GB629238A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB629238A
GB629238A GB27610/45A GB2761045A GB629238A GB 629238 A GB629238 A GB 629238A GB 27610/45 A GB27610/45 A GB 27610/45A GB 2761045 A GB2761045 A GB 2761045A GB 629238 A GB629238 A GB 629238A
Authority
GB
United Kingdom
Prior art keywords
frequency
cathode
grid
resonant cavity
repeller electrode
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
GB27610/45A
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.)
Space Systems Loral LLC
Original Assignee
Philco Ford 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 Philco Ford Corp filed Critical Philco Ford Corp
Publication of GB629238A publication Critical patent/GB629238A/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
    • H01J25/22—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

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

Abstract

629,238. Velocity-modulated tubes. PHILCO CORPORATION. Oct. 19, 1945, No. 27610. Convention date, Aug. 31, 1944. [Class 39 (i)] [Also in Group XL (c)] A velocity modulation electron discharge device for use in a frequency multiplying circuit comprises a resonant cavity, a repeller electrode, and a control grid, the repeller electrode being at a potential intermediate that of the cathode and the cavity so that the arrangement-is not self-oscillating, and the frequency of the resonant cavity is a multiple of the input frequency which is applied to the grid. The figure shows a " Klystron " (Registered Trade Mark) tube and a source 19 of radio frequency which is applied through a tuned transmission line between the control grid 14 and the cathode. Alternatively, an external band 18 may be used in place of the cathode for this purpose. The potential of the repeller electrode 15 is adjusted by means of a voltage divider 31 to a value intermediate that of the cathode and resonator 17 so as to introduce feedback and increase the output at harmonic frequency in resonator 17, although in the absence of the input to the grid, no oscillations are produced. The source 19 may be frequency-modulated by modulator 33. The frequency deviation of the output is limited by the Q of the resonant cavity 17, which may be controlled by resistive loading. Specification 582,526 is referred to.
GB27610/45A 1944-08-31 1945-10-19 Improvements in or relating to electron discharge devices Expired GB629238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US552139A US2422146A (en) 1944-08-31 1944-08-31 Reflex harmonic generator

Publications (1)

Publication Number Publication Date
GB629238A true GB629238A (en) 1949-09-15

Family

ID=24204079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27610/45A Expired GB629238A (en) 1944-08-31 1945-10-19 Improvements in or relating to electron discharge devices

Country Status (2)

Country Link
US (1) US2422146A (en)
GB (1) GB629238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981889A (en) * 1956-10-18 1961-04-25 Gen Electric Electron tube frequency multiplier of the traveling wave type

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015032A (en) * 1959-03-23 1961-12-26 Jersey Prod Res Co Radiation generating device
CN110931332B (en) * 2019-12-10 2022-06-28 安徽华东光电技术研究所有限公司 Vacuum microwave oscillation source

Family Cites Families (3)

* 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
US2245627A (en) * 1938-06-24 1941-06-17 Univ Leland Stanford Junior Stabilization of frequency
US2250511A (en) * 1938-09-02 1941-07-29 Univ Leland Stanford Junior Oscillator stabilization system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981889A (en) * 1956-10-18 1961-04-25 Gen Electric Electron tube frequency multiplier of the traveling wave type

Also Published As

Publication number Publication date
US2422146A (en) 1947-06-10

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