GB1396067A - Microwave magnetron - Google Patents

Microwave magnetron

Info

Publication number
GB1396067A
GB1396067A GB4292573A GB4292573A GB1396067A GB 1396067 A GB1396067 A GB 1396067A GB 4292573 A GB4292573 A GB 4292573A GB 4292573 A GB4292573 A GB 4292573A GB 1396067 A GB1396067 A GB 1396067A
Authority
GB
United Kingdom
Prior art keywords
magnets
anode
cooling fins
edges
plates
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
GB4292573A
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.)
Raytheon Co
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Publication of GB1396067A publication Critical patent/GB1396067A/en
Expired legal-status Critical Current

Links

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
    • H01J23/005—Cooling methods or arrangements
    • 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
    • H01J23/10—Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path

Landscapes

  • Microwave Tubes (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Abstract

1396067 Magnetrons RAYTHEON CO 12 Sept 1973 [24 Oct 1972] 42925/73 Heading H1D A multicavity magnetron with anode 14 has permanent magnets 96 and 98 connected by axially spaced magnetic plates 84 and 86, and cooling fins 104 contacting the side wall of the anode and partially surrounding the magnets, the plates 84 and 86 being rectangular with bevelled corners to form tapered edges 88, which edges are substantially longer than the remaining portions of the narrow sides of the rectangle, and correspond as closely as possible to the surfaces of the magnets, which are cylindrical as described. Unwanted radiation is suppressed by a braided gasket 90 around the antenna dome 46, and by a by-pass capacitor and ferrite rings housed with the cathode leads within the perforated box 78. Air 106 is driven by a fan through the cooling fins.
GB4292573A 1972-10-24 1973-09-12 Microwave magnetron Expired GB1396067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30006672A 1972-10-24 1972-10-24

Publications (1)

Publication Number Publication Date
GB1396067A true GB1396067A (en) 1975-05-29

Family

ID=23157561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4292573A Expired GB1396067A (en) 1972-10-24 1973-09-12 Microwave magnetron

Country Status (8)

Country Link
US (1) US3794879A (en)
JP (1) JPS49135559A (en)
BE (1) BE806116A (en)
CA (1) CA1000405A (en)
DE (1) DE2350397A1 (en)
FR (1) FR2204036B1 (en)
GB (1) GB1396067A (en)
IT (1) IT994414B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5030654U (en) * 1973-07-16 1975-04-05
JPS5062460U (en) * 1973-10-11 1975-06-07
JPS5423259Y2 (en) * 1974-01-11 1979-08-10
US4709129A (en) * 1976-12-16 1987-11-24 Raytheon Company Microwave heating apparatus
JPS5535451A (en) * 1978-09-06 1980-03-12 Hitachi Ltd Magnetron
EP0426130B1 (en) * 1989-10-31 1995-12-20 Kabushiki Kaisha Toshiba Microwave oven magnetron having choking structure
JP3390562B2 (en) * 1994-06-28 2003-03-24 シャープ株式会社 Magnetron and microwave oven
US6717365B2 (en) * 2002-04-18 2004-04-06 Lg Electronics Inc. Magnetron
JP6282811B2 (en) * 2012-07-09 2018-02-21 東芝ホクト電子株式会社 Plasma light emitting device and electromagnetic wave generator used therefor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053676B (en) * 1957-10-10 1959-03-26 Philips Patentverwaltung Permanent magnet system for magnetron tubes
DE1491353B2 (en) * 1960-03-04 1972-01-05 Husqvarna Vapenfabriks Ab, Huskvarna (Schweden) COOLING DEVICE FOR MAGNETRONE
FR1403296A (en) * 1963-07-17 1965-06-18 Philips Nv Magnetron and magnetron generator used in this generator
US3493810A (en) * 1968-02-16 1970-02-03 Litton Precision Prod Inc Magnetron construction
DE1639370A1 (en) * 1968-02-28 1971-02-04 Philips Patentverwaltung High vacuum electron tube with ion getter pump
US3562579A (en) * 1968-06-11 1971-02-09 Nippon Electric Co Electron discharge device employing inexpensive permanent magnets if significantly reduced size
GB1257505A (en) * 1968-06-21 1971-12-22
JPS5116219Y1 (en) * 1970-05-13 1976-04-28

Also Published As

Publication number Publication date
DE2350397A1 (en) 1974-05-09
CA1000405A (en) 1976-11-23
FR2204036A1 (en) 1974-05-17
JPS49135559A (en) 1974-12-27
IT994414B (en) 1975-10-20
US3794879A (en) 1974-02-26
FR2204036B1 (en) 1977-09-23
BE806116A (en) 1974-02-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee