EP0015448A1 - Fenêtre haute-fréquence, étanche au vide, dans une ligne coaxiale, particulièrement destinée aux tubes à propagation d'ondes - Google Patents

Fenêtre haute-fréquence, étanche au vide, dans une ligne coaxiale, particulièrement destinée aux tubes à propagation d'ondes Download PDF

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Publication number
EP0015448A1
EP0015448A1 EP80100867A EP80100867A EP0015448A1 EP 0015448 A1 EP0015448 A1 EP 0015448A1 EP 80100867 A EP80100867 A EP 80100867A EP 80100867 A EP80100867 A EP 80100867A EP 0015448 A1 EP0015448 A1 EP 0015448A1
Authority
EP
European Patent Office
Prior art keywords
coaxial line
input
output
hollow cylinder
window arrangement
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.)
Withdrawn
Application number
EP80100867A
Other languages
German (de)
English (en)
Inventor
Franz Dr. Dipl.-Ing. Gross
Gerit Böhme
Wolf Wiehler
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
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 EP0015448A1 publication Critical patent/EP0015448A1/fr
Withdrawn legal-status Critical Current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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
    • H01J23/48—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/08—Dielectric windows

Definitions

  • the invention relates to a vacuum-tight, high-frequency-permeable window arrangement between an input-side and an output-side coaxial line, in particular for traveling wave tubes.
  • a gas-tight, radio-frequency-permeable window arrangement in a coaxial line, in particular for traveling wave tubes in which a dielectric support is provided, through which the inner conductor of the coaxial line is passed with an outer diameter that is smaller than the normal one Inner conductor diameter in the coaxial line, but larger than that necessary for an adaptation of the wave resistance of the bushing to the wave resistance of the line in the area of the support smaller inner conductor diameter.
  • the inner conductor is conically thickened on both sides of the support in the direction of the support.
  • the dielectric support e.g. can consist of ceramic material, disc-shaped, so that relatively high dielectric losses can occur in particular in high-performance tubes and the associated thermal load on the dielectric support can lead to their damage.
  • the invention is therefore based on the object of providing a vacuum-tight, radio-frequency-permeable window arrangement which is particularly suitable for high-performance traveling wave tubes.
  • a ceramic hollow cylinder is arranged between the input-side coaxial line and the output-side coaxial line, which the inner conductor of the input-side coaxial line in the area of the transition to the output-side coaxial line as a continuation of Surrounds outer conductor of the input-side coaxial line.
  • the output-side end face of the ceramic hollow cylinder is preferably provided with a membrane made of metal, which is connected gas-tight to the inner conductor of the input-side coaxial line and the inner conductor of the output-side coaxial line. It is particularly advantageous if the membrane faces away from the end face of the ceramic hollow cylinder on the side with a ceramic counter ring.
  • annular metallic adapter element on the inside of an outer jacket flanged to the outer conductor of the input-side coaxial line, is provided, which coaxially surrounds the ceramic hollow cylinder.
  • the invention has the advantage that even with high-performance traveling wave tubes, the dielectric losses in the radio-frequency-permeable window are kept so low that excessive thermal stress and thus cracking or leaking of the window is avoided.
  • the output power decoupled from the delay line of the amplifier, not shown, is via the input-side coaxial line 4, 5 fed to the window arrangement.
  • the window arrangement consists of a ceramic hollow cylinder 1, one end face of which is soldered to the flange 6. The other end face is soldered to the membrane 3 with the ceramic counter ring 2.
  • the inner conductor 7 of the output-side coaxial line 7, 8 leading to the consumer is also connected to the membrane 3.
  • a cylindrical element 4 ', a conical element 4 "and a thin pin 4"' are screwed onto the inner conductor 4, which together with the adapter element 7 adapt the window arrangement to the coaxial connecting lines without reflection over a broad frequency band (r ⁇ 10% more than 30% bandwidth).
  • the inner conductor 4 is expediently very thin at the point 4 ''', so that the membrane 3 does not become too stiff and can yield when the inner conductor 4 exerts a force on the membrane 3 due to thermal expansion.
  • the window arrangement is easy to manufacture and mechanically and thermally stable. This is preferably achieved in that the ceramic hollow cylinder 1 is soldered into copper on both sides. To improve the strength, a material of similar thermal expansion to A1 2 0 3 , for example Vacon, is soldered on the side of the flange 6 as the outer conductor 5 of the coaxial line 4, 5. For the same reason, a ceramic counter ring 2 is soldered on the side of the membrane 3. If the thermal load is very high, cooling of the outer jacket 9 is recommended, for example water cooling, which can be implemented in a simple manner.
  • FIGS. 2 and 3 The basic arrangement of the exemplary embodiments shown in FIGS. 2 and 3 is the same as for the embodiment shown in Fig. 1.
  • Two exemplary embodiments are shown in FIG.
  • the ceramic hollow cylinder 1 is soldered vacuum-tight on one side to a vacuum socket 13, 5, 8, which is adapted to its dimensions, and on the other side via a ductile copper disc 12 to the connection element 7, which also consists of Vacon 4 is soldered into the soft copper disk 12.
  • the ceramic hollow cylinder 1 is soldered on both sides to vacuum turning parts 13, 8 and 7.
  • the inner conductor 4 is soldered directly to the connection element 7, which consists of Vacon.
  • the ceramic hollow cylinder 1 is soldered on one side to the solid Vacon socket 13 and on the other side to a thin Vacon disk 11.
  • the inner conductor 4 is soldered into this disk.
  • a contact spring 10 is attached after the tube has been heated.
  • Gold or silver solders can be used as the solder; in the exemplary embodiments according to FIGS. 2 and 3 also pure copper.
  • the invention is not restricted to the exemplary embodiments shown.
  • the inner conductor 4 shown in FIG. 1 can also have cylindrical transformation elements instead of the conical design.

Landscapes

  • Waveguide Connection Structure (AREA)
  • Microwave Tubes (AREA)
EP80100867A 1979-02-28 1980-02-21 Fenêtre haute-fréquence, étanche au vide, dans une ligne coaxiale, particulièrement destinée aux tubes à propagation d'ondes Withdrawn EP0015448A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792907808 DE2907808A1 (de) 1979-02-28 1979-02-28 Vakuumdichte, hochfrequenzdurchlaessige fensteranordnung in einer koaxialleitung, insbesondere fuer wanderfeldroehren
DE2907808 1979-02-28

Publications (1)

Publication Number Publication Date
EP0015448A1 true EP0015448A1 (fr) 1980-09-17

Family

ID=6064105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100867A Withdrawn EP0015448A1 (fr) 1979-02-28 1980-02-21 Fenêtre haute-fréquence, étanche au vide, dans une ligne coaxiale, particulièrement destinée aux tubes à propagation d'ondes

Country Status (3)

Country Link
US (1) US4297662A (fr)
EP (1) EP0015448A1 (fr)
DE (1) DE2907808A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523127A (en) * 1983-02-02 1985-06-11 Ga Technologies Inc. Cyclotron resonance maser amplifier and waveguide window
GB2152274B (en) * 1984-01-04 1987-12-23 England Electric Valve Company Coupling a discharge tube output to a waveguide
DE3427283A1 (de) * 1984-07-24 1986-01-30 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Hohlleiterelement fuer mikrowellen
US4700159A (en) * 1985-03-29 1987-10-13 Weinschel Engineering Co., Inc. Support structure for coaxial transmission line using spaced dielectric balls
DE3617779A1 (de) * 1986-05-27 1987-12-03 Max Planck Gesellschaft Fluiddichte kopplungsvorrichtung fuer mikrowellenstrahlung
US5061912A (en) * 1990-07-25 1991-10-29 General Atomics Waveguide coupler having opposed smooth and opposed corrugated walls for coupling HE1,1 mode
FR2792082B1 (fr) 1999-04-06 2003-05-30 Thomson Csf Dispositif d'holographie numerique
CN113539767A (zh) * 2021-07-16 2021-10-22 中国电子科技集团公司第十二研究所 一种用于行波管的同轴输能结构及行波管
CN114147357B (zh) * 2021-12-20 2023-12-01 中国科学院空天信息创新研究院 用于行波管的输出窗及其制备方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006913B (de) * 1953-02-28 1957-04-25 Elektronik Ges Mit Beschraenkt Magnetronroehre mit Topfkreis
US2903614A (en) * 1957-02-11 1959-09-08 Eitel Mccullough Inc Envelope structures for electron tubes
DE1100719B (de) * 1956-08-16 1961-03-02 Varian Associates Vorrichtung zum Ankoppeln einer Hohlraumresonatorroehre an eine seitlich angesetzte Koaxialleitung
FR1260652A (fr) * 1960-03-29 1961-05-12 Csf Sortie coaxiale pour tubes haute fréquence avec joint étanche en céramique
FR1275343A (fr) * 1959-12-01 1961-11-03 Thomson Houston Comp Francaise Perfectionnements aux circuits de transmission à fréquences élevées
US3065377A (en) * 1959-12-12 1962-11-20 Kenneth G Eakin Microwave generator
FR1324045A (fr) * 1961-05-29 1963-04-12 Varian Associates Circuit de sortie et fenêtres de sortie à haute fréquence
GB925451A (en) * 1960-07-08 1963-05-08 Ass Elect Ind Magnetron
GB927473A (en) * 1958-07-17 1963-05-29 Varian Associates High frequency tube apparatus
US3156882A (en) * 1962-08-22 1964-11-10 Gen Electric Vacuum tight electromagnetic radiation permeable window seal
GB982806A (en) * 1962-10-22 1965-02-10 Ass Elect Ind Improvements in multi-cavity magnetrons
FR1430696A (fr) * 1965-04-14 1966-03-04 Thomson Houston Comp Francaise Perfectionnements aux fenêtres de guide d'ondes et à leur procédé de fabrication

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058073A (en) * 1959-12-01 1962-10-09 Gen Electric Transmission line windows
DE1491389B1 (de) * 1964-12-23 1971-08-26 Philips Patentverwaltung Magnetron der radbauart

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006913B (de) * 1953-02-28 1957-04-25 Elektronik Ges Mit Beschraenkt Magnetronroehre mit Topfkreis
DE1100719B (de) * 1956-08-16 1961-03-02 Varian Associates Vorrichtung zum Ankoppeln einer Hohlraumresonatorroehre an eine seitlich angesetzte Koaxialleitung
US2903614A (en) * 1957-02-11 1959-09-08 Eitel Mccullough Inc Envelope structures for electron tubes
GB927473A (en) * 1958-07-17 1963-05-29 Varian Associates High frequency tube apparatus
FR1275343A (fr) * 1959-12-01 1961-11-03 Thomson Houston Comp Francaise Perfectionnements aux circuits de transmission à fréquences élevées
US3065377A (en) * 1959-12-12 1962-11-20 Kenneth G Eakin Microwave generator
FR1260652A (fr) * 1960-03-29 1961-05-12 Csf Sortie coaxiale pour tubes haute fréquence avec joint étanche en céramique
GB925451A (en) * 1960-07-08 1963-05-08 Ass Elect Ind Magnetron
FR1324045A (fr) * 1961-05-29 1963-04-12 Varian Associates Circuit de sortie et fenêtres de sortie à haute fréquence
US3156882A (en) * 1962-08-22 1964-11-10 Gen Electric Vacuum tight electromagnetic radiation permeable window seal
GB982806A (en) * 1962-10-22 1965-02-10 Ass Elect Ind Improvements in multi-cavity magnetrons
FR1430696A (fr) * 1965-04-14 1966-03-04 Thomson Houston Comp Francaise Perfectionnements aux fenêtres de guide d'ondes et à leur procédé de fabrication

Also Published As

Publication number Publication date
US4297662A (en) 1981-10-27
DE2907808A1 (de) 1980-09-04

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): FR GB

17P Request for examination filed

Effective date: 19810303

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19830110

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GROSS, FRANZ, DR., DIPL.-ING.

Inventor name: BIBRACHER, WILHELM

Inventor name: WIEHLER, WOLF

Inventor name: BOEHME, GERIT