GB507543A - Improvements in or relating to electron discharge tubes of the magnetron type - Google Patents

Improvements in or relating to electron discharge tubes of the magnetron type

Info

Publication number
GB507543A
GB507543A GB34263/38A GB3426338A GB507543A GB 507543 A GB507543 A GB 507543A GB 34263/38 A GB34263/38 A GB 34263/38A GB 3426338 A GB3426338 A GB 3426338A GB 507543 A GB507543 A GB 507543A
Authority
GB
United Kingdom
Prior art keywords
magnet
cathode
space
tube
polepieces
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
GB34263/38A
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.)
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Original Assignee
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
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 Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH filed Critical Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Publication of GB507543A publication Critical patent/GB507543A/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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/10—Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path
    • 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

Landscapes

  • Microwave Tubes (AREA)
  • Lasers (AREA)

Abstract

507,543. Magnetrons. FIDES GES. FUR DIE VERWALTUNG & VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN. Nov. 24, 1938, No. 34263. Convention date, Nov. 25, 1937. [Class 39 (i)]. In a magnetron having a cathode mounted axially within an anode system, the requisite magnetic field having lines of force running substantially parallel to the axis is produced by a magnet accommodated within a hollow longitudinal space which is cut off from the discharge space. In the form shown, the magnetron comprises anodes 2, 3 and a cathode 10 wound round a glass, ceramic or metallic tube 6, which is sealed into the envelope 1, and in which is placed the permanent magnet 7. The magnet may be replaced when necessary or remagnetized by a yoke 8 and coil 9. In a modification, the magnet may be a bar electromagnet, and may be provided with polepieces screwed on to the projecting ends of the tube 6 so that the air gaps between polepieces and magnets and the effective flux may be varied. The tube which may be of copper may be insulated from cathode and magnet by a thin ceramic cylinder, or a burnt-on layer of ceramic powder or a glass flux. Liquid or gaseous cooling fluid may be passed through the hollow space; simple convective cooling may be obtained by mounting the space vertically.
GB34263/38A 1937-11-25 1938-11-24 Improvements in or relating to electron discharge tubes of the magnetron type Expired GB507543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE507543X 1937-11-25

Publications (1)

Publication Number Publication Date
GB507543A true GB507543A (en) 1939-06-16

Family

ID=6546790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34263/38A Expired GB507543A (en) 1937-11-25 1938-11-24 Improvements in or relating to electron discharge tubes of the magnetron type

Country Status (2)

Country Link
US (1) US2235517A (en)
GB (1) GB507543A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR954568A (en) * 1942-05-09 1950-01-03
US2962618A (en) * 1959-08-21 1960-11-29 Burroughs Corp Magnetron tube
US3215939A (en) * 1961-09-07 1965-11-02 Csf Electronic switching system
US3346766A (en) * 1964-03-13 1967-10-10 Sfd Lab Inc Microwave cold cathode magnetron with internal magnet
US3843904A (en) * 1973-08-01 1974-10-22 Us Navy Magnetic field geometry for crossed-field devices
US3855498A (en) * 1973-11-01 1974-12-17 Us Navy Center-pole magnetic circuit
US3881127A (en) * 1973-11-01 1975-04-29 Us Navy Bucking samarium cobalt magnets for crossed field devices
US3984725A (en) * 1975-05-19 1976-10-05 Varian Associates Permanent magnet structure for crossed-field tubes

Also Published As

Publication number Publication date
US2235517A (en) 1941-03-18

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