GB959207A - Improvements in velocity-modulated electron-beam tubes - Google Patents

Improvements in velocity-modulated electron-beam tubes

Info

Publication number
GB959207A
GB959207A GB525/61A GB52561A GB959207A GB 959207 A GB959207 A GB 959207A GB 525/61 A GB525/61 A GB 525/61A GB 52561 A GB52561 A GB 52561A GB 959207 A GB959207 A GB 959207A
Authority
GB
United Kingdom
Prior art keywords
polepiece
diameter
cavity resonator
velocity
aperture
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
GB525/61A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB959207A publication Critical patent/GB959207A/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
    • H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
    • H01J25/12—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator with pencil-like electron stream in the axis of the resonators
    • 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
    • H01J25/24—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 in the axis of the resonator or resonators and is pencil-like before reflection

Landscapes

  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)

Abstract

959,207. Velocity-modulated beam tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 5, 1961 [Jan. 8, 1960], No. 525/61. Heading H1D. A velocity-modulated beam tube comprises first and second polepieces 1, 2 spaced along the path of the beam 7 apertured for the passage of the beam therethrough, and arranged to form an axially extending magnetic field, an electron gun including a cathode 4 and an accelerating electrode 5 arranged to produce the electron beam which converges towards the first polepiece, together with a cavity resonator 11 disposed within or adjacent the aperture in the second polepiece, whereby the diameter of the beam emerging from the aperture in the first polepiece is reduced with respect to its diameter in the first polepiece by the axial magnetic field to a minimum at the point where it enters the aperture in the second polepiece. In the reflex klystron shown, the cavity resonator 10 is located at the first minimum of the diameter of the electron beam, the electrons being reflected by reflector electrode 12. In a two cavity klystron, a further cavity resonator is disposed in the path of the beam between the two polepieces, the arrangement being such that the electron beam attains a minimum diameter at each cavity resonator.
GB525/61A 1960-01-08 1961-01-05 Improvements in velocity-modulated electron-beam tubes Expired GB959207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL247173 1960-01-08

Publications (1)

Publication Number Publication Date
GB959207A true GB959207A (en) 1964-05-27

Family

ID=19752114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB525/61A Expired GB959207A (en) 1960-01-08 1961-01-05 Improvements in velocity-modulated electron-beam tubes

Country Status (3)

Country Link
US (1) US3172005A (en)
DE (1) DE1241537B (en)
GB (1) GB959207A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2191253B1 (en) * 1972-06-27 1978-03-03 Thomson Csf

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2259690A (en) * 1939-04-20 1941-10-21 Univ Leland Stanford Junior High frequency radio apparatus
FR940291A (en) * 1947-01-22 1948-12-08 Materiel Telephonique Slip electrode for wideband velocity modulation amplifier
NL155290B (en) * 1949-08-12 Carlisle Chemical Works PROCESS FOR THE PREPARATION OF AN ORGANOTIN COMPOSITION FOR THE STABILIZATION AND INTERNAL LUBRICATION OF POLYVINYL CHLORIDE RESINS.
US2687490A (en) * 1949-09-22 1954-08-24 Sperry Corp High-frequency beam tube device
US2567674A (en) * 1949-11-08 1951-09-11 Rca Corp Velocity modulated electron discharge device
US2707758A (en) * 1950-12-19 1955-05-03 Sperry Corp Travelling wave tube
US2812467A (en) * 1952-10-10 1957-11-05 Bell Telephone Labor Inc Electron beam system
GB813103A (en) * 1955-08-10 1959-05-06 Varian Associates Velocity-modulation electron tube apparatus

Also Published As

Publication number Publication date
DE1241537B (en) 1967-06-01
US3172005A (en) 1965-03-02

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