GB612513A - Magnetron electron discharge devices and associated circuits - Google Patents

Magnetron electron discharge devices and associated circuits

Info

Publication number
GB612513A
GB612513A GB15905/45A GB1590545A GB612513A GB 612513 A GB612513 A GB 612513A GB 15905/45 A GB15905/45 A GB 15905/45A GB 1590545 A GB1590545 A GB 1590545A GB 612513 A GB612513 A GB 612513A
Authority
GB
United Kingdom
Prior art keywords
guide
wave
tube
sealed
magnetron
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
GB15905/45A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB612513A publication Critical patent/GB612513A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/08—Dielectric windows
    • 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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • 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

Landscapes

  • Microwave Tubes (AREA)

Abstract

612,513. Magnetrons. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 21, 1945, No. 15905. Convention date, Nov. 17, 1943. [Class 39 (i)] [Also in Group XL (c)] In a magnetron including a plurality of evacuated sealed cavity resonators, one resonator is coupled to a wave-guide 28, Fig. 1, by means of a hollow tube 25 sealed at one end to the wall of the resonator and communicating with the resonator through an aperture 24 in the wall, and closed at the other end by a member 27 permeable to electromagnetic waves. The member 27 is sealed across the end of a second hollow tube 26 attached to the tube 25. The magnetron has an evacuated casing 10 containing the magnetron assembly itself, which includes an indirectly-heated cathode 11 surrounded by and coaxial with the anode ring member 12, and radially disposed vanes 13 forming between them the cavity resonators. The cathode heater leads 16 and 17 are shielded from the anode assembly by the shield 18. Tube 26 overlaps the wave-guide 28 to the extent of a quarter wavelength, but is insulated from it by a sleeve 29. Instead of overlapping, the tube 26 and wave-guide 28 may be provided with lips, a quarter of a wavelength wide, spaced apart by a quarter of a wavelength. The complete wave-guide 25, 26, 28 has its longer side parallel to the axis of the cathode so that Ho1 waves are transmitted. In another embodiment, in which the anode comprises a plurality of stacked plates, so punched that a plurality of radially directed slots forming the resonators are provided, one of the slots communicates with a flared opening 49, Fig. 7. This flared opening 49, communicates with the tubular wave-guide and coupling member 50, which may be of rectangular shape and is vacuum sealed by the window 51. Specification 578,585 is referred to. Reference has been directed by the Comptroller to Specification 588,917.
GB15905/45A 1943-11-17 1945-06-21 Magnetron electron discharge devices and associated circuits Expired GB612513A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US612513XA 1943-11-17 1943-11-17
US510604A US2489131A (en) 1943-11-17 1943-11-17 Electron discharge device of the cavity resonator type

Publications (1)

Publication Number Publication Date
GB612513A true GB612513A (en) 1948-11-15

Family

ID=26740884

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15905/45A Expired GB612513A (en) 1943-11-17 1945-06-21 Magnetron electron discharge devices and associated circuits

Country Status (2)

Country Link
US (1) US2489131A (en)
GB (1) GB612513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427482A2 (en) * 1989-11-06 1991-05-15 Eev Limited Magnetrons

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630489A (en) * 1945-11-06 1953-03-03 Bell Telephone Labor Inc Wave guide joint
US2589248A (en) * 1946-01-11 1952-03-18 Andrew V Haeff Signal generator
US2768327A (en) * 1946-03-11 1956-10-23 Millman Sidney Wave guide output circuit for a magnetron
US2706276A (en) * 1946-05-03 1955-04-12 Maurice B Hall Cut-off waveguide attenuator
US2666869A (en) * 1946-06-21 1954-01-19 Albert M Clogston Magnetron output coupling system
US2576186A (en) * 1946-10-22 1951-11-27 Rca Corp Ultrahigh-frequency coupling device
US2674694A (en) * 1951-05-31 1954-04-06 William R Baker Multipactor tube oscillator
US2786185A (en) * 1952-06-11 1957-03-19 Sperry Rand Corp Microwave output window
US2817823A (en) * 1953-12-11 1957-12-24 Ernest C Okress Circular waveguide output for magnetrons
US2834914A (en) * 1955-02-25 1958-05-13 Raytheon Mfg Co Magnetron construction
US3001152A (en) * 1960-05-13 1961-09-19 Eric H Winkler Insertable waveguide termination
US3375474A (en) * 1965-10-08 1968-03-26 Martin Marietta Corp Microwave waveguide to coax coupling system
CN111243920B (en) * 2020-01-21 2021-07-13 电子科技大学 Planar microwave energy transmission window

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1684947A (en) * 1922-06-23 1928-09-18 C H F Muller Rontgenrohrenfabr Vacuum discharge apparatus
US2063342A (en) * 1934-12-08 1936-12-08 Bell Telephone Labor Inc Electron discharge device
NL54626C (en) * 1936-05-19
US2200023A (en) * 1936-09-10 1940-05-07 Julius Pintsch Kommandit Ges Ultra-high-frequency oscillation apparatus
US2283935A (en) * 1938-04-29 1942-05-26 Bell Telephone Labor Inc Transmission, radiation, and reception of electromagnetic waves
CH215600A (en) * 1938-08-12 1941-06-30 Bbc Brown Boveri & Cie Arrangement with a magnetron tube.
BE473835A (en) * 1940-04-20
US2372193A (en) * 1940-06-05 1945-03-27 Bell Telephone Labor Inc Producing and transmitting electromagnetic waves
BE446912A (en) * 1940-07-27
US2408409A (en) * 1941-04-08 1946-10-01 Bell Telephone Labor Inc Ultra high frequency electronic device
US2402184A (en) * 1941-05-03 1946-06-18 Bell Telephone Labor Inc Ultra high frequency electronic device contained within wave guides
US2404086A (en) * 1942-10-07 1946-07-16 Westinghouse Electric Corp Coupling device
US2351744A (en) * 1942-12-24 1944-06-20 Standard Telephones Cables Ltd High-frequency vacuum tube oscillator
BE475640A (en) * 1942-12-31
US2408903A (en) * 1943-06-12 1946-10-08 Sylvania Electric Prod Ultra high frequency generator
US2450023A (en) * 1943-11-15 1948-09-28 Raytheon Mfg Co Electron discharge device of the magnetron type

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427482A2 (en) * 1989-11-06 1991-05-15 Eev Limited Magnetrons
GB2238424A (en) * 1989-11-06 1991-05-29 Eev Ltd Magnetrons.
EP0427482A3 (en) * 1989-11-06 1991-12-11 Eev Limited Magnetrons
US5210465A (en) * 1989-11-06 1993-05-11 Eev Limited Magnetron having an tm01 output coupling probe passing through a coupling iris
GB2238424B (en) * 1989-11-06 1993-12-22 Eev Ltd Magnetrons

Also Published As

Publication number Publication date
US2489131A (en) 1949-11-22

Similar Documents

Publication Publication Date Title
US2619611A (en) Electron tube apparatus
GB681425A (en) Improvements in and relating to tubes of the magnetron type for ultra short waves
GB612513A (en) Magnetron electron discharge devices and associated circuits
GB596568A (en) Improvements in or relating to electron discharge devices
GB578655A (en) Improvements in or relating to high frequency electron discharge systems
GB555162A (en) Electron beam discharge apparatus incorporating resonant chamber circuits
GB616788A (en) Electrical coupling devices for use in, for example, electron discharge devices
GB653833A (en) Improvements in electron discharge devices of the velocity modulation type
US2409693A (en) Electron discharge device
GB623766A (en) Improvements in electron discharge devices and particularly magnetrons
GB617937A (en) Improvements in or relating to electron discharge devices for use on ultra high frequencies
US3359451A (en) Beam collector structure for electron tubes having concentric longitudinally partitioned cooling annuli
GB815526A (en) High frequency electron discharge device
GB1065945A (en) Improvements in or relating to magnetrons
GB634703A (en) Electron discharge devices
US4006382A (en) Magnetron filter
GB649571A (en) Improvements in and relating to electron discharge apparatus
US2698421A (en) Wave guide seal and filter structure
GB653750A (en) Improvements in or relating to magnetrons
US2667598A (en) Electron discharge apparatus utilizing a cavity resonator
US2585084A (en) Electron discharge device of the magnetron type
US2553425A (en) Electron discharge device of the magnetron type
GB617248A (en) Electron discharge devices of the magnetron type
GB640251A (en) Improvements in coupled resonator systems suitable for use in electron space discharge devices
US2769937A (en) Tunable stabilized magnetron