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GB586148A - Improvements in or relating to velocity-modulated electron discharge devices - Google Patents

Improvements in or relating to velocity-modulated electron discharge devices

Info

Publication number
GB586148A
GB586148A GB382/42A GB38242A GB586148A GB 586148 A GB586148 A GB 586148A GB 382/42 A GB382/42 A GB 382/42A GB 38242 A GB38242 A GB 38242A GB 586148 A GB586148 A GB 586148A
Authority
GB
United Kingdom
Prior art keywords
grids
grid
stream
velocity
modulated
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
GB382/42A
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 GB586148A publication Critical patent/GB586148A/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
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/06—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron
    • H01J25/08—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron with electron stream perpendicular to the axis of the resonator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/28—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is perpendicular to the axis of the resonator or resonators and is pencil-like before reflection

Landscapes

  • Particle Accelerators (AREA)

Abstract

586,148. Velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd., FREMLIN, J. H., and FOULKES, C. H. Jan. 9, 1942, No. 382. [Class 39 (i)] In an electron velocitymodulated discharge tube the resonating system within the tube is formec by grids. A cathode 5 Fig. 2, surrounded by a control grid 1 and accelerating grid 2 projects a stream through the grids 3,4; a shield 6 behind the cathode absorbs electrons flowing this way and an electrode 7 reflects electrons back through the grids 3, 4. The grids 3, 4 form a resonating system which modulates the electron stream at one gap and receives energy from the modulated stream at the other gap, the distance within the grid 4 forming a drift space. The grids 3, 4 are connected to a trifilar Lecher wire system. In a modification, the grid 3 is replaced by two grids 3A, 3B, Fig. 4 ; the reflector electrode 7 is approximately cylindrical and practically surrounds these grids. The grids 3A, 3B are formed by winding on supports 22, 23 in the usual manner and cutting away one side of each grid.. The pair of wires 22, 23 are carried up to connect to a two-wire Lecher system ; or only one of each pair may be used for this connection. The grid 4 is at constant potential. The electrodes are held between mica spacers.
GB382/42A 1942-01-09 1942-01-09 Improvements in or relating to velocity-modulated electron discharge devices Expired GB586148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB270377X 1942-01-09

Publications (1)

Publication Number Publication Date
GB586148A true GB586148A (en) 1947-03-10

Family

ID=10253144

Family Applications (1)

Application Number Title Priority Date Filing Date
GB382/42A Expired GB586148A (en) 1942-01-09 1942-01-09 Improvements in or relating to velocity-modulated electron discharge devices

Country Status (6)

Country Link
US (1) US2459806A (en)
BE (1) BE478602A (en)
CH (1) CH270377A (en)
ES (1) ES176824A1 (en)
FR (1) FR932832A (en)
GB (1) GB586148A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747087A (en) * 1950-08-16 1956-05-22 Gen Electric Electric discharge devices and high frequency systems therefor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL45407C (en) * 1934-02-23
DE727809C (en) * 1936-03-05 1942-11-12 Telefunken Gmbh Arrangement for generating electrical vibrations
US2190511A (en) * 1938-03-01 1940-02-13 Gen Electric Ultra short wave system
US2207846A (en) * 1938-06-30 1940-07-16 Rca Corp Electronic discharge device
US2287845A (en) * 1939-03-08 1942-06-30 Univ Leland Stanford Junior Thermionic vacuum tube and circuits
BE441498A (en) * 1939-09-13
US2342263A (en) * 1939-12-22 1944-02-22 Int Standard Electric Corp Electron discharge apparatus
GB537490A (en) * 1939-12-22 1941-06-24 Standard Telephones Cables Ltd Improvements in or relating to electron discharge apparatus
US2383343A (en) * 1940-08-13 1945-08-21 Westinghouse Electric Corp Two-cylinder short-wave resonator apparatus

Also Published As

Publication number Publication date
FR932832A (en) 1948-04-02
CH270377A (en) 1950-08-31
US2459806A (en) 1949-01-25
ES176824A1 (en) 1947-03-16
BE478602A (en)

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