DE650837C - Spacers for air-space-insulated high-frequency lines arranged between the conductor and the outer casing - Google Patents
Spacers for air-space-insulated high-frequency lines arranged between the conductor and the outer casingInfo
- Publication number
- DE650837C DE650837C DEF78378D DEF0078378D DE650837C DE 650837 C DE650837 C DE 650837C DE F78378 D DEF78378 D DE F78378D DE F0078378 D DEF0078378 D DE F0078378D DE 650837 C DE650837 C DE 650837C
- Authority
- DE
- Germany
- Prior art keywords
- conductor
- air
- spacers
- space
- insulated high
- 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
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
- H01B11/1847—Construction of the insulation between the conductors of helical wrapped structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/06—Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure
-
- 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
- H01B11/20—Cables having a multiplicity of coaxial lines
Landscapes
- Waveguides (AREA)
- Communication Cables (AREA)
Description
Zwischen Leiter und äußerer Umhüllung angeordneter Abstandhalter für luftraumisolierte 4nchfrequenzleitungen Der Übertragung hoher Frequenzen dienen koaxiale Leiter, die zur Erzielung einer geringstmöglichen Kapazität zwischen den Leitern mit einer Luftraumisolation versehen sind.Spacer arranged between the conductor and the outer covering for Air-space-insulated 4-frequency lines are used for the transmission of high frequencies coaxial conductors designed to achieve the lowest possible capacitance between the Ladders are provided with air space insulation.
Die Kapazität ist bekanntlich um so geringer, je weniger Isoliermaterial verwendet wird und je niedriger die Dielektrizitätskonstante des Isöliermaterials ist. Die Einsparung des Isoliermaterials darf naturgemäß nur so weit getrieben werden, daß die mechanische Festigkeit nicht beeinträchtigt wird. Der Verlustwinkel des Isoliermaterials darf, um größere Verluste zu vermeiden, nur gering sein.As is well known, the less insulating material, the lower the capacity is used and the lower the dielectric constant of the insulating material is. The saving of the insulating material may of course only be taken to the extent that that the mechanical strength is not impaired. The loss angle of the Insulating material may only be small in order to avoid major losses.
Die Erfindung hat die Aufgabe, ein solches Kabel derart aufzubauen, daß bei geringstmöglicher Kapazität die erforderliche m echanische Festigkeit in hohem Maße erreicht wird.The invention has the task of constructing such a cable in such a way that that with the lowest possible capacity the required mechanical strength in is achieved to a high degree.
Die Erti ,dung betrifft zwischen Leiter und äußerer Umhüllung angeordnete Abstandhalter für luftraurnisolierte Hochfrequenzleitungen in Form von Wendeln und besteht darin, daß die selbsttragende Wendel aus formfesten Isolierstoffen, wie z. B. Polystyrol, besteht.The Erti, dung relates to those arranged between the conductor and the outer covering Spacers for air-insulated high-frequency cables in the form of coils and consists in that the self-supporting coil made of dimensionally stable insulating materials, such as z. B. polystyrene.
Als Abstandhalter dienende Wendeln sind an sich bei Fernmeldeluftraumadern bekannt. Da sie jedoch aus nachgiebigen Isolierstoffen bestanden, mußte im Innern ein Trägerkörper vorgesehen werden. Infolgedessen wurde die Kapazität nur unwesentlich verringert.Coils serving as spacers are per se in telecommunication air space cores known. However, since they were made of flexible insulating materials, they had to be inside a carrier body can be provided. As a result, the capacity became negligible decreased.
Die Achsen der Wendeln können entweder parallel zur Leiterachse laufen oder auch ihrerseits den inneren Leiter wiederum in Schraubenlinien umgeben.The axes of the coils can either run parallel to the conductor axis or in turn surround the inner conductor in helical lines.
Hierdurch wird der Vorteil erzielt, daß möglichst wenig Isoliermaterial bei gleichzeitiger Erreichung einer hohen mechanischen Festigkeit verwendet wird: Das auf diese Weise hergestellte Kabel ist außerdem sehr beweglich, und die schraubenlinienförmigen Drähte werden nur ,auf Torsion beansprucht.This has the advantage that as little insulating material as possible while at the same time achieving high mechanical strength, the following is used: The cable made in this way is also very mobile, and the helical ones Wires are only subjected to torsion stress.
Ein weiterer Vorteil. besteht in der` Leichten Herstellungsmöglichkeit derartiger Kabel. Die Einzelelemente können einfach zusammengebündelt und von dem Mantel umgeben werden, wenn ihre °Achsen parallel laufen sollen, oder anderenfalls nach bekannten Verfahren miteinander verseilt und dann von dem äußeren Mantel umgeben werden.Another advantage. consists in the possibility of easy production such cables. The individual elements can simply be bundled together and used by the Sheath are surrounded if their ° axes are to run parallel, or otherwise stranded together by known methods and then surrounded by the outer jacket will.
Als Isoliermaterial hat sich Polystyrol als zweckmäßig erwiesen, das eine geringe Dielektrizitätskoristante, .einen geringen Verlustwinkel, hohe mechanische Festigkeit, b:3sonders Torsionsfestigkeit, und leichte Formbarkeit besitzt: In der Zeichnung sind einige Ausführungsbeispiele des Erfindungsgegenstandes dargestellt.As an insulating material, polystyrene has proven to be useful a low dielectric constant, a low loss angle, high mechanical Strength, b: 3 particularly torsional strength, and easy formability: In the Some exemplary embodiments of the subject matter of the invention are shown in the drawing.
Fig. i zeigt einen Leiter gemäß der Erfindung im Schnitt und in der Seitenansicht, bei dem sich zwischen dem inneren Leiter a und dem äußeren Leiter c wendelförmige Drähte aus Isoliermaterial b befinden. Die Achsen der Schraubenlinien laufen parallel zu der Achse des Leiters.Fig. I shows a conductor according to the invention in section and in Side view in which between the inner conductor a and the outer conductor c helical wires made of insulating material b are located. The axes of the helical lines run parallel to the axis of the conductor.
In Fig. 2 ist eine Anordnung mit mehreren koaxialen Leitern dargestellt. Die mittleren Leiterschichtena' 1md a" sind von der inneren, a, und der äußeren, c, und gegeneinander ebenfalls durch schraubenlinienför:rigeDrähte aus Isoliermaterial b getrennt.In Fig. 2, an arrangement with a plurality of coaxial conductors is shown. The middle conductor layers a '1md a "are of the inner, a, and the outer, c, and against each other also by helical wires made of insulating material b separated.
In Fig.3 laufen die schraubenlinienförmigen Drähte b ihrerseits wiederum schraubenlinienförmig -um den Leiterz; darüber befindet sich wieder der koaxiale Leiter c.In Figure 3, the helical wires b run in turn helical-around the conductorz; above it is again the coaxial one Head c.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF78378D DE650837C (en) | 1934-11-15 | Spacers for air-space-insulated high-frequency lines arranged between the conductor and the outer casing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF78378D DE650837C (en) | 1934-11-15 | Spacers for air-space-insulated high-frequency lines arranged between the conductor and the outer casing | |
| DE2116267X | 1934-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE650837C true DE650837C (en) | 1937-10-11 |
Family
ID=25977845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEF78378D Expired DE650837C (en) | 1934-11-15 | Spacers for air-space-insulated high-frequency lines arranged between the conductor and the outer casing |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE650837C (en) |
-
0
- DE DEF78378D patent/DE650837C/en not_active Expired
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