EP0156004A1 - Tube à propagation d'ondes et son procédé de fabrication - Google Patents

Tube à propagation d'ondes et son procédé de fabrication Download PDF

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Publication number
EP0156004A1
EP0156004A1 EP84114709A EP84114709A EP0156004A1 EP 0156004 A1 EP0156004 A1 EP 0156004A1 EP 84114709 A EP84114709 A EP 84114709A EP 84114709 A EP84114709 A EP 84114709A EP 0156004 A1 EP0156004 A1 EP 0156004A1
Authority
EP
European Patent Office
Prior art keywords
wave tube
delay line
traveling wave
metal layer
tube according
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.)
Granted
Application number
EP84114709A
Other languages
German (de)
English (en)
Other versions
EP0156004B1 (fr
Inventor
Hinrich Dr. Rer. Nat. Dipl.-Phys Heynisch
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
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 AG filed Critical Siemens AG
Publication of EP0156004A1 publication Critical patent/EP0156004A1/fr
Application granted granted Critical
Publication of EP0156004B1 publication Critical patent/EP0156004B1/fr
Expired legal-status Critical Current

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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 traveling wave tube according to the preamble of claim 1.
  • Traveling wave tubes with a helical delay line accommodated within a metallic vacuum envelope are known for example from DE-PS 19 37 704.
  • a number of support rods made of dielectric material are provided which are arranged parallel to one another along surface lines of the line and have good thermal contact with the vacuum envelope.
  • the invention has for its object to provide a traveling wave tube of high performance, the delay line is characterized by very good dissipation of the heat loss and wide bandwidth.
  • the invention has the essential advantage that, by creating a double-layer (helical) delay line, one achieves that the inner layer of the The delay line is shielded against its outer jacket in such a way that the RF field strength in the interior maintains relatively high values, ie cannot be reduced by the effect of the metallic outer wall.
  • a high degree of interaction between the electron beam and the electromagnetic wave is achieved with the best possible radial heat dissipation.
  • the technology used is relatively easy and inexpensive to control.
  • a delay line 1 is shown, which is arranged within a solid metallic vacuum envelope-4.
  • the vacuum envelope 4 is preferably made of copper.
  • the delay line 1 has the shape of a spiral.
  • the core 2 of the helix consists of insulator material, preferably of aluminum oxide ceramic.
  • the core 2 is covered on the outer and inner lateral surfaces with a metal layer 3, which preferably consists of copper.
  • the inner metal layer 3 takes over the function as a delay line and the outer metal layer 3 serves as Absdhir - mung against the vacuum envelope 4.
  • a HF-field increase inside within the inner metal layer 3 ( Layer helix), ie achieved at the location of the electron beam.
  • insulating layers 5 are provided, which preferably consist of aluminum oxide ceramic and ensure radial heat dissipation.
  • the RF coupling or decoupling takes place, for example, via a coaxial waveguide 7, the inner conductor 8 of which is attached to the outside of the coil in this exemplary embodiment in such a way that a galvanic connection of the inner metal layer 3 is formed.
  • the inner conductor 8 can also be contacted only with the inner metal layer 3.
  • the vacuum envelope 4 has a spiral screwing, so that a helical structure 6 is formed, the inner surface of which is connected to the metal layer 3 on the outer surface of the distortion line 1.
  • the heat is dissipated via the metal paths of the screw-shaped structure 6 instead of the insulating layers 5 according to FIG.

Landscapes

  • Microwave Tubes (AREA)
EP84114709A 1984-02-28 1984-12-04 Tube à propagation d'ondes et son procédé de fabrication Expired EP0156004B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3407206 1984-02-28
DE19843407206 DE3407206A1 (de) 1984-02-28 1984-02-28 Wanderfeldroehre und verfahren zu deren herstellung

Publications (2)

Publication Number Publication Date
EP0156004A1 true EP0156004A1 (fr) 1985-10-02
EP0156004B1 EP0156004B1 (fr) 1989-03-08

Family

ID=6229051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114709A Expired EP0156004B1 (fr) 1984-02-28 1984-12-04 Tube à propagation d'ondes et son procédé de fabrication

Country Status (3)

Country Link
US (1) US4647816A (fr)
EP (1) EP0156004B1 (fr)
DE (2) DE3407206A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597265A1 (fr) * 1986-04-03 1987-10-16 Raytheon Co Structure de guide d'ondes helicoidale pour un tube a ondes progressives et son procede de fabrication

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173669A (en) * 1990-09-04 1992-12-22 Hughes Aircraft Company Slow-wave structure having block supported helix structure
US5231330A (en) * 1991-10-25 1993-07-27 Itt Corporation Digital helix for a traveling-wave tube and process for fabrication
US6584675B1 (en) * 2000-06-09 2003-07-01 Sunder S. Rajan Method for fabricating three dimensional traveling wave tube circuit elements using laser lithography

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519964A (en) * 1968-07-26 1970-07-07 Microwave Ass High power slow wave circuit
US3670196A (en) * 1971-02-24 1972-06-13 Raytheon Co Helix delay line for traveling wave devices
US4115721A (en) * 1977-01-07 1978-09-19 Louis E. Hay Traveling wave device with unific composite metal dielectric helix and method for forming
GB2044989A (en) * 1979-03-16 1980-10-22 Hughes Aircraft Co Helical slow-wave structure assemblies and fabrication method
EP0100996A1 (fr) * 1982-08-06 1984-02-22 Siemens Aktiengesellschaft Procédé de fabrication d'une ligne à retard hélicoidale pour des tubes à propagation d'ondes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1937704B2 (de) * 1969-07-24 1972-04-13 Siemens AG, 1000 Berlin u. 8000 München Wanderfeldroehre mit einer wendelfoermigen verzoegerungsleitung
US3691630A (en) * 1969-12-10 1972-09-19 James E Burgess Method for supporting a slow wave circuit via an array of dielectric posts
US4158791A (en) * 1977-02-10 1979-06-19 Varian Associates, Inc. Helix traveling wave tubes with resonant loss
IT1090547B (it) * 1977-10-28 1985-06-26 Elettronica Spa Tubi ad onda progressiva ad elica con schermaggio ausiliario selettivo mediante elementi conduttori applicati su supporti dielettrici
US4185225A (en) * 1978-03-24 1980-01-22 Northrop Corporation Traveling wave tube
FR2420842A1 (fr) * 1978-03-24 1979-10-19 Thomson Csf Ligne a retard, pour tube hyperfrequences, refroidie par circulation de fluide et tube hyperfrequences comportant une telle ligne
DE2838515C3 (de) * 1978-09-04 1981-11-12 Siemens AG, 1000 Berlin und 8000 München Wanderfeldröhre
DE2840782C3 (de) * 1978-09-19 1981-12-10 Siemens AG, 1000 Berlin und 8000 München Verfahren zum Herstellen einer Wanderfeldröhre mit einer wendelförmigen Verzögerungsleitung
US4422012A (en) * 1981-04-03 1983-12-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ladder supported ring bar circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519964A (en) * 1968-07-26 1970-07-07 Microwave Ass High power slow wave circuit
US3670196A (en) * 1971-02-24 1972-06-13 Raytheon Co Helix delay line for traveling wave devices
US4115721A (en) * 1977-01-07 1978-09-19 Louis E. Hay Traveling wave device with unific composite metal dielectric helix and method for forming
GB2044989A (en) * 1979-03-16 1980-10-22 Hughes Aircraft Co Helical slow-wave structure assemblies and fabrication method
EP0100996A1 (fr) * 1982-08-06 1984-02-22 Siemens Aktiengesellschaft Procédé de fabrication d'une ligne à retard hélicoidale pour des tubes à propagation d'ondes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597265A1 (fr) * 1986-04-03 1987-10-16 Raytheon Co Structure de guide d'ondes helicoidale pour un tube a ondes progressives et son procede de fabrication

Also Published As

Publication number Publication date
US4647816A (en) 1987-03-03
DE3477090D1 (en) 1989-04-13
EP0156004B1 (fr) 1989-03-08
DE3407206A1 (de) 1985-08-29

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