GB1073121A - Improvements in or relating magnetrons - Google Patents

Improvements in or relating magnetrons

Info

Publication number
GB1073121A
GB1073121A GB12353/65A GB1235365A GB1073121A GB 1073121 A GB1073121 A GB 1073121A GB 12353/65 A GB12353/65 A GB 12353/65A GB 1235365 A GB1235365 A GB 1235365A GB 1073121 A GB1073121 A GB 1073121A
Authority
GB
United Kingdom
Prior art keywords
anode
members
cavities
volume
march
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
GB12353/65A
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.)
MO Valve Co Ltd
Original Assignee
MO 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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB12353/65A priority Critical patent/GB1073121A/en
Priority to US534314A priority patent/US3428859A/en
Publication of GB1073121A publication Critical patent/GB1073121A/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
    • 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

Landscapes

  • Microwave Tubes (AREA)

Abstract

1,073,121. Magnetrons. M-O VALVE CO. Ltd., and V. A. HEATHCOTE. March 15, 1966 [March 23, 1965], No. 12353/65. Heading H1D. Disposed within each of at least the majority of the resonant cavities formed in the anode of a multi-cavity magnetron is a conductive member, the members being of a material different from that of the anode, and held at anode potential and in good thermal contact with the anode, the material and volume of the members being chosen, relative to the anode material and the volume of the cavities, such that the free volume of the cavities exhibits a rate of change with temperature which is smaller than that which would result if the members were constructed of the anode material. A copper-plated molybdenum anode (4, Figs. 1 and 2, not shown) includes vanes (8) defining the resonant cavities, into all but one of which project axially directed copper tubes (12, Figs. 2 and 3, not shown). The remaining cavity is coupled to a circular output waveguide (14) sealed by a ceramic plug (15) having a slot (16) for the receipt of an E-shaped metal member the central limb of which is connected to the anode body (4), and the two outer limbs of which are connected to the strap rings.
GB12353/65A 1965-03-23 1965-03-23 Improvements in or relating magnetrons Expired GB1073121A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB12353/65A GB1073121A (en) 1965-03-23 1965-03-23 Improvements in or relating magnetrons
US534314A US3428859A (en) 1965-03-23 1966-03-15 Magnetron anode having temperature compensating members within the cavities of a different coefficient of thermal expansion from the cavities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12353/65A GB1073121A (en) 1965-03-23 1965-03-23 Improvements in or relating magnetrons

Publications (1)

Publication Number Publication Date
GB1073121A true GB1073121A (en) 1967-06-21

Family

ID=10002960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12353/65A Expired GB1073121A (en) 1965-03-23 1965-03-23 Improvements in or relating magnetrons

Country Status (2)

Country Link
US (1) US3428859A (en)
GB (1) GB1073121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151070A (en) * 1983-12-01 1985-07-10 Emi Varian Ltd Improvements relating to magnetrons
GB2212323A (en) * 1987-11-12 1989-07-19 English Electric Valve Co Ltd Magnetron anodes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829692A (en) * 1995-02-21 1998-11-03 Wildcat Services Inc. Modularly tiered clear-trajectory impact comminuter and modular comminution chamber

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE474540A (en) * 1942-10-01
US2608673A (en) * 1949-10-25 1952-08-26 Raytheon Mfg Co Electron discharge device
US2852720A (en) * 1953-08-12 1958-09-16 Litton Industries Inc Frequency stable magnetron
US2811670A (en) * 1954-10-22 1957-10-29 Raytheon Mfg Co Tunable magnetrons
US2810094A (en) * 1955-10-11 1957-10-15 Palmer P Derby Method for frequency compensating a magnetron anode for temperature change
GB1054461A (en) * 1963-02-06
US3289037A (en) * 1963-04-29 1966-11-29 Litton Industries Inc Temperature compensated magnetron anode structure having alternate segments of differing thermal expansion coefficient

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151070A (en) * 1983-12-01 1985-07-10 Emi Varian Ltd Improvements relating to magnetrons
GB2212323A (en) * 1987-11-12 1989-07-19 English Electric Valve Co Ltd Magnetron anodes

Also Published As

Publication number Publication date
US3428859A (en) 1969-02-18

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