EP1047156B1 - Coaxial connector - Google Patents

Coaxial connector Download PDF

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Publication number
EP1047156B1
EP1047156B1 EP00108198A EP00108198A EP1047156B1 EP 1047156 B1 EP1047156 B1 EP 1047156B1 EP 00108198 A EP00108198 A EP 00108198A EP 00108198 A EP00108198 A EP 00108198A EP 1047156 B1 EP1047156 B1 EP 1047156B1
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EP
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Prior art keywords
coaxial connector
coaxial
plug
conductor
internal conductor
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EP00108198A
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German (de)
French (fr)
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EP1047156A1 (en
Inventor
Bernhard Dipl.-Ing. Rosenberger
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Rosenberger Hochfrequenztechnik GmbH and Co KG
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Rosenberger Hochfrequenztechnik GmbH and Co KG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
    • H01R24/44—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

To match the dielectric characteristics of the plugging end of an insulating plate (16), a hole (18) for an inner conductor a reduced diameter to maintain a predetermined wave impedance. The external diameter of the inner conductor (12) corresponds to th internal diameter of the hole. The inner conductor is surrounded up to a plug interface (22) by an additional dielectric (20), whose radial thickness is selected w.r.t. its dielectric constant to give the predetermined wave impedance.

Description

Die Erfindung betrifft einen Koaxialverbinder mit einem Außenleiter und einem koaxial zu dem Außenleiter angeordneten Innenleiter, wobei zum Herstellen eines vorbestimmten Wellenwiderstandes ZL das Verhältnis von Außendurchmesser d des Innenleiters zu Innendurchmesser D des Außenleiters von d/D einen vorbestimmten Wert aufweist, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a coaxial connector with an outer conductor and an inner conductor arranged coaxially to the outer conductor, the ratio of the outer diameter d of the inner conductor to the inner diameter D of the outer conductor of d / D having a predetermined value for producing a predetermined characteristic impedance Z L , according to the preamble of Claim 1.

Ein gattungsgemäßer 7/16-Koaxialverbinder ist aus der DIN-Norm 47 223 bekannt. Bei einem derartigen 7/16-Koaxialverbinder weist der Außendurchmesser d des Innenleiters einen Wert von ca. 7 mm und der Innendurchmesser D des Außenleiters einen Wert von ca. 16 mm auf. Hierdurch wird mit Luft als Dielektrikum zwischen Innenleiter und Außenleiter über den Stecker ein konstanter Wellenwiderstand von 50 Ω erzielt. Die Steckverbinderfamilie 7/16 ist für die Verbindung von Rohrleitungen und biegsamen Kabeln geeignet, die einen wirksamen Innendurchmesser des Außenleiters von vorzugsweise 10 bis 20 mm aufweisen. Bei derartigen Steckverbindern ist sowohl bei einem Kuppler mit buchensförmigem Innenleiter als auch bei einem Stecker mit stiftförmigem Innenleiter eine Isolierstoffscheibe zum Tragen und Stützen des Innenleiters innerhalb des Außenleiters vorgesehen. Diese Isolierstoffscheibe ist aus Isolationsgründen aus einem Isolator gefertigt, der dementsprechend physikalisch ein Dielektrikum darstellt. Da jedoch die Abmessungen 7 mm /16 mm für ein Dielektrikum von Luft zwischen dem Innenleiter und dem Außenleiter ausgelegt sind, muß der Innenleiter im Bereich der Isolierstoffscheibe einen verringerten Durchmesser aufweisen, um gemäß der Wellengleichung wieder den gewünschten Wellenwiderstand von 50 Ω zu erhalten. Aus diesem Grunde weist der Innenleiter eines der DIN-Norm 47 223 entsprechenden 7/16-Koaxialverbinders im Bereich der Isolierstoffscheibe eine Einschnürung auf. Beidseits der Isolierstoffscheibe bzw. beidseits dieser entsprechenden Einschnürung weist der Innenleiter wieder den entsprechenden Außendurchmesser von ca. 7 mm auf. Dies hat jedoch den erheblichen Nachteil, daß zur Herstellung und Montage eines derartigen 7/16-Koaxialverbinders mit Isolierstoffscheibe ein großer Aufwand erforderlich ist, da der Innenleiter nicht einfach durch die Isolierstoffscheibe hindurch geschoben werden kann.A generic 7/16 coaxial connector is known from the DIN standard 47 223. With such a 7/16 coaxial connector, the outer diameter d of the inner conductor a value of approx. 7 mm and the inner diameter D of the outer conductor a value of approx. 16 mm. This will use air as the dielectric a constant wave resistance between the inner conductor and outer conductor via the connector achieved by 50 Ω. The connector family 7/16 is for the connection of pipes and flexible cables, which have an effective inner diameter of the outer conductor of preferably 10 to 20 mm. At such connectors is both in a coupler with a socket Inner conductor as well as an insulating disk for a plug with a pin-shaped inner conductor for carrying and supporting the inner conductor within the outer conductor intended. For reasons of insulation, this insulating washer is made from an insulator manufactured, which accordingly represents a dielectric physically. However, since the dimensions 7 mm / 16 mm for a dielectric of air between the inner conductor and the outer conductor are designed, the inner conductor in the area of Insulating washer have a reduced diameter in order to Wave equation to get the desired wave impedance of 50 Ω again. For this reason, the inner conductor has one in accordance with DIN standard 47 223 7/16 coaxial connector in the area of the insulating washer constriction on. On both sides of the insulating washer or on both sides of this corresponding The inner conductor again has the constricted outer diameter from approx. 7 mm. However, this has the considerable disadvantage that for Manufacture and assembly of such a 7/16 coaxial connector with insulating washer A great deal of effort is required because the inner conductor is not simply through the insulating washer can be pushed through.

DE-C-4 300 243 zeigt einen Koaxialverbinder gemäß dem Oberbegrift des Anspruchs 1.DE-C-4 300 243 shows a coaxial connector according to the above term of claim 1.

Der Erfindung liegt daher die Aufgabe zugrunde, den Koaxialverbinder der o.g. Art dahingehend zu verbessern, daß bei unverändertem Wellenwiderstand und möglichst hoher Grenzfrequenz eine vereinfachte Montage und funktionssichere Stekkung möglich ist.The invention is therefore based on the object, the coaxial connector of the above. Art to improve in that with unchanged wave resistance and if possible high cut-off frequency, simplified installation and reliable connection is possible.

Diese Aufgabe wird erfindungsgemäß bei einem Koaxialverbinder der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Ansprüchen beschrieben.This object is achieved in a coaxial connector of the above. Kind with solved the features characterized in claim 1. Advantageous configurations the invention are described in the further claims.

Erfindungsgemäß ist vorgesehen, daß der Innenleiter ausgehend von der Isolierstoffscheibe in steckseitiger Richtung einen Außendurchmesser aufweist, welcher dem verringerten Innendurchmesser der Durchführung der Isolierstoffscheibe entspricht, und daß der Innenleiter ausgehend von der Isolierstoffscheibe in steckseitiger Richtung bis zu einem Steckinterface des Innenleiters von einem zusätzlichen Dielektrikum umgeben ist, dessen radiale Dicke gemäß dessen dielektrischer Konstante ε derart gewählt ist, daß sich gemäß der Wellengleichung der vorbestimmte Wellenwiderstand ZL ergibt. Dies hat den Vorteil, daß der Innenleiter ohne Einschnürung für das steckseitige Isolierstoffteil ausgebildet ist, so daß eine einfache Montage des Koaxialverbinders durch einfaches Hindurchstecken des Innenleiters durch das Isolierstoffteil möglich ist. Gleichzeitig ist es durch die erfindungsgemäße Ausbildung des d/D-Koaxialverbinders möglich, diesen ohne Kompensationsmaßnahmen im Bereich der elektrischen bzw. mechanischen Referenzebene mit einem normgerechten d/D-Koaxialverbinder zu verbinden. Femer ist trotz Abweichung vom Normmaß d des Innenleiters am steckseitigen Ende bezüglich der Isolierstoffscheibe eine unveränderte Dimensionierung des Innendurchmessers D des Außenleiters im steckseitigen Ende des Koaxialverbinders möglich, so daß bei der Verbindung mit einem dem Verhältnis d/D entsprechenden Koaxialverbinder am Außenleiter, welcher sowohl die mechanische als auch elektrische Referenzebene definiert, kein Sprung und keine Kompensation zum Erzielen des vorbestimmten Wellenwiderstandes ZL erforderlich ist.According to the invention, it is provided that the inner conductor, starting from the insulating material disc in the plug-side direction, has an outer diameter which corresponds to the reduced inner diameter of the bushing of the insulating material disc, and that the inner conductor, starting from the insulating material disc in the plug-side direction, is surrounded by an additional dielectric up to a plug-in interface of the inner conductor whose radial thickness is selected in accordance with its dielectric constant ε such that the predetermined wave resistance Z L results in accordance with the wave equation. This has the advantage that the inner conductor is designed without a constriction for the plug-in insulating part, so that the coaxial connector can be easily assembled by simply pushing the inner conductor through the insulating part. At the same time, the inventive design of the d / D coaxial connector makes it possible to connect it to a standard d / D coaxial connector without compensation measures in the area of the electrical or mechanical reference plane. Furthermore, despite the deviation from the standard dimension d of the inner conductor at the plug-side end with respect to the insulating washer, an unchanged dimensioning of the inner diameter D of the outer conductor in the plug-side end of the coaxial connector is possible, so that when connecting to a coaxial connector corresponding to the ratio d / D on the outer conductor, which does both the mechanical as well as electrical reference plane defined, no jump and no compensation to achieve the predetermined characteristic impedance Z L is required.

Der Koaxialverbinder ist beispielsweise ein Koaxialstecker mit stiftförmigem Innenleiter. Bei diesem erzielt man eine stabile und einfach herzustellende Fixierung der Isolierstoffscheibe dadurch, daß im steckseitigen Ende der Außenleiter, ausgehend von der Isolierstoffscheibe, bis zu einer durch ein Außenleiterinterface gebildeten elektrischen und mechanischen Referenzebene mittels eines Metallringes, insbesondere Einpreßringes, ausgebildet ist.The coaxial connector is, for example, a coaxial connector with a pin-shaped inner conductor. With this one achieves a stable and easy to manufacture fixation the insulating washer in that in the plug end of the outer conductor, starting from the insulating material disc to one formed by an outer conductor interface electrical and mechanical reference plane using a metal ring, especially press ring is formed.

Der Koaxialverbinder ist alternativ als Koaxialkuppler mit buchsenförmigem Innenleiter ausgebildet, wobei der buchsenförmige Innenleiter im Bereich seines Steckinterfaces mittels radial über dessen Umfang verteilter axialer Schlitze spannzangenförmig ausgebildet ist. Hierbei ergibt sich der besondere Vorteil, daß durch die erfindungsgemäße Ausbildung des Innenleiters mit dem zusätzlichen Dielektrikum, welches die Spannzange überdeckt, entsprechende Segmente der Spannzange durch das Dielektrikum zusätzlich gestützt sind. Wird nun dieser Kuppler mit einem Stecker verbunden und sind Kuppler und Stecker nicht genau zueinander fluchtend angeordnet, so kommt es nicht zu einem Verbiegen oder möglicherweise sogar Abbrechen der Segmente der Spannzange, welche durch die Außendurchmesserverringerung des Innenleiters bezüglich eines normgerechten Kupplers eine geringere Wandstärke aufweisen. The coaxial connector is alternatively a coaxial coupler with a socket-shaped inner conductor formed, the socket-shaped inner conductor in the area of his Plug-in interfaces by means of axial slots distributed radially over its circumference is formed like a collet. This has the particular advantage that through the inventive design of the inner conductor with the additional Dielectric covering the collet, corresponding segments of the Collet are additionally supported by the dielectric. Now this one Coupler connected with a plug and coupler and plug are not exact arranged in alignment with each other, so there is no bending or possibly even breaking off the segments of the collet which are caused by the outer diameter reduction of the inner conductor with respect to a standard Coupler have a smaller wall thickness.

Zweckmäßigerweise ist der Koaxialverbinder ein 7/16-Koaxialverbinder, beispielsweise ein 7/16-Koaxialkuppler oder ein 7/16-Koaxialstecker, wobei D einen Wert von etwa 16 mm und d einen Wert von etwa 7 mm aufweist sowie der vorbestimmte Wellenwiderstand ZL = 50 Ω beträgt. Hiermit können viele Anwendungsbereiche in der Hochfrequenztechnik, wie beispielsweise im Bereich von Basisstationen mit Mobilfunk, abgedeckt werden, in denen der gewünschte Wellenwiderstand ZL = 50 Ω beträgt.The coaxial connector is expediently a 7/16 coaxial connector, for example a 7/16 coaxial connector or a 7/16 coaxial connector, where D has a value of approximately 16 mm and d has a value of approximately 7 mm, and the predetermined characteristic impedance Z L = Is 50 Ω. This can cover many areas of application in high-frequency technology, such as in the area of base stations with mobile radio, in which the desired characteristic impedance Z L = 50 Ω.

In einer bevorzugten Ausführungsform ist das den Innenleiter umhüllende Dielektrikum einstückig mit der Isolierstoffscheibe und aus dem selben Werkstoff wie die Isolierstoffscheibe ausgebildet, wobei das Dielektrikum einen Raum zwischen Innenleiter und Außenleiter nur teilweise, insbesondere weniger als zur Hälfte, ausfüllt.In a preferred embodiment, the dielectric enveloping the inner conductor in one piece with the insulating washer and made of the same material as that Isolierstoffscheibe formed, the dielectric a space between the inner conductor and outer conductor only partially, in particular less than half, fills.

Die Erfindung wird im folgenden anhand der Zeichnung näher erläutert. Diese zeigt in:

Fig. 1
eine erste Ausführungsform des erfindungsgemäßen Koaxialverbinders in Form eines geraden Steckers in teilweise aufgeschnittener Seitenansicht,
Fig. 2
eine alternative Ausführungsform des Koaxialverbinders in Form eines geraden Kupplers in teilweise aufgeschnittener Seitenansicht,
Fig. 3
zwei erfindungsgemäße und zueinander passende Koaxialverbinder in Form von Buchse/Stecker vor dem Zusammenstecken in teilweise aufgeschnittener perspektivischer Ansicht,
Fig. 4
nach dem Zusammenstecken in teilweise aufgeschnittener perspektivischer Ansicht und
Fig. 5
einen erfindungsgemäßen Koaxialverbinder in Form eines geraden Steckers, welcher mit einem herkömmlichen, normgerechten Koaxialverbinder in Form eines geraden Kupplers zusammengesteckt ist.
The invention is explained below with reference to the drawing. This shows in:
Fig. 1
a first embodiment of the coaxial connector according to the invention in the form of a straight plug in a partially cut-away side view,
Fig. 2
an alternative embodiment of the coaxial connector in the form of a straight coupler in a partially cut-away side view,
Fig. 3
two coaxial connectors according to the invention and matching one another in the form of socket / plug before being plugged together in a partially cut-away perspective view,
Fig. 4
after plugging together in a partially cut perspective view and
Fig. 5
a coaxial connector according to the invention in the form of a straight plug, which is plugged together with a conventional, standardized coaxial connector in the form of a straight coupler.

Der in Fig. 1 dargestellte Koaxialverbinder ist ein 7/16-Koaxialstecker mit einem Außenleiter 10, einem koaxial hierzu angeordneten stiftförmigem Innenleiter 12, einem steckseitigen Ende 14 zum Verbinden mit einem entsprechenden Koaxialverbinder und einer im Bereich des steckseitigen Endes 14 angeordneten Isolierstoffscheibe 16 zum Stützen des Innenleiters 12. Der lediglich beispielhaft in Fig. 1 dargestellte Koaxialverbinder ist vom Typ 7/16, d.h. der Außendurchmesser d des Innenleiters 12 hat für Luft als Dielektrikum einen Wert von ca. 7 mm, und der Innendurchmesser D des Außenleiters hat für Luft als Dielektrikum einen Wert von ca. 16 mm. Hierdurch ergibt sich mit Luft als Dielektrikum ein Wellenwiderstand ZL von 50 Ω. Da im Bereich der Isolierstoffscheibe 16 ein anderer Werkstoff als Luft zwischen dem Innenleiter 12 und dem Außenleiter 10 vorhanden ist, muß in diesem Bereich der Außendurchmesser des Innenleiters 12 und somit eine Bohrung 18 in der Isolierstoffscheibe 16 zum Durchführen des Innenleiters 12 einen bezüglich d, also bezüglich 7 mm verringerten Durchmesser aufweisen.The coaxial connector shown in FIG. 1 is a 7/16 coaxial connector with an outer conductor 10, a pin-shaped inner conductor 12 arranged coaxially therewith, a plug end 14 for connecting to a corresponding coaxial connector and an insulating disk 16 arranged in the region of the plug end 14 for support of the inner conductor 12. The coaxial connector shown only by way of example in FIG. 1 is of the type 7/16, ie the outer diameter d of the inner conductor 12 has a value of approx. 7 mm for air as a dielectric and the inner diameter D of the outer conductor has for air as Dielectric value of approx. 16 mm. This results in a wave resistance Z L of 50 Ω with air as the dielectric. Since a material other than air is present in the area of the insulating material disk 16 between the inner conductor 12 and the outer conductor 10, the outer diameter of the inner conductor 12 and thus a bore 18 in the insulating material disk 16 for carrying out the inner conductor 12 must have a d, that is to say, in this area have a diameter reduced by 7 mm.

Erfindungsgemäß weist auch derjenige Teil des Innenleiters 12, welcher in Richtung des steckseitigen Endes 14 aus der Bohrung 18 der Isolierstoffscheibe 16 herausragt, einen entsprechend verringerten Durchmesser auf. Die Isolierstoffscheibe 16 ist in Richtung des steckseitigen Endes 14 derart ausgebildet, daß ein zusätzliches Dielektrikum 20 den Innenleiter 12 bis zu einem Interface 22 des Innenleiters 12 überdeckt. Das Interface 22 des Innenleiters 12 bezeichnet hierbei diejenige Ebene, in der der Innenleiter eines Koaxialverbinders an dem Innenleiter eines entsprechend anderen eingesteckten Koaxialverbinders anschlägt. In der in Fig. 1 dargestellten Ausführungsform würde an dem Interface 22 eine entsprechende Stirnseite des buchsenförmigen Innenleiters eines Koaxialkupplers anschlagen.According to the invention, that part of the inner conductor 12 which points in the direction of the plug end 14 from the bore 18 of the insulating disk 16 protrudes, a correspondingly reduced diameter. The insulating washer 16 is designed in the direction of the plug end 14 such that a additional dielectric 20 the inner conductor 12 to an interface 22 of the inner conductor 12 covered. The interface 22 of the inner conductor 12 denotes here the level in which the inner conductor of a coaxial connector on the inner conductor of a correspondingly inserted coaxial connector. In the in 1 would be a corresponding at the interface 22 Attach the face of the socket-shaped inner conductor of a coaxial coupler.

Dementsprechend bildet die Anschlagebene zwischen den Außenleitern zweier zusammengesteckter Koaxialverbinder ein Interface des Außenleiters, wobei dieses Interface eine Ebene definiert, welche auch als elektrische und mechanische Referenzebene 24 bezeichnet wird. Gemäß der DIN-Norm 47 223 überragt beim Koaxialstecker die Interfaceebene 22 des Innenleiters 12 die elektrische und mechanische Referenzebene 24 um 1,77 mm. Ferner überragt beim Koaxialkuppler die elektrische und mechanische Referenzebene 24 die Interfaceebene 22 des Innenleiters 12 um 1,77 mm (vgl. Fig. 2).Accordingly, the stop plane between the outer conductors forms two assembled coaxial connector an interface of the outer conductor, this Interface defines a level, which is also called electrical and mechanical Reference plane 24 is designated. In accordance with DIN standard 47 223, the Coaxial connector, the interface level 22 of the inner conductor 12, the electrical and mechanical Reference plane 24 by 1.77 mm. Also stands out with the coaxial coupler the electrical and mechanical reference level 24 the interface level 22 of the Inner conductor 12 by 1.77 mm (see FIG. 2).

Der Koaxialstecker umfaßt ferner eine Überwurfmutter 26, einen O-Ring 28 zum Abdichten zwischen der Isolierstoffscheibe 16 und dem Außenleiter 10, ein Isolierteil 30 im Bereich der Kabeleinführung, ein Gehäuse 32, eine Dichtung 34 zur Gehäuseabdichtung, einen Klemmring 36 für den Außenleiter eines einzuführenden Kabels, eine Dichtungsmasse 38, eine Aufnahme 40 für die Dichtungsmasse, eine Stopfbuchse 42 und einen O-Ring 43 zur Abdichtung im Bereich der Überwurfmutter 26.The coaxial connector also includes a union nut 26, an O-ring 28 for Sealing between the insulating material disc 16 and the outer conductor 10, an insulating part 30 in the area of the cable entry, a housing 32, a seal 34 for Housing seal, a clamping ring 36 for the outer conductor of an insert Cable, a sealant 38, a receptacle 40 for the sealant, a stuffing box 42 and an O-ring 43 for sealing in the area of the union nut 26.

Zum Haltern der Isolierstoffscheibe 16 in dem steckseitigen Ende 14 des Koaxialverbinders ist ein Einpreßring 44 vorgesehen, welcher gleichzeitig zwischen der Isolierstoffscheibe 16 und der elektrischen und mechanischen Referenzebene 24 den Außenleiter bildet.For holding the insulating material disk 16 in the plug-side end 14 of the coaxial connector a press ring 44 is provided, which at the same time between the Isolierstoffscheibe 16 and the electrical and mechanical reference plane 24th forms the outer conductor.

Bei der in Fig. 2 dargestellten Ausführungsform ist der Koaxialverbinder als 7/16-Koaxialkuppler mit buchsenförmigem Innenleiter 12 ausgebildet. Im Gegensatz zum Stecker gemäß Fig. 1 ist der Innenleiter 12 buchsenförmig ausgebildet, wobei durch entsprechende axiale Schlitze im steckseitigen Ende des Innenleiters 12 eine Spannzange 46 mit entsprechenden Segmenten ausgebildet ist. Wie sich aus Fig. 2 sofort anschaulich ergibt, liegt die Besonderheit des dargestellten Koaxialkupplers darin, daß das zusätzliche Dielektrikum 20 auch die Spannzangensegmente 46 überdeckt, so daß das zusätzliche Dielektrikum 20 eine Abstützung für diese Spannzangensegmente 46 bildet. Somit führt auch ein nicht exakt fluchtendes Einstecken des Koaxialsteckers gemäß Fig. 1 in den Koaxialkuppler gemäß Fig. 2 nicht zu einem Verbiegen oder gar Abbrechen der Spannzangensegmente 46, da diese von dem zusätzlichen Dielektrikum 20 gestützt werden.In the embodiment shown in FIG. 2, the coaxial connector is a 7/16 coaxial coupler formed with socket-shaped inner conductor 12. In contrast 1, the inner conductor 12 is socket-shaped, wherein through corresponding axial slots in the plug-side end of the inner conductor 12 a collet 46 is formed with corresponding segments. How out Fig. 2 immediately shows clearly, is the special feature of the coaxial coupler shown in that the additional dielectric 20 also the collet segments 46 covers, so that the additional dielectric 20 is a support for this forms collet segments 46. Thus, a not exactly aligned leads Insert the coaxial connector according to FIG. 1 into the coaxial coupler Fig. 2 not to bend or even break the collet segments 46, since these are supported by the additional dielectric 20.

Wie sich weiterhin aus Fig. 2 ergibt, überragt beim Koaxialkuppler die elektrische und mechanische Referenzebene 24 die Interfaceebene 22 des Innenleiters 12 um 1,77 mm. Ferner sind kein Einpreßring 44 und keine Überwurfmutter 26 vorgesehen. Statt dessen ist am steckseitigen Ende 14 ein Gehäuseaußenteil 48 mit Gewinde 50 ausgebildet.As can further be seen from FIG. 2, the electrical one towers over the coaxial coupler and mechanical reference plane 24 the interface plane 22 of the inner conductor 12 by 1.77 mm. Furthermore, no press ring 44 and no union nut 26 are provided. Instead, an outer housing part 48 is provided at the plug-side end 14 Thread 50 formed.

In Fig. 3 und Fig. 4 ist ein erfindungsgemäß ausgebildeter Koaxialkuppler einem erfindungsgemäß ausgebildeten Koaxialstecker gegenübergestellt. In der Interfaceebene 22 treffen die jeweiligen zusätzlichen Dielektrika 20, welche den jeweiligen Innenleiter 12 umhüllen, aufeinander. In der elektrischen und mechanischen Bezugsebene 24 treffen die jeweiligen Außenleiter 10 von Kuppler und Stecker aufeinander. Wie sich insbesondere aus Fig. 4 ergibt, ist zum Aufrechterhalten eines konstanten Wellenwiderstandes Z L von 50 Q keinerlei Kompensation oder Sprung im Bereich des Außenleiters oder im Bereich der elektrischen und mechanischen Referenzebene 24 erforderlich.3 and 4, a coaxial connector designed according to the invention is compared with a coaxial connector designed according to the invention. The respective additional dielectrics 20, which envelop the respective inner conductor 12, meet in the interface level 22. The respective outer conductors 10 of coupler and plug meet in the electrical and mechanical reference plane 24. As can be seen in particular from FIG. 4, no compensation or jump in the area of the outer conductor or in the area of the electrical and mechanical reference plane 24 is required to maintain a constant wave resistance Z L of 50 Q.

Fig. 5 veranschaulicht einen erfindungsgemäß ausgebildeten 7/16-Koaxialstecker, welcher mit einem herkömmlich gemäß DIN-Norm 47 223 ausgebildeten Koaxialkuppler zusammengesteckt ist. Hierbei erfolgt der Übergang zwischen den Außenleitern von Stecker und Kuppler in der elektrischen und mechanischen Referenzebene 24 ohne jeden Sprung und ohne jede Kompensationsmaßnahme. Somit ist der erfindungsgemäß ausgebildete Koaxialstecker vollständig kompatibel zu herkömmlichen, gemäß der DIN-Norm 47 223 ausgebildeten Koaxialkupplern. Dies trifft selbstverständlich auch umgekehrt für Koaxialkuppler bezüglich normgemäß ausgebildeten Koaxialsteckern zu. Dadurch, daß keinerlei Kompensationsmaßnahmen oder Sprünge im Außenleiterbereich, d.h. in der mechanischen und elektrischen Referenzebene 24, erforderlich sind, ergibt sich trotz der nicht normgerechten Ausmaße des Innenleiters eine nicht wesentlich reduzierte Grenzfrequenz für diese Steckverbindungen. Dies ist vor allem auch unabhängig davon, ob ein erfindungsgemäßer Verbinder, sei es Stecker oder Kuppler, mit einem normgerecht ausgebildeten Verbinder, sei es Stecker oder Kuppler, zusammengefügt wird. Ferner ergibt sich durch die erfindungsgemäße Ausbildung des Koaxialkupplers eine größere Handhabungssicherheit, da die in ihrer Wandstärke verringerten Spannzangensegmente, wie bereits zuvor erläutert, nicht mehr der Gefahr unterliegen abzubrechen. 5 illustrates a 7/16 coaxial connector designed according to the invention, which with a conventionally designed according to DIN standard 47 223 coaxial coupler is put together. The transition between the outer conductors takes place here of connectors and couplers in the electrical and mechanical reference plane 24 without any jump and without any compensation measure. Consequently the coaxial connector designed according to the invention is fully compatible with conventional coaxial couplers designed according to DIN standard 47 223. Of course, this also applies vice versa for coaxial couplers with regard to standards trained coaxial connectors. Because no compensation measures or jumps in the outer conductor area, i.e. in the mechanical and electrical reference plane 24, are required, despite that dimensions of the inner conductor conforming to standards, a not significantly reduced cut-off frequency for these connectors. Above all, this is independent of whether a connector according to the invention, be it plug or coupler, with one standard trained connectors, be it connectors or couplers, put together becomes. Furthermore, the design of the coaxial coupler according to the invention results greater handling safety, since the reduced wall thickness Collet segments, as previously explained, are no longer at risk subject to cancel.

Wie insbesondere aus den Fig. 3 bis 5 ersichtlich, ist zusätzlich zur Abdichtung in der Bohrung 18 der Isolierstoffscheibe 16 ein O-Ring angeordnet.As can be seen in particular from FIGS. 3 to 5, in addition to the seal in the bore 18 of the insulating disk 16 an O-ring arranged.

Claims (8)

  1. Coaxial connector with an external conductor (10), an internal conductor (12) arranged coaxially therewith, a ratio of d/D of external diameter d of the internal conductor to internal diameter D of the external conductor such that a predetermined characteristic impedance ZL according to the wave equation
    Figure 00110001
    results, a cable-end for connecting to a coaxial cable, a plugend (14) for connecting to a corresponding coaxial connector and an insulator disk (16) arranged in the region of the plug-end (14) for supporting the internal conductor (12), whereby for equalising the dielectric properties of the insulator disk (16), the disk having a bore (18) for guiding the internal conductor (12) through has a diameter reduced relative to d, such that the predetermined characteristic impedance ZL prevails also in the region of the insulator disk (16), characterised in that the internal conductor (12) has an external diameter projecting beyond the insulator disk (16) in the direction of the plug, which corresponds to the reduced internal diameter of the bore (18) of the insulator disk (16), and that the internal conductor (12) is surrounded by an additional dielectric (20) extending from the insulator disk (16) in the direction of the plug as far as a plug interface (22) of the internal conductor (12), whose radial thickness is so chosen according to its dielectric constant ε that the predetermined characteristic impedance ZL results in accordance with the wave equation.
  2. Coaxial connector according to Claim 1, characterised in that it is a coaxial plug with pin-shaped internal conductor (12).
  3. Coaxial connector according to Claim 2, characterised in that in the plug-end (14) the external connector (10) starting from the insulator disk (16) as far as an electrical and mechanical reference plane (24) formed by an external conductor interface is formed by means of a metal ring (44), particularly press-in ring.
  4. Coaxial connector according to Claim 1, characterised in that it is a coaxial coupler with socket-shaped internal conductor (12).
  5. Coaxial connector according to Claim 4, characterised in that the socket-shaped internal connector (12) is made chuckshaped in the region of its plug interface (22) by means of axial slits (46) distributed radially over its circumference.
  6. Coaxial connector according to Claim 1, characterised in that it is a 7/16 coaxial connector, whereby D has a value of approximately 16 mm and d a value of approximately 7 mm and the predetermined characteristic impedance ZL = 50 Ω.
  7. Coaxial connector according to Claim 6, characterised in that the 7/16 coaxial connector is a 7/16 coaxial coupler or a 7/16 coaxial plug.
  8. Coaxial connector according to Claim 1, characterised in that the dielectric (20) surrounding the internal conductor (12) is formed in one piece with the insulator disk (16) and of the same material as the insulator disk (16), whereby the dielectric (20) only partially fills the space between internal conductor (12) and external conductor (10), particularly less than half.
EP00108198A 1999-04-22 2000-04-13 Coaxial connector Expired - Lifetime EP1047156B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29907173U 1999-04-22
DE29907173U DE29907173U1 (en) 1999-04-22 1999-04-22 Coaxial connector

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EP1047156A1 EP1047156A1 (en) 2000-10-25
EP1047156B1 true EP1047156B1 (en) 2001-11-14

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US (1) US6396367B1 (en)
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AT (1) ATE208964T1 (en)
CA (1) CA2306302C (en)
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Also Published As

Publication number Publication date
CA2306302C (en) 2009-01-13
US6396367B1 (en) 2002-05-28
CA2306302A1 (en) 2000-10-22
EP1047156A1 (en) 2000-10-25
DE29907173U1 (en) 1999-10-07
ATE208964T1 (en) 2001-11-15
DE50000037D1 (en) 2001-12-20

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