FR943296A - Cold cathode magnetron - Google Patents

Cold cathode magnetron

Info

Publication number
FR943296A
FR943296A FR943296DA FR943296A FR 943296 A FR943296 A FR 943296A FR 943296D A FR943296D A FR 943296DA FR 943296 A FR943296 A FR 943296A
Authority
FR
France
Prior art keywords
cold cathode
cathode magnetron
magnetron
cold
cathode
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
Other languages
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR943296A publication Critical patent/FR943296A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
    • H01J1/304—Field-emissive cathodes
    • 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
    • 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
FR943296D 1946-03-28 1947-03-14 Cold cathode magnetron Expired FR943296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US657716A US2513933A (en) 1946-03-28 1946-03-28 Cold cathode magnetron

Publications (1)

Publication Number Publication Date
FR943296A true FR943296A (en) 1949-03-03

Family

ID=24638380

Family Applications (1)

Application Number Title Priority Date Filing Date
FR943296D Expired FR943296A (en) 1946-03-28 1947-03-14 Cold cathode magnetron

Country Status (4)

Country Link
US (1) US2513933A (en)
BE (1) BE474423A (en)
FR (1) FR943296A (en)
GB (1) GB627343A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782342A (en) * 1947-07-01 1957-02-19 Rca Corp Magnetron
US2691758A (en) * 1951-01-26 1954-10-12 Israel R Senitzky Method of measuring pressure with a magnetron
US2633556A (en) * 1951-08-02 1953-03-31 Beverly D Kumpfer Millimeter wave generator
US2813992A (en) * 1952-11-29 1957-11-19 Rca Corp Gas discharge device utilizing controlled electron trapping
US2869031A (en) * 1955-03-01 1959-01-13 Brett Herbert Cathode
US3091719A (en) * 1959-04-14 1963-05-28 Field Emission Corp Microwave transducer
US4104559A (en) * 1976-11-01 1978-08-01 Microwave Associates, Inc. Isopolar magnetron supported with rigid insulation in a remote housing
GB2238903B (en) * 1989-12-08 1994-10-19 Eev Ltd Magnetrons
US5159241A (en) * 1990-10-25 1992-10-27 General Dynamics Corporation Air Defense Systems Division Single body relativistic magnetron
IL106905A (en) * 1993-09-03 1997-01-10 Israel State Magnetron construction particularly useful as a relativistic magnetron
US6686696B2 (en) * 2001-03-08 2004-02-03 Genvac Aerospace Corporation Magnetron with diamond coated cathode

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1309704A (en) * 1919-07-15 stoekle
US1279850A (en) * 1913-05-06 1918-09-24 William Dubilier Wireless apparatus and method therefor.
US1230004A (en) * 1915-09-18 1917-06-12 Gen Electric Incandescent cathode device.
US1577846A (en) * 1918-12-27 1926-03-23 Western Electric Co Electric space discharge device and method of operating the same
DE390479C (en) * 1919-12-12 1924-02-19 Julius Edgar Lilienfeld Dr High vacuum pipes, in particular Roentgen pipes, valve pipes, transmitter pipes or reinforcement pipes
US1565659A (en) * 1921-09-03 1925-12-15 Julius E Lilienfeld High-vacuum device for influencing currents
US1661579A (en) * 1922-07-28 1928-03-06 Cooper Hewitt Electric Co Bulb rectifier
US1705377A (en) * 1922-08-08 1929-03-12 Vickers Electrical Co Ltd Thermionic device
US1863702A (en) * 1926-04-12 1932-06-21 Raytheon Inc Gaseous conduction method and apparatus
US1930088A (en) * 1929-01-03 1933-10-10 Gen Electric Vapor Lamp Co Electrical discharge device
US1984877A (en) * 1930-11-21 1934-12-18 Telefunken Gmbh Gaseous discharge amplifier tube
US1986894A (en) * 1931-07-22 1935-01-08 Radio Res Lab Inc Nonregenerative system and method of operating the same
US1965589A (en) * 1932-10-11 1934-07-10 Gen Electric Vapor Lamp Co Gaseous electric discharge device and method of making the same
US2163157A (en) * 1937-07-22 1939-06-20 Bell Telephone Labor Inc Electron discharge apparatus
US2293468A (en) * 1939-09-16 1942-08-18 Univ Illinois Cold cathode rectifier
US2409716A (en) * 1941-09-27 1946-10-22 Westinghouse Electric Corp High-voltage discharge device
US2406276A (en) * 1942-11-13 1946-08-20 Gen Electric Electric discharge device
US2456896A (en) * 1944-08-08 1948-12-21 Westinghouse Electric Corp Ultra high frequency device

Also Published As

Publication number Publication date
BE474423A (en)
US2513933A (en) 1950-07-04
GB627343A (en) 1949-08-08

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