GB709129A - Improvements in or relating to magnetrons - Google Patents

Improvements in or relating to magnetrons

Info

Publication number
GB709129A
GB709129A GB1673151A GB1673151A GB709129A GB 709129 A GB709129 A GB 709129A GB 1673151 A GB1673151 A GB 1673151A GB 1673151 A GB1673151 A GB 1673151A GB 709129 A GB709129 A GB 709129A
Authority
GB
United Kingdom
Prior art keywords
closed
tuning
smaller cavities
anode block
cavities
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
GB1673151A
Inventor
Alan Hugh Pickering
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.)
Teledyne UK Ltd
Original Assignee
English Electric Valve Co Ltd
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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Priority to GB1673151A priority Critical patent/GB709129A/en
Priority to FR1205104D priority patent/FR1205104A/en
Priority to DEE5757A priority patent/DE1076826B/en
Publication of GB709129A publication Critical patent/GB709129A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Microwave Tubes (AREA)

Abstract

709,129. Magnetrons. ENGLISH ELECTRIC VALVE CO., Ltd. May 30, 1952 [July 13, 1951], No. 16731/51. Class 39(1) In a multi-cavity magnetron of the " rising sun " unstrapped type, the mouths of the smaller cavities facing one end space are closed off, and tuning is provided by varying the position of a member relative to the end of the anode block where the smaller cavities are closed. The effect of closing off the ends of the smaller cavities is stated to increase the tuning range. The anode block shown in Fig. 2 has secured to it a plate of the form shown in Fig. 3 for closing the ends of the smaller cavities. The smaller cavities may be closed at both ends of the anode block, and tuning members may be provided at each end and arranged to be actuated either together or in succession. A magnetron in which the smaller cavities are' closed at one end of the anode block, and all the cavities are closed at the other end, is referred to. The tuning mechanism as shown in Fig. 1, consists of an axially movable tube 5 carrying the tuning plate 4. The tube 5 is also the magnetron exhaust tube and is sealed off in the usual way at 5a. The envelope is completed by a flexible bellows 6 and represents a magnetic pole-piece. According to the Provisional Specification the turning mechanism of Fig. 1 may be applied to multi-cavity magnetrons in general.
GB1673151A 1951-07-13 1951-07-13 Improvements in or relating to magnetrons Expired GB709129A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1673151A GB709129A (en) 1951-07-13 1951-07-13 Improvements in or relating to magnetrons
FR1205104D FR1205104A (en) 1951-07-13 1952-07-10 Magnetron refinements
DEE5757A DE1076826B (en) 1951-07-13 1952-07-14 Tunable multi-slot magnetron tube of the radial wreath design

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1673151A GB709129A (en) 1951-07-13 1951-07-13 Improvements in or relating to magnetrons

Publications (1)

Publication Number Publication Date
GB709129A true GB709129A (en) 1954-05-19

Family

ID=10082636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1673151A Expired GB709129A (en) 1951-07-13 1951-07-13 Improvements in or relating to magnetrons

Country Status (3)

Country Link
DE (1) DE1076826B (en)
FR (1) FR1205104A (en)
GB (1) GB709129A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242308A (en) * 1990-02-06 1991-09-25 Eev Ltd Magnetrons
US5182493A (en) * 1990-02-06 1993-01-26 Eev Limited Rising sun magnetron with planar tuning member protruding into only one set of cavities
EP2472554A1 (en) * 2010-12-29 2012-07-04 Thales Microwave generating apparatus having a cathode, each extremity thereof being connected to a voltage source
EP2472555A1 (en) * 2010-12-29 2012-07-04 Thales Device for the generation of hyperfrequency waves, comprising a plurality of magnetrons

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444435A (en) * 1942-05-01 1948-07-06 Bell Telephone Labor Inc Frequency control of magnetron oscillators
US2734148A (en) * 1950-04-03 1956-02-07 Magnetron tube

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242308A (en) * 1990-02-06 1991-09-25 Eev Ltd Magnetrons
US5182493A (en) * 1990-02-06 1993-01-26 Eev Limited Rising sun magnetron with planar tuning member protruding into only one set of cavities
GB2242308B (en) * 1990-02-06 1994-03-02 Eev Ltd Magnetrons
EP2472554A1 (en) * 2010-12-29 2012-07-04 Thales Microwave generating apparatus having a cathode, each extremity thereof being connected to a voltage source
EP2472555A1 (en) * 2010-12-29 2012-07-04 Thales Device for the generation of hyperfrequency waves, comprising a plurality of magnetrons
FR2970113A1 (en) * 2010-12-29 2012-07-06 Thales Sa HYPERFREQUENCY WAVE GENERATING DEVICE COMPRISING A PLURALITY OF MAGNETRON
FR2970114A1 (en) * 2010-12-29 2012-07-06 Thales Sa HYPERFREQUENCY WAVE GENERATING DEVICE HAVING A CATHODE OF WHICH EACH END IS CONNECTED TO A VOLTAGE SOURCE

Also Published As

Publication number Publication date
FR1205104A (en) 1960-01-29
DE1076826B (en) 1960-03-03

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