US2870375A - Cavity-resonator magnetron - Google Patents

Cavity-resonator magnetron Download PDF

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Publication number
US2870375A
US2870375A US513445A US51344555A US2870375A US 2870375 A US2870375 A US 2870375A US 513445 A US513445 A US 513445A US 51344555 A US51344555 A US 51344555A US 2870375 A US2870375 A US 2870375A
Authority
US
United States
Prior art keywords
cathode
magnetron
cavity
ring
magnetrons
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 - Lifetime
Application number
US513445A
Other languages
English (en)
Inventor
Verweel Jan
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.)
US Philips Corp
North American Philips Co Inc
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US2870375A publication Critical patent/US2870375A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01J25/593—Rising-sun magnetrons

Definitions

  • At least one extremity of the cathode is surrounded by a conductive ring including a radial extension in which either the ring is connected to the cathode, or the extension is connected to the anode in a conductive manner.

Landscapes

  • Microwave Tubes (AREA)
US513445A 1954-06-21 1955-06-06 Cavity-resonator magnetron Expired - Lifetime US2870375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL778013X 1954-06-21

Publications (1)

Publication Number Publication Date
US2870375A true US2870375A (en) 1959-01-20

Family

ID=19830035

Family Applications (1)

Application Number Title Priority Date Filing Date
US513445A Expired - Lifetime US2870375A (en) 1954-06-21 1955-06-06 Cavity-resonator magnetron

Country Status (5)

Country Link
US (1) US2870375A (en)van)
DE (1) DE1093919B (en)van)
FR (1) FR1137360A (en)van)
GB (1) GB778013A (en)van)
NL (2) NL90563C (en)van)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122705A (en) * 1961-11-08 1964-02-25 Amalga Corp Conelrad warning device
EP0441569A3 (en) * 1990-02-06 1992-03-25 Eev Limited Magnetrons

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408234A (en) * 1941-11-26 1946-09-24 Raytheon Mfg Co Tunable magnetron
US2465211A (en) * 1944-03-08 1949-03-22 Rca Corp Electron discharge device for high frequencies
US2468243A (en) * 1945-05-07 1949-04-26 Raytheon Mfg Co Electron discharge device
US2480999A (en) * 1946-07-23 1949-09-06 Raytheon Mfg Co Electron discharge device of the magnetron type

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE480701A (en)van) * 1942-10-15
US2655616A (en) * 1944-05-24 1953-10-13 English Electric Valve Co Ltd Magnetron
US2542899A (en) * 1944-11-30 1951-02-20 Raytheon Mfg Co Cavity resonator electron discharge device
NL81363C (en)van) * 1945-09-29

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408234A (en) * 1941-11-26 1946-09-24 Raytheon Mfg Co Tunable magnetron
US2465211A (en) * 1944-03-08 1949-03-22 Rca Corp Electron discharge device for high frequencies
US2468243A (en) * 1945-05-07 1949-04-26 Raytheon Mfg Co Electron discharge device
US2480999A (en) * 1946-07-23 1949-09-06 Raytheon Mfg Co Electron discharge device of the magnetron type

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122705A (en) * 1961-11-08 1964-02-25 Amalga Corp Conelrad warning device
EP0441569A3 (en) * 1990-02-06 1992-03-25 Eev Limited Magnetrons
US5182493A (en) * 1990-02-06 1993-01-26 Eev Limited Rising sun magnetron with planar tuning member protruding into only one set of cavities

Also Published As

Publication number Publication date
GB778013A (en) 1957-07-03
DE1093919B (de) 1960-12-01
FR1137360A (fr) 1957-05-28
NL90563C (en)van)
NL188565B (nl)

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