GB592410A - Improvements in magnetrons - Google Patents

Improvements in magnetrons

Info

Publication number
GB592410A
GB592410A GB10304/44A GB1030444A GB592410A GB 592410 A GB592410 A GB 592410A GB 10304/44 A GB10304/44 A GB 10304/44A GB 1030444 A GB1030444 A GB 1030444A GB 592410 A GB592410 A GB 592410A
Authority
GB
United Kingdom
Prior art keywords
cathode
pipe
bore
bores
passage
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
GB10304/44A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB592410A publication Critical patent/GB592410A/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
    • H01J25/54—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 only one cavity or other resonator, e.g. neutrode tubes
    • 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

Landscapes

  • Microwave Tubes (AREA)

Abstract

592,410. Magnetrons. STANDARD TELEPHONES & CABLES, Ltd. May 26, 1944, No. 10304. Convention date, March 26, 1943. [Class 39 (i)] A magnetron comprises a metal pipe 10 having a transverse passage 13 forming with the bore 11 of the pipe a central cavity in which the cathode 12 is housed. The bore 11 is preferably of square section. The cathode heater leads 32, 32<1> pass through bores 28, 281 smaller than the central bore 11 and parallel thereto, and emerge through metal sleeves 26, 261 and glass seals 30, 30<1>. The cathode 12 is connected to and supported by the upper lead 32. Polepieces 14 are mounted on either side of the cathode. The passage 13 is sealed by a plate. The magnetron may be coupl'ed, to a device such as a wave-guide by a cap 16 provided with a copper disc 18 slotted at 20 and mica disc 22. The opposite end of the pipe is sealed by a cap 24 having apertures registering with the bores 28, 28<1>. The cathode may alternatively be directly heated or may consist of a lightly wound helix of tungsten wire heated by bombardment by electrons emitted by an enclosed filament. In modifications, the bores through which the heater leads pass are transverse both to the passage 13 and to the main bore. In one form, they extend from opposite ends of the cathode and emerge oh the same side of the pipe and in another they are coaxial with one another and extend from one end of the cathode, passing out through opposite sides of the pipe.
GB10304/44A 1943-03-26 1944-05-26 Improvements in magnetrons Expired GB592410A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US481314A US2419536A (en) 1943-03-26 1943-03-26 Magnetron vacuum tube

Publications (1)

Publication Number Publication Date
GB592410A true GB592410A (en) 1947-09-17

Family

ID=23911476

Family Applications (2)

Application Number Title Priority Date Filing Date
GB10304/44A Expired GB592410A (en) 1943-03-26 1944-05-26 Improvements in magnetrons
GB10823/44A Expired GB581451A (en) 1943-03-26 1944-06-05 Electron discharge devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB10823/44A Expired GB581451A (en) 1943-03-26 1944-06-05 Electron discharge devices

Country Status (4)

Country Link
US (1) US2419536A (en)
BE (1) BE474796A (en)
FR (1) FR951011A (en)
GB (2) GB592410A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259181A (en) * 1991-08-30 1993-03-03 Eev Ltd Magnetron

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462370A (en) * 1946-10-17 1949-02-22 Aircraft Radio Corp Oscillator tube mounting
US2558664A (en) * 1948-05-15 1951-06-26 Sylvania Electric Prod Switch tube
US2654844A (en) * 1949-04-08 1953-10-06 Eitel Mccullough Inc Ultrahigh-frequency generator and electron tube
US2552047A (en) * 1949-04-19 1951-05-08 Rca Corp Electron discharge device with temperature-stabilized cathode

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL50309C (en) * 1936-11-07
US2163156A (en) * 1937-07-16 1939-06-20 Bell Telephone Labor Inc Electron discharge device
GB509102A (en) * 1937-10-08 1939-07-11 Electricitatsgesellschaft Sani Improvements in vacuum electric discharge apparatus
US2282856A (en) * 1940-01-12 1942-05-12 Telefunken Gmbh Magnetron oscillator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259181A (en) * 1991-08-30 1993-03-03 Eev Ltd Magnetron
GB2259181B (en) * 1991-08-30 1995-06-21 Eev Ltd Magnetron

Also Published As

Publication number Publication date
BE474796A (en)
GB581451A (en) 1946-10-14
US2419536A (en) 1947-04-29
FR951011A (en) 1949-10-13

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