. Sheathed or spun and after stranding are encapsulated with polyethylene. This will make it safer Way achieved that the two veins at a constant distance of only a few tenths of a millimeter, so that a consistently low wave resistance is guaranteed. The external protection against moisture and mechanical stress is achieved by overmolding with polyethylene.

In der Figur ist die Erfindung an einem Ausführungsbeispiel näher erläutert. Die Leitungsadern 1 sind mit Folien 2 umsponnen und nach der Verseilung mit einem Mantel 3 aus Polyäthylen umspritzt.In the figure, the invention is shown in more detail in an exemplary embodiment explained. The line cores 1 are wrapped with foils 2 and after stranding encapsulated with a jacket 3 made of polyethylene.

Claims (1)

PATENTANSPRUCH: Hochfrequenzleitung mit niedrigem Wellenwiderstand und zwei in einem Abstand von wenigen zehntel Millimetern von einander angeordneten Adern, insbesondere . Antennenleitung, z. B. für Ultrakurzwellen, dadurch gekennzeichnet, daß die Adern der Leitung mit Folien aus Polyäthylen od. dgl. umhüllt bzw. umsponnen und nach der Verseilung mit Polyäthylen umspritzt sind. -Angezogene Druckschriften: Schweizerische Patentschriften Nr. 211 185, 211186, 219416; französischePatentschriften Nr.566 o75, 844722, 844723, 858212, 866075; britische Patentschriften Nr. 471590, 527763, 572424; »Electrical Engineering«, April 1949, S. 53A; »Modern Plastic«, Februar 1948, Heft 6, S. 73 und 8o; »Funk und Ton«, 1947, Nr.6, S.295 und 305; z u r M e g e d e, »Fortleitung elektrischer Energie längs Leitungen in Starkstrom- und Fernmeldetechnik«, S. 44 und 45; K a i n e r, »Kurzes Handbuch der Polymerisationstechnik«, Bd. 3, 1944, S. 734; »Kunststoffe«, 1946, S. 56; »Elektrische Nachrichtentechnik«, 1940, S.42, 1941, S. 118.PATENT CLAIM: High-frequency line with low wave resistance and two cores arranged at a distance of a few tenths of a millimeter from one another, in particular. Antenna cable, e.g. B. for ultra-short waves, characterized in that the wires of the line od with foils made of polyethylene. - Referred publications: Swiss patent specifications No. 211 185, 211186, 219416; French Patent Nos. 566 075, 844722, 844723, 858212, 866 0 75; British Patent Nos. 471590, 527763, 572424; "Electrical Engineering," April 1949, p. 53A; "Modern Plastic", February 1948, No. 6, pp. 73 and 8o; "Funk und Ton", 1947, No. 6, pp.295 and 305; on M egede, "Transmission of electrical energy along lines in heavy current and telecommunications technology", pp. 44 and 45; K ainer, "Kurzes Handbuch der Polymerisierungstechnik", Vol. 3, 1944, p. 734; "Kunststoffe", 1946, p. 56; "Electrical communications engineering", 1940, p. 42, 1941, p. 118.
DES939A 1949-12-06 1949-12-06 Electric cables, in particular antenna cables Expired DE937171C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES939A DE937171C (en) 1949-12-06 1949-12-06 Electric cables, in particular antenna cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES939A DE937171C (en) 1949-12-06 1949-12-06 Electric cables, in particular antenna cables

Publications (1)

Publication Number Publication Date
DE937171C true DE937171C (en) 1955-12-29

Family

ID=7468958

Family Applications (1)

Application Number Title Priority Date Filing Date
DES939A Expired DE937171C (en) 1949-12-06 1949-12-06 Electric cables, in particular antenna cables

Country Status (1)

Country Link
DE (1) DE937171C (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR566075A (en) * 1923-05-12 1924-02-08 Ferrodesherbeuse Scheuchzer S Apparatus for weeding railway tracks
GB471590A (en) * 1936-02-04 1937-09-06 Eric William Fawcett Improvements in or relating to the polymerisation of ethylene
FR844723A (en) * 1937-10-14 1939-07-31 Ici Ltd Improvements in the manufacture of electric cables
FR844722A (en) * 1937-10-14 1939-07-31 Ici Ltd Improvements in the manufacture of electric cables
CH211186A (en) * 1937-10-14 1940-08-31 Ici Ltd Electric cable for the transmission of high voltage currents and process for the production thereof.
GB527763A (en) * 1939-02-02 1940-10-16 John Cuthbert Swallow Improvements in and relating to the manufacture of electric cables
FR866075A (en) * 1939-02-02 1941-06-16 Ici Ltd Electric cable and manufacturing process
CH219416A (en) * 1939-09-14 1942-02-15 Standard Oil Dev Co Plastic mass.
GB572424A (en) * 1943-09-21 1945-10-08 Duratube & Wire Ltd Improvements in and relating to the insulation of electrical conductors

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR566075A (en) * 1923-05-12 1924-02-08 Ferrodesherbeuse Scheuchzer S Apparatus for weeding railway tracks
GB471590A (en) * 1936-02-04 1937-09-06 Eric William Fawcett Improvements in or relating to the polymerisation of ethylene
FR844723A (en) * 1937-10-14 1939-07-31 Ici Ltd Improvements in the manufacture of electric cables
FR844722A (en) * 1937-10-14 1939-07-31 Ici Ltd Improvements in the manufacture of electric cables
CH211185A (en) * 1937-10-14 1940-08-31 Ici Ltd Electric cable for the transmission of high frequency pulses.
CH211186A (en) * 1937-10-14 1940-08-31 Ici Ltd Electric cable for the transmission of high voltage currents and process for the production thereof.
GB527763A (en) * 1939-02-02 1940-10-16 John Cuthbert Swallow Improvements in and relating to the manufacture of electric cables
FR866075A (en) * 1939-02-02 1941-06-16 Ici Ltd Electric cable and manufacturing process
CH219416A (en) * 1939-09-14 1942-02-15 Standard Oil Dev Co Plastic mass.
GB572424A (en) * 1943-09-21 1945-10-08 Duratube & Wire Ltd Improvements in and relating to the insulation of electrical conductors

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