EP2472554A1 - Vorrichtung zur Erzeugung von Mikrowellen mit einer Kathode bei welcher jede Extremität mit einer Spannungsquelle verbunden ist - Google Patents

Vorrichtung zur Erzeugung von Mikrowellen mit einer Kathode bei welcher jede Extremität mit einer Spannungsquelle verbunden ist Download PDF

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Publication number
EP2472554A1
EP2472554A1 EP11306792A EP11306792A EP2472554A1 EP 2472554 A1 EP2472554 A1 EP 2472554A1 EP 11306792 A EP11306792 A EP 11306792A EP 11306792 A EP11306792 A EP 11306792A EP 2472554 A1 EP2472554 A1 EP 2472554A1
Authority
EP
European Patent Office
Prior art keywords
cathode
anode
longitudinal
cavities
resonant
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Withdrawn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
EP11306792A
Other languages
English (en)
French (fr)
Inventor
Jean-Pierre Brasile
Dominique Fasse
Patrick Sirot
Dominique Jousse
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.)
Thales SA
Original Assignee
Thales SA
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 Thales SA filed Critical Thales SA
Publication of EP2472554A1 publication Critical patent/EP2472554A1/de
Withdrawn legal-status Critical Current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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
    • H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
    • 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
    • H01J23/18—Resonators
    • H01J23/20—Cavity resonators; Adjustment or tuning thereof
    • H01J23/213—Simultaneous tuning of more than one resonator, e.g. resonant cavities of a magnetron
    • 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
    • H01J23/34—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
    • H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix
    • H01J25/587—Multi-cavity magnetrons
    • H01J25/593—Rising-sun magnetrons

Definitions

  • Each large cavity 52 is delimited by two fins 48 and the cylindrical body 46.
  • Each small cavity 54 is delimited inside a fin 48 by a radial opening opening facing the cathode 20.
  • the anode 22 thus presents a configuration of the type "rising sun” (in English “rising sun”). This configuration makes it possible to limit the risk of oscillations on parasitic frequencies, and thus to increase the efficiency of the device 10.
  • each large cavity 52 constitutes a resonant output cavity
  • each small resonant cavity 54 constitutes an intermediate resonant cavity.
  • the cavities 42 are arranged so that the number of intermediate cavities 54 arranged between two consecutive output cavities 52 is equal for each pair of outlet cavities 52.
  • the generation device 10 does not comprise any intermediate cavity 54, all the cavities 42 of the device 10 being outlet cavities 52.
  • the longitudinal displacement means 80, 82 preferably comprise three screw-nut systems 84 distributed around the periphery of the anode 22, around the longitudinal axis Z, so that the force is distributed in such a way that homogeneous on the movable member 72, 76.
  • the base 90 comprises a plurality of longitudinal arms 94 separated by longitudinal slots 96.
  • the arms 94 are adapted to engage in the cavities 42.
  • the slots 96 are adapted to receive the fins 48.
  • the generating device 10 further comprises a voltage source 110 between the cathode 20 and the anode 22.
  • the voltage source 110 is adapted to establish a negative potential difference between the cathode 20 and the anode 22.
  • each resonant output cavity 52 remains symmetrical with respect to the median radial plane of its output portion 52B, the efficiency of the device 10 is improved.
  • the perforated section 124 of each portion 120, 121 comprises a plurality of bars 126 extending longitudinally from one longitudinal end of the end section 122 to the end portion 122 of the other portion 120, 121.
  • Each bar 126 is connected by a first end 126a with the end portion 122 of the portion 120, 121, the second end 126b of each bar 126 being free.
  • a gap 127 is formed between the free end 126b of each bar 126 and the end portion 122 of the other portion 120, 121 of the cathode 20.

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  • Microwave Tubes (AREA)
EP11306792A 2010-12-29 2011-12-28 Vorrichtung zur Erzeugung von Mikrowellen mit einer Kathode bei welcher jede Extremität mit einer Spannungsquelle verbunden ist Withdrawn EP2472554A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005162A FR2970114B1 (fr) 2010-12-29 2010-12-29 Dispositif de generation d'ondes hyperfrequence ayant une cathode dont chaque extremite est raccordee a une source de tension

Publications (1)

Publication Number Publication Date
EP2472554A1 true EP2472554A1 (de) 2012-07-04

Family

ID=45443001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11306792A Withdrawn EP2472554A1 (de) 2010-12-29 2011-12-28 Vorrichtung zur Erzeugung von Mikrowellen mit einer Kathode bei welcher jede Extremität mit einer Spannungsquelle verbunden ist

Country Status (3)

Country Link
US (1) US20120187833A1 (de)
EP (1) EP2472554A1 (de)
FR (1) FR2970114B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2999797A1 (fr) * 2012-12-19 2014-06-20 Thales Sa Dispositif de generation d'ondes hyperfrequences a double cathodes
FR2999798A1 (fr) * 2012-12-19 2014-06-20 Thales Sa Cathode pour dispositif de generation d'ondes electromagnetiques, comprenant des regions d'emission mobiles les unes par rapport aux autres

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10192709B2 (en) * 2014-06-17 2019-01-29 Stc.Unm Relativistic magnetron using a virtual cathode
US9837240B1 (en) * 2014-06-17 2017-12-05 Stc.Unm Relativistic magnetron with no physical cathode
FR3027161B1 (fr) * 2014-10-09 2017-05-12 Centre Nat Rech Scient Procede de generation de rayonnements electromagnetiques haute puissance
JP2017111955A (ja) * 2015-12-16 2017-06-22 東芝ホクト電子株式会社 マグネトロン

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546870A (en) * 1941-10-03 1951-03-27 English Electric Valve Co Ltd High-frequency electrical oscillator
GB709129A (en) * 1951-07-13 1954-05-19 English Electric Valve Co Ltd Improvements in or relating to magnetrons
FR1572068A (de) * 1967-06-06 1969-06-20
US3870923A (en) * 1972-12-29 1975-03-11 Thomson Csf Magnetron with an improved tuning mechanism
US20070030088A1 (en) * 2005-08-04 2007-02-08 Mikhail Fuks Magnetron having a transparent cathode and related methods of generating high power microwaves
US20080246385A1 (en) * 2007-01-24 2008-10-09 Edl Schamiloglu Eggbeater transparent cathode for magnetrons and ubitrons and related methods of generating high power microwaves

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2970113B1 (fr) * 2010-12-29 2013-04-05 Thales Sa Dispositif de generation d'ondes hyperfrequence comprenant une pluralite de magnetrons

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546870A (en) * 1941-10-03 1951-03-27 English Electric Valve Co Ltd High-frequency electrical oscillator
GB709129A (en) * 1951-07-13 1954-05-19 English Electric Valve Co Ltd Improvements in or relating to magnetrons
FR1572068A (de) * 1967-06-06 1969-06-20
US3870923A (en) * 1972-12-29 1975-03-11 Thomson Csf Magnetron with an improved tuning mechanism
US20070030088A1 (en) * 2005-08-04 2007-02-08 Mikhail Fuks Magnetron having a transparent cathode and related methods of generating high power microwaves
US20080246385A1 (en) * 2007-01-24 2008-10-09 Edl Schamiloglu Eggbeater transparent cathode for magnetrons and ubitrons and related methods of generating high power microwaves

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AGAFONOV A V ET AL: "Double-sided relativistic magnetron pulsed power supply", PULSED POWER CONFERENCE, 1997. DIGEST OF TECHNICAL PAPERS. 1997 11TH I EEE INTERNATIONAL BALTIMORE, MA, USA 29 JUNE-2 JULY 1997, NEW YORK, NY, USA,IEEE, US, vol. 1, 29 June 1997 (1997-06-29), pages 774 - 779, XP010280282, ISBN: 978-0-7803-4213-2, DOI: 10.1109/PPC.1997.679458 *
AGAFONOV ET AL.: "Pulsed Power Conference", DIGEST OF TECHNICAL PAPERS. 1997 11 TH IEEE INTERNATIONAL, 1997, pages 774 - 779

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2999797A1 (fr) * 2012-12-19 2014-06-20 Thales Sa Dispositif de generation d'ondes hyperfrequences a double cathodes
FR2999798A1 (fr) * 2012-12-19 2014-06-20 Thales Sa Cathode pour dispositif de generation d'ondes electromagnetiques, comprenant des regions d'emission mobiles les unes par rapport aux autres
EP2747118A1 (de) * 2012-12-19 2014-06-25 Thales Kathde für einen Erzeuger elektromagnetischer Wellen mit gegenseitig verschiebbaren Teilen
EP2747117A3 (de) * 2012-12-19 2016-03-30 Thales Vorrichtung zur Erzeugung von Hyperfrequenzwellen mit zwei Kathoden

Also Published As

Publication number Publication date
US20120187833A1 (en) 2012-07-26
FR2970114A1 (fr) 2012-07-06
FR2970114B1 (fr) 2013-04-05

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