EP0110135B1 - Procédé pour la fabrication d'un tube à propagation d'ondes comportant une ligne à retard maintenue par des barreaux en matière diélectrique - Google Patents

Procédé pour la fabrication d'un tube à propagation d'ondes comportant une ligne à retard maintenue par des barreaux en matière diélectrique Download PDF

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Publication number
EP0110135B1
EP0110135B1 EP83110711A EP83110711A EP0110135B1 EP 0110135 B1 EP0110135 B1 EP 0110135B1 EP 83110711 A EP83110711 A EP 83110711A EP 83110711 A EP83110711 A EP 83110711A EP 0110135 B1 EP0110135 B1 EP 0110135B1
Authority
EP
European Patent Office
Prior art keywords
support rods
delay line
vacuum
line
tight sleeve
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
EP83110711A
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German (de)
English (en)
Other versions
EP0110135A1 (fr
Inventor
Wilhelm Bibracher
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 AG
Original Assignee
Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0110135A1 publication Critical patent/EP0110135A1/fr
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Publication of EP0110135B1 publication Critical patent/EP0110135B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/26—Helical slow-wave structures; Adjustment therefor

Definitions

  • the invention relates to a method for producing a traveling wave tube according to the preamble of claim 1.
  • DE-A-1 937 704 discloses a traveling wave tube with a helical delay line accommodated within a metallized vacuum tube of the tube and a number of support rods arranged parallel to one another along surface lines of the line and fixed in position in the inner cross section of the vacuum tube.
  • DE-A-2 137 795 discloses a traveling field klystron and a method for producing the traveling field klystron as known.
  • delay structures are provided in the resonator chambers, with at least the delay coils of the output-side line chambers being soldered to solid screws of good thermal conductivity on screws inserted into continuous threaded holes in the chamber walls.
  • the helix with the insulating elements soldered to it is centered by means of a centering mandrel to the axis of the resonator chamber in such a way that the insulating elements are aligned with the axes of the threaded bores, the screws with the solder rings used being in contact with the free ones in the threaded bores from the outside
  • the ends of the insulating elements are screwed in and solder material is provided at the contact points.
  • the invention has for its object to provide a less complex and easy to implement method for producing a traveling wave tube in order to optimally dissipate the heat occurring in the delay line in this tube via the mounting rods on the massive vacuum envelope.
  • Holes are made in the vacuum envelope, for. B. by drilling, punching, spark erosion or etching.
  • the diameter of the support rods which are preferably matched to the width of the ring or coil, can be inserted into the bores directly or after they have been extended by a good heat-conducting material, pushed in as far as they will go and fastened into the vacuum envelope with tension wire. Optimal heat dissipation from the delay line to the vacuum envelope is achieved.
  • the thermal expansion differences between the support rods and the vacuum envelope in contrast to known arrangements with support rods running along the delay line, cannot take effect. In addition, a better coupling resistance is achieved.
  • the delay line can be in the form of a spiral, ring-bridge or other line structure.
  • the optimal heat dissipation from the delay line to the vacuum envelope is made possible by a perfect connection, preferably a soldered connection, being carried out between the delay line and the support rods or between the support rods and the vacuum envelope. This is achieved by holding rods (insulating rods) leading radially to the delay line (so-called hedgehog technology). Depending on the performance occurring, a division of three or four can be selected.
  • the z. B. existing copper vacuum sheath (jacket tube) is pierced according to the line pitch (e.g. spiral pitch) in a three or four division.
  • the bore diameter depends on the diameter of the support rods or their extensions.
  • the holes can be made by other methods besides drilling, e.g. B. by punching, spark erosion or etching. Depending on the slope of the holes, a recess (groove) is then inserted along the vacuum envelope.
  • the mounting rods which are preferably made of aluminum oxide, beryllium oxide or diamond, are matched in diameter to the ring or spiral width of the delay line.
  • the support rods can be soldered into the vacuum sleeve directly or after they have been extended by a good heat-conducting material (e.g. copper).
  • the support rods are metallized on both sides. Mo Mg Si, TiMoCu or any other metallization process can be used for this.
  • On the metallization z. B. approximately 10 ⁇ rn copper and gold or nickel and gold, which serves as a solder.
  • the application of this layer can e.g. B. galvanically, by sputtering or another method.
  • the delay line itself can be made of tungsten, molybdenum or copper. If the delay line is made of molybdenum or tungsten, it is covered with a copper layer.
  • the delay line is expediently installed in an assembly soldering gauge. During assembly, the vacuum envelope with the centrally held delay line is vertical. Then the support rods or the support rods with extension are inserted into the holes in the vacuum envelope. If all support rods (insulating rods) are pushed up to the line stop, they should be approx. 0.1 mm above the core diameter of the threaded groove of the jacket tube (vacuum sleeve). Then at the beginning Attached tension wire with a diameter of approx. 0.2 mm is wound into the thread groove via the protruding support rods.
  • a gold-plated or copper-plated wire which has a high melting point and above all a low coefficient of expansion, ie preferably molybdenum or molybdenum alloys. Make sure that the wire is correctly pretensioned. As at the beginning, the wire is also fixed at the end. According to the tension wire, a solder wire is now wrapped in the groove. Gold-copper or gold-nickel is preferably used as the solder. The solder between the delay line and the support rod forms the gold lying between the two copper or nickel layers.
  • connection flanges and coupling and decoupling After the installation of connection flanges and coupling and decoupling, the entire structure is heated to approx. 960 ° C in the soldering furnace. Due to the small expansion of the tension wire compared to the delay line and the support rods, the system is held together during the soldering process and the soldering takes place under a certain pressure. If the amount of solder is dimensioned correctly, a slight solder fillet is formed between the delay line and the support rods, and the support rods are washed in with solder on the casing tube within the groove, including the tensioning wire.
  • This jacket tube which is soldered in a vacuum-tight manner, provides the tube shell, i.e. the vacuum envelope.
  • the jacket vacuum sleeve
  • This line tube can then be shrunk or soldered into a thin jacket tube or a line sleeve integrated into a pole piece.
  • a delay line 1 is shown, which is arranged within a solid metallic vacuum envelope 3 and is fixed by a number of dielectric support rods 2 along the central axis of the vacuum envelope 3.
  • the support rods 2 run radially to the delay line 1 and are fastened to this and to the vacuum envelope 3, preferably by soldering.
  • the support rods 2 are inserted through holes 4 in the vacuum envelope.
  • a simple support rod is designated 2a.
  • a support rod with a metallic extension is designated.
  • 2c denotes a support rod which is bluntly elongated, the metallic extension having a larger diameter.
  • the metallic extension has the same diameter as the support rod.
  • the tension wire used in the soldering process is provided with the reference number 5.
  • Fig. 2 shows a helical delay line 1, which is fixed with the radially arranged support rods 2.
  • the support rods 2, which correspond to the embodiment 2d according to FIG. 1 in this exemplary embodiment, are soldered to both the delay line 1 and the vacuum envelope 3.
  • holes 4 are provided for inserting and soldering the support rods.
  • the tension wire 5 used for the soldering process is wound in a groove provided in the vacuum envelope 3 around the outer ends of the holding rods 2.

Landscapes

  • Microwave Tubes (AREA)

Claims (6)

1. Procédé pour la fabrication d'un tube à ondes progressives, comprenant une ligne à retard disposée à l'intérieur d'une enveloppe à vide métallique massive du tube, sous forme d'une ligne hélicoïdale ou en anneaux reliés par des entretoises, de même qu'un certain nombre de barreaux diélectriques de maintien qui, en étant orientés radialement par rapport à la ligne à retard, fixent la ligne sur l'axe de l'enveloppe à vide, les barreaux étant brasés à la ligne, l'enveloppe à vide (3) étant pourvue de trous (4) traversants pour la réception des barreaux de maintien (2), caractérisé en ce que l'on enfile les barreaux de maintien (2) dans les trous (4), jusqu'à ce qu'ils viennent buter par leurs extrémités intérieures contre la ligne (1), maintenue centrée, que l'on enroule un fil de serrage (5) et un fil de brasure sur les extrémités extérieures des barreaux de maintien (2) et autour de l'enveloppe à vide (3), de manière que le fil de serrage exerce une pression radiale sur les barreaux de maintien et que, ensuite, on chauffe l'ensemble dans un four à braser, ce qui produit le brasage des barreaux de maintien (2) à l'enveloppe à vide (3).
2. Procédé selon la revendication 1, caractérisé en ce que les barreaux de maintien (2) sont en oxyde de béryllium, oxyde d'aluminium ou diamant et sont métallisés sur leurs deux faces d'extrémités.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on utilise, en tant que fil de serrage (5), un fil doré d'un matériau à haut point de fusion et faible coefficient de dilatation thermique.
4. Procédé selon une des revendications 1 à 3, caractérisé en ce que l'on forme des trous traversants (4) dans l'enveloppe à vide (3) selon le pas de la ligne à retard (1), trous dans lesquels on introduit les barreaux de maintien (2), à raison de trois ou quatre trous répartis circonférentielle- ment par spire ou par anneau de la ligne à retard.
5. Procédé selon une des revendications 1 à 4, caractérisé en ce que le diamètre des barreaux de maintien (2) correspond à la largeur des anneaux ou de l'hélice de la ligne à retard (1).
6. Procédé selon une des revendications 1 à 5, caractérisé en ce que l'on forme, par défonçage, un creux sous forme d'une rainure hélicoïdale dans la surface latérale extérieure de l'enveloppe à vide (3), suivant le pas de la ligne à retard (1), en vue de la réception du fil de serrage (5).
EP83110711A 1982-10-29 1983-10-26 Procédé pour la fabrication d'un tube à propagation d'ondes comportant une ligne à retard maintenue par des barreaux en matière diélectrique Expired EP0110135B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3240195 1982-10-29
DE19823240195 DE3240195A1 (de) 1982-10-29 1982-10-29 Wanderfeldroehre mit einer durch halterungsstaebe aus dielektrischem material fixierten verzoegerungsleitung

Publications (2)

Publication Number Publication Date
EP0110135A1 EP0110135A1 (fr) 1984-06-13
EP0110135B1 true EP0110135B1 (fr) 1988-01-27

Family

ID=6176965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110711A Expired EP0110135B1 (fr) 1982-10-29 1983-10-26 Procédé pour la fabrication d'un tube à propagation d'ondes comportant une ligne à retard maintenue par des barreaux en matière diélectrique

Country Status (2)

Country Link
EP (1) EP0110135B1 (fr)
DE (2) DE3240195A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106206218A (zh) * 2016-07-14 2016-12-07 中国电子科技集团公司第十二研究所 一种角向非对称螺旋线慢波结构及该慢波结构的制造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3053831B1 (fr) * 2016-07-07 2018-07-06 Thales Ligne de tube a ondes progressives

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE841311C (de) * 1950-05-06 1952-06-13 Telefunken Gmbh Wanderfeldroehre mit einer von der Gefaesswand distanzierten Wendel
DE845220C (de) * 1951-02-09 1952-07-31 Hellmuth Mohr Punktweise gehalterter wendelfoermiger Wellenleiter
FR1432503A (fr) * 1958-11-18 1966-03-25 Thomson Houston Comp Francaise Structure de ligne à retard
NL285205A (fr) * 1961-11-10
DE1491407A1 (de) * 1963-07-31 1970-01-15 Siemens Ag Lauffeldroehre mit einer Wendel als Verzoegerungsleitung
US3519964A (en) * 1968-07-26 1970-07-07 Microwave Ass High power slow wave circuit
DE2137795A1 (de) * 1971-07-28 1973-02-01 Siemens Ag Wanderfeldklystron
US3949263A (en) * 1974-12-20 1976-04-06 Raytheon Company Diamond brazing method for slow wave energy propagating structures
US4278914A (en) * 1979-10-18 1981-07-14 The United States Of America As Represented By The Secretary Of The Navy Diamond supported helix assembly and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106206218A (zh) * 2016-07-14 2016-12-07 中国电子科技集团公司第十二研究所 一种角向非对称螺旋线慢波结构及该慢波结构的制造方法

Also Published As

Publication number Publication date
DE3375536D1 (en) 1988-03-03
DE3240195A1 (de) 1984-05-03
EP0110135A1 (fr) 1984-06-13

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