GB641086A - Improvements in or relating to magnetrons - Google Patents

Improvements in or relating to magnetrons

Info

Publication number
GB641086A
GB641086A GB6916/47A GB691647A GB641086A GB 641086 A GB641086 A GB 641086A GB 6916/47 A GB6916/47 A GB 6916/47A GB 691647 A GB691647 A GB 691647A GB 641086 A GB641086 A GB 641086A
Authority
GB
United Kingdom
Prior art keywords
filaments
emissive
slots
anode block
supported
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
GB6916/47A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International 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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB641086A publication Critical patent/GB641086A/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
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/30—Angle modulation by means of transit-time tube
    • H03C3/32—Angle modulation by means of transit-time tube the tube being a magnetron

Abstract

641,086. Magnetrons. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 12, 1947, No. 6916. Convention date, Sept. 27, 1944. [Class 39 (i)] A multicavity magnetron is tuned by an axially-extending auxiliary emissive cathode disposed in at least one of the cavities in proximity to the opening of the cavity into the main cathode chamber. Emissive filaments 23 are disposed in the slots 15 of a slot-and-hole type multicavity magnetron, thus varying the capacities across the slots. The filaments 23 project from opposite ends of the resonant cavities 14 where they are supported by radial tensioning arms 24 from conductive rings 19 insulatively supported from the anode block 12. The filaments may be directly or indirectlyheated and the emission varied by control of the heating current, or by a modulating potential applied between the filaments and the anode block, or the filaments may be secondary emissive and the emission varied similarly by a modulating potential.
GB6916/47A 1944-09-27 1947-03-12 Improvements in or relating to magnetrons Expired GB641086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US555943A US2504739A (en) 1944-09-27 1944-09-27 Electron discharge device having a cavity resonator provided with a tuning electrode

Publications (1)

Publication Number Publication Date
GB641086A true GB641086A (en) 1950-08-02

Family

ID=24219238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6916/47A Expired GB641086A (en) 1944-09-27 1947-03-12 Improvements in or relating to magnetrons

Country Status (4)

Country Link
US (1) US2504739A (en)
BE (1) BE472619A (en)
FR (1) FR947720A (en)
GB (1) GB641086A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826719A (en) * 1955-04-01 1958-03-11 Rca Corp Magnetron

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781476A (en) * 1944-11-16 1957-02-12 Rca Corp Magnetron
US2782342A (en) * 1947-07-01 1957-02-19 Rca Corp Magnetron
GB696089A (en) * 1951-02-28 1953-08-26 M O Valve Co Ltd Improvements in or relating to magnetron oscillators
US2765424A (en) * 1951-03-30 1956-10-02 Westinghouse Electric Corp Magnetron
DE1052582B (en) * 1951-06-26 1959-03-12 Raytheon Mfg Co Electron tubes in the manner of a magnetron generator tube for generating amplitude-modulated vibrations
US2748277A (en) * 1951-11-23 1956-05-29 Raytheon Mfg Co Magnetron noise generators
US2750506A (en) * 1953-03-26 1956-06-12 Raytheon Mfg Co High-frequency modulation systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063342A (en) * 1934-12-08 1936-12-08 Bell Telephone Labor Inc Electron discharge device
US2270777A (en) * 1939-04-06 1942-01-20 Telefunken Gmbh Ultra short wave electron discharge device system
GB537491A (en) * 1939-12-22 1941-06-24 Standard Telephon & Radio Ag Improvements in or relating to high frequency electron discharge apparatus
US2241976A (en) * 1940-04-25 1941-05-13 Gen Electric High frequency apparatus
US2408234A (en) * 1941-11-26 1946-09-24 Raytheon Mfg Co Tunable magnetron
US2412372A (en) * 1943-10-26 1946-12-10 Rca Corp Magnetron

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826719A (en) * 1955-04-01 1958-03-11 Rca Corp Magnetron

Also Published As

Publication number Publication date
BE472619A (en)
US2504739A (en) 1950-04-18
FR947720A (en) 1949-07-11

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