EP0074478B1 - Flange-type connection for rectangular wave guides - Google Patents

Flange-type connection for rectangular wave guides Download PDF

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Publication number
EP0074478B1
EP0074478B1 EP82106558A EP82106558A EP0074478B1 EP 0074478 B1 EP0074478 B1 EP 0074478B1 EP 82106558 A EP82106558 A EP 82106558A EP 82106558 A EP82106558 A EP 82106558A EP 0074478 B1 EP0074478 B1 EP 0074478B1
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EP
European Patent Office
Prior art keywords
flange
waveguide
piece
waveguides
type connection
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
EP82106558A
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German (de)
French (fr)
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EP0074478A1 (en
Inventor
Joachim Dipl.-Ing. Flacke
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.)
Dornier System GmbH
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Dornier System GmbH
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Filing date
Publication date
Application filed by Dornier System GmbH filed Critical Dornier System GmbH
Publication of EP0074478A1 publication Critical patent/EP0074478A1/en
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Publication of EP0074478B1 publication Critical patent/EP0074478B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/04—Fixed joints
    • H01P1/042—Hollow waveguide joints

Definitions

  • the invention relates to a flange connection for rectangular waveguide tubes.
  • Waveguides are used to transmit high-frequency electromagnetic waves with frequencies greater than 1 GHz.
  • Several waveguide tubes must be connected to each other for longer transmission distances.
  • the simplest connection is the flanges-free flanging of the pipes.
  • the flanges are plates with screw bushings.
  • these flanges are placed on top of one another in alignment and firmly connected with screws.
  • Another possibility is the “choke-flange” connection, in which the pipes do not touch each other, but in which the flanges touch on the outside, and on the inside have a recess d of thickness d, which is small compared to the wavelength J.
  • Two ⁇ / 4 lines are required to establish the connection.
  • the flanges are round and form the two lines through a circular groove in a flange and through the distance d between the two flanges.
  • the two ⁇ / 4 lines are perpendicular to each other.
  • Such flange connections are used in space travel when antennas have to be extended by remote control.
  • the individual waveguides are folded together during the flight. They are folded together for operation in orbit.
  • Disadvantages are the large overall height of the round flanges, which do not allow the individual waveguides to be folded in a confined space, and their relatively high weight due to their size. In space travel, however, components are required that are light in weight and can be stowed in the smallest space.
  • flange connections which have a rectangular cross-section, the one flange piece being provided with i / 4 lines which are embedded on both sides of the waveguide broad sides in the end face of the flange piece and which are formed parallel to the waveguide broad sides , whose groove depth extending in the axial direction of the direction of the waveguide is ⁇ / 4.
  • the end face of the same flange piece is provided in the entire area over the flange width between the groove edge closest to the waveguide and the wide waveguide inner edge with a recess of shallow depth, which forms a gap of length ⁇ / 4 when the counter flange is tightly fitted in the parting plane of the narrow waveguide side. which continues in the gap ⁇ / 4 formed by the groove.
  • Disadvantages are the still relatively high overall height of the flanges and the requirement for an exact abutment, which requires an equally precise guidance in the hinges.
  • a waveguide flange connection is known in which a slot (P) parallel to the longitudinal direction of the waveguide is provided.
  • the parallel guidance of the slot (P) permits a very narrow construction of the flange, but does not allow folding about an axis that runs close to the flange part, and thus no compact stowage of the flange parts.
  • shock-free waveguide connections which have contact surfaces.
  • a / 2 lines are provided at the joints.
  • an A / 2 sack is shown folded either 90 ° C or 180 ° C.
  • the width of the flange is reduced, in particular in the case of the solution which is bent by 180 °.
  • folding around the axis, which is attached close to the flange is not possible. This flange is therefore also not suitable for compact stowage.
  • the invention has for its object to provide a flange connection for rectangular waveguide tubes, which has good transmission properties, is light, easy to use and allows compact storage of the waveguide due to small cross-sectional dimensions.
  • the advantages of the invention are the low overall height, which enables the individual tubes to be compactly folded together, the good transmission properties (attenuation ⁇ 0.05 dB with C-band waveguides) and the full functionality even when inexactly folded together mm).
  • Fig. 1 shows a flange connection according to the invention seen in section from the narrow side. It connects the two rectangular waveguide tubes 1 and 2, which have the narrow side width b, via the two flanges 3 and 4.
  • the flanges do not touch on the outside.
  • the two A / 4 lines required for the short-circuit transformation are formed by the groove-shaped recess 5 and the gap 8.
  • a short circuit is transformed into an open circuit by the first ⁇ / 4 line 5 (line with high characteristic impedance).
  • the second ⁇ / 4 line 8 transforms the open circuit into a short circuit (line with low characteristic impedance).
  • the spacing is done on known Way in the hinge (not shown) or by stops outside the flange.
  • the overall height of the flange is minimal due to the design selected here.
  • the pipes can be folded up tightly for transport using a hinge (not shown here).
  • the narrow sides of the flange are not given a special shape.
  • the slot 5, 8 occurring there does not affect the field.
  • the increase in the slopes 9 and 10 is chosen so that the waveguide can be folded from the packaged state into the operational state and the height of the entire arrangement is minimal.

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  • Waveguides (AREA)
  • Waveguide Connection Structure (AREA)

Description

Die Erfindung betrifft eine Flanschverbindung für rechteckige Hohlleiterrohre.The invention relates to a flange connection for rectangular waveguide tubes.

Hohlleiter werden zur Übertragung von hochfrequenten elektromagnetischen Wellen mit Frequenzen größer 1 GHz verwendet. Für längere Übertragungsstrecken müssen mehrere Hohlleiterrohre miteinander verbunden werden. Die einfachste Verbindung ist das luftspaltfreie Anflanschen der Rohre. Die Flansche sind Platten mit Schraubdurchführungen. Für die Verbindung zweier Hohlleiter werden diese Flansche fluchtend aufeinandergelegt und mit Schrauben fest verbunden. Eine weitere Möglichkeit ist die »choke-flange« Verbindung, bei der sich die Rohre selbst nicht berühren, bei der sich aber die Flansche außen berühren, und innen eine Ausnehmung der Dicke d, die klein gegenüber der Wellenlänge J ist, aufweisen. Für die Herstellung der Verbindung sind zwei λ/4-Leitungen notwendig. Die Flansche sind rund und bilden die beiden Leitungen durch eine kreisförmige Nut in einem Flansch und durch den Abstand d zwischen den beiden Flanschen. Die beiden λ/4-Leitungen stehen senkrecht aufeinander. Solche Flanschverbindungen werden in der Raumfahrt eingesetzt, wenn Antennen fernbedient ausgefahren werden müssen.Waveguides are used to transmit high-frequency electromagnetic waves with frequencies greater than 1 GHz. Several waveguide tubes must be connected to each other for longer transmission distances. The simplest connection is the flanges-free flanging of the pipes. The flanges are plates with screw bushings. For the connection of two waveguides, these flanges are placed on top of one another in alignment and firmly connected with screws. Another possibility is the “choke-flange” connection, in which the pipes do not touch each other, but in which the flanges touch on the outside, and on the inside have a recess d of thickness d, which is small compared to the wavelength J. Two λ / 4 lines are required to establish the connection. The flanges are round and form the two lines through a circular groove in a flange and through the distance d between the two flanges. The two λ / 4 lines are perpendicular to each other. Such flange connections are used in space travel when antennas have to be extended by remote control.

Während des Fluges sind die einzelnen Hohlleiter zusammengefaltet. Zum Betrieb im Orbit werden sie aneinandergeklappt.The individual waveguides are folded together during the flight. They are folded together for operation in orbit.

Nachteilig ist die große Bauhöhe der runden Flansche, die ein Zusammenfalten der einzelnen Hohlleiter auf engstem Raum nicht erlaubt, sowie ihr durch die Größe bedingtes relativ hohes Gewicht. Gerade in der Raumfahrt sind aber Bauteile gefordert, die ein geringes Gewicht haben und auf kleinstem Raum verstaubar sind.Disadvantages are the large overall height of the round flanges, which do not allow the individual waveguides to be folded in a confined space, and their relatively high weight due to their size. In space travel, however, components are required that are light in weight and can be stowed in the smallest space.

Aus der GB-PS 844 856 sind Flanschverbindungen bekannt, die einen rechteckförmigen Querschnitt aufweisen, wobei das eine Flanschstück mit i/4-Leitungen versehen ist, die als beiderseits der Hohlleiterbreitseiten in die Stirnfläche des Flanschstückes eingelassen und parallel zu den Hohlleiterbreitseiten verlaufende Nuten ausgebildet sind, deren sich in axialer Richtung der Richtung der Hohlleiter erstreckenden Nuttiefe λ/4 beträgt. Die Stirnfläche des gleichen Flanschstückes ist jeweils im gesamten sich über die Flanschbreite erstreckenden Bereich zwischen der dem Hohlleiter nächstliegenden Nutkante und der breiten Hohlleiterinnenkante mit einer Ausnehmung geringer Tiefe versehen, die bei in der Trennebene der Hohlleiterschmalseite dichtanliegendem Gegenflansch einen Spalt der Länge Ä/4 bildet, der sich in dem durch die Nut gebildeten Spalt der Länge λ/4 fortsetzt. Nachteilig ist die immer noch relativ große Bauhöhe der Flansche sowie das Erfordernis eines exakten Aneinanderliegens, die eine ebenso exakte Führung in den Scharnieren erfordert.From GB-PS 844 856 flange connections are known which have a rectangular cross-section, the one flange piece being provided with i / 4 lines which are embedded on both sides of the waveguide broad sides in the end face of the flange piece and which are formed parallel to the waveguide broad sides , whose groove depth extending in the axial direction of the direction of the waveguide is λ / 4. The end face of the same flange piece is provided in the entire area over the flange width between the groove edge closest to the waveguide and the wide waveguide inner edge with a recess of shallow depth, which forms a gap of length λ / 4 when the counter flange is tightly fitted in the parting plane of the narrow waveguide side. which continues in the gap λ / 4 formed by the groove. Disadvantages are the still relatively high overall height of the flanges and the requirement for an exact abutment, which requires an equally precise guidance in the hinges.

Aus G. Bondoures et al, »Circuits pour ondes guidees« Dunod, Bruxelles 1975, Seiten 131 und 132, ist eine Hohlleiterflanschverbindung bekannt, bei der ein zur Hohlleiterlängsrichtung paralleler Schlitz (P) vorgesehen ist. Die parallele Führung des Schlitzes (P) erlaubt eine sehr schmale Bauweise des Flansches, ermöglicht aber kein Klappen um eine Achse, die nahe am Flanschteil verläuft, und damit kein kompaktes Verstauen der Flanschteile.From G. Bondoures et al, "Circuits pour ondes guidees" Dunod, Bruxelles 1975, pages 131 and 132, a waveguide flange connection is known in which a slot (P) parallel to the longitudinal direction of the waveguide is provided. The parallel guidance of the slot (P) permits a very narrow construction of the flange, but does not allow folding about an axis that runs close to the flange part, and thus no compact stowage of the flange parts.

Aus H. Meinke, F. W. Gundlach »Taschenbuch der Hochfrequenztechnik« Verlag Springer Berlin 1968, Seiten 406 und 407 sind stoßfreie Hohlleiterverbindungen bekannt, die Kontaktflächen aufweisen. An den Stoßstellen sind A/2-Leitungen vorgesehen. In zwei Ausführungsformen ist ein A/2-Sack entweder um 90°C oder um 180°C geknickt gezeigt. Insbesondere bei der um 180° geknickten Lösung wird eine Breitenverminderung des Flansches erreicht. Bei dieser Ausführung ist jedoch, wie auch bei der Ausführung der vorangehenden Literaturstelle, ein Klappen um die Achse, die nahe am Flansch angebracht ist, nicht möglich. Dieser Flansch ist damit ebenfalls nicht für ein kompaktes Verstauen geeignet.From H. Meinke, F. W. Gundlach "Taschenbuch der Hochfrequenztechnik" Verlag Springer Berlin 1968, pages 406 and 407, shock-free waveguide connections are known which have contact surfaces. A / 2 lines are provided at the joints. In two embodiments, an A / 2 sack is shown folded either 90 ° C or 180 ° C. The width of the flange is reduced, in particular in the case of the solution which is bent by 180 °. In this embodiment, however, as in the embodiment of the preceding literature, folding around the axis, which is attached close to the flange, is not possible. This flange is therefore also not suitable for compact stowage.

Der Erfindung liegt die Aufgabe zugrunde, eine Flanschverbindung für rechteckige Hohlleiterrohre zu schaffen, die gute Übertragungseigenschaften hat, leicht ist, einfach handzuhaben ist und ein kompaktes Verstauen der Hohlleiter durch geringe Querschnittsabmessungen erlaubt.The invention has for its object to provide a flange connection for rectangular waveguide tubes, which has good transmission properties, is light, easy to use and allows compact storage of the waveguide due to small cross-sectional dimensions.

Diese Aufgabe wird erfindungsgemäß gelöst durch eine Flanschverbindung mit den im Patentanspruch genannten Merkmalen.This object is achieved according to the invention by a flange connection with the features mentioned in the claim.

Vorteilhaft an der Erfindung ist die geringe Bauhöhe, die ein kompaktes Zusammenklappen der einzelnen Rohre ermöglicht, die guten Übertragungseigenschaften (Dämpfung < 0,05 dB bei C-Band Hohlleitern) und die volle Funktionsfähigkeit auch bei unexaktem Aneinanderklappen mm).The advantages of the invention are the low overall height, which enables the individual tubes to be compactly folded together, the good transmission properties (attenuation <0.05 dB with C-band waveguides) and the full functionality even when inexactly folded together mm).

Die Erfindung wird anhand zweier Figuren näher erklärt:

  • Fig. 1 zeigt eine erfindungsgemäße Flanschverbindung im Schnitt,
  • Fig. 2 zeigt eine Draufsicht auf einen Flansch.
The invention is explained in more detail with the aid of two figures:
  • 1 shows a flange connection according to the invention in section,
  • Fig. 2 shows a plan view of a flange.

Die Fig. 1 zeigt eine erfindungsgemäße Flanschverbindung im Schnitt von der Schmalseite aus gesehen. Sie verbindet die beiden rechteckigen Hohlleiterrohre 1 und 2, die die Schmalseitenbreite b besitzen, über die beiden Flansche 3 und 4. Die parallel zur Hohlleitertrennebene T ausgerichteten Stirnflächen 6 und 7 liegen sich im Betrieb im Abstand d, der klein gegenüber der Wellenlänge ist, gegenüber. Die Flansche berühren sich auch außen nicht. Die zur Kurzschlußtransformation nötigen beiden Ä/ 4-Leitungen werden von der nutförmigen Aussparung 5 und dem Spalt 8 gebildet. Durch die erste Ä/4-Leitung 5 wird ein Kurzschluß in einen Leerlauf transformiert (Leitung mit hohem Wellenwiderstand). Die zweite Ä/4-Leitung 8 transformiert den Leerlauf in einen Kurzschluß (Leitung mit kleinem Wellenwiderstand).Fig. 1 shows a flange connection according to the invention seen in section from the narrow side. It connects the two rectangular waveguide tubes 1 and 2, which have the narrow side width b, via the two flanges 3 and 4. The end faces 6 and 7, which are aligned parallel to the waveguide separation plane T, lie opposite one another during operation at a distance d, which is small compared to the wavelength . The flanges do not touch on the outside. The two A / 4 lines required for the short-circuit transformation are formed by the groove-shaped recess 5 and the gap 8. A short circuit is transformed into an open circuit by the first λ / 4 line 5 (line with high characteristic impedance). The second λ / 4 line 8 transforms the open circuit into a short circuit (line with low characteristic impedance).

Die Abstandshalterung erfolgt auf bekannte Weise im Scharnier (nicht gezeigt) oder durch Anschläge außerhalb des Flansches. Durch die hier gewählte Bauart wird die Gesamthöhe des Flansches minimal, die Rohre können zum Transport mittels eines hier nicht gezeigten Scharniers eng aufeinandergeklappt werden. Die Schmalseiten des Flansches erhalten keine spezielle Form. Der dort auftretende Schlitz 5, 8 beeinflußt das Feld nicht.The spacing is done on known Way in the hinge (not shown) or by stops outside the flange. The overall height of the flange is minimal due to the design selected here. The pipes can be folded up tightly for transport using a hinge (not shown here). The narrow sides of the flange are not given a special shape. The slot 5, 8 occurring there does not affect the field.

Die Steigerung der Schrägen 9 und 10 wird so gewählt, daß ein Klappen der Hohlleiter aus dem verpackten Zustand in den betriebsbereiten Zustand möglich ist und die Höhe der gesamten Anordnung minimal ist.The increase in the slopes 9 and 10 is chosen so that the waveguide can be folded from the packaged state into the operational state and the height of the entire arrangement is minimal.

Die Fig. 2 zeigt eine Draufsicht auf die Stirnseite des Flansches 3 mit dem Rohr 1 (schwarz eingezeichnet), den Schrägen 9, den Nuten 5 und den äußeren Nutkanten 11.2 shows a top view of the end face of the flange 3 with the tube 1 (shown in black), the bevels 9, the grooves 5 and the outer groove edges 11.

Claims (1)

  1. Flange-type connection for rectangular waveguide, one flange-piece being provided with 1/ 4-conductors, which are formed as slots which are on both sides of the waveguides broadsides imbeded in the front of the flange piece and running parallel to the waveguides broadsides, whose slot depth which reaches in axial direction is A/4, and the other 2/4-conductors are being formed by slits between the fronts of the flange pieces, which develop respectively within the total range between the slot edge closest to the waveguide and the wide waveguide running edge, that reaches across the width of the flange, it the flange pieces are in the right position, thereby characterized that the planes (9) of the fronts of the flange piece (3) within the range of the slits (8) and the waveguide junction (T) enclose an acute angle in such a way, that the cross sectional dimension of the flange piece (3) increases constantly in direction of the waveguide narrow side with growing distance of the cross sectional planes from the waveguide junction (T) on both sides of the waveguide axis (A), so that a counter flange piece (4) formed correspondingly mirror symmetrical is provided and that the flanges (3, 4) don't touch when in operating position, but that there remains a slit of defined width (d) between the inner front piece arranged parallel to the waveguide junction (T) of both flange pieces (3, 4) and between the outer slot edges (11) and the counter flange (4).
EP82106558A 1981-08-22 1982-07-21 Flange-type connection for rectangular wave guides Expired EP0074478B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3133362 1981-08-22
DE19813133362 DE3133362C2 (en) 1981-08-22 1981-08-22 Choke flange connection for rectangular waveguides

Publications (2)

Publication Number Publication Date
EP0074478A1 EP0074478A1 (en) 1983-03-23
EP0074478B1 true EP0074478B1 (en) 1985-12-04

Family

ID=6139955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106558A Expired EP0074478B1 (en) 1981-08-22 1982-07-21 Flange-type connection for rectangular wave guides

Country Status (3)

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EP (1) EP0074478B1 (en)
DE (1) DE3133362C2 (en)
ES (1) ES281693Y (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3426565A1 (en) * 1984-07-19 1986-01-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Contact-free connection for planar leads
DE3727198C1 (en) * 1987-08-14 1989-03-02 Georg Dr-Ing Spinner Connection element for waveguide
US6392510B2 (en) * 1999-03-19 2002-05-21 Lockheed Martin Corporation Radio frequency thermal isolator
WO2018175392A1 (en) 2017-03-20 2018-09-27 Viasat, Inc. Radio-frequency seal at interface of waveguide blocks
CN111342171B (en) * 2020-02-27 2021-05-07 西北工业大学 Non-contact waveguide flange

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR964175A (en) * 1950-08-08
GB844856A (en) * 1956-09-04 1960-08-17 Ici Ltd Wave-guide choke couplings
GB902128A (en) * 1959-08-19 1962-07-25 Decca Ltd Improvements in or relating to waveguide couplings
DE1441813B2 (en) * 1964-07-18 1972-02-24 Philips Patentverwaltung Gmbh, 2000 Hamburg FROM AT LEAST TWO PARTS ASSEMBLED WAVE LADDER
DE2262928C3 (en) * 1972-12-22 1979-04-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Bake-out, exchangeable rectangular waveguide welded or soldered connection

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
G. Boudouris et P. Chenevier "Circuits pour ondes guidées" Dunod, Bruxelles 1975, S. 131, 132 *
Taschenbuch der Hochfrequenztechnik, H. Meinke, F.W. Grundlach, 1968,S.406-407 *

Also Published As

Publication number Publication date
DE3133362C2 (en) 1983-12-01
ES281693Y (en) 1985-11-16
DE3133362A1 (en) 1983-03-10
EP0074478A1 (en) 1983-03-23
ES281693U (en) 1985-04-16

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