GB1198482A - Electron Beam Device - Google Patents

Electron Beam Device

Info

Publication number
GB1198482A
GB1198482A GB31960/67A GB3196067A GB1198482A GB 1198482 A GB1198482 A GB 1198482A GB 31960/67 A GB31960/67 A GB 31960/67A GB 3196067 A GB3196067 A GB 3196067A GB 1198482 A GB1198482 A GB 1198482A
Authority
GB
United Kingdom
Prior art keywords
array
electron beam
resonant
cavities
coupled
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
GB31960/67A
Inventor
Donald Aldrich Wilbur
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1198482A publication Critical patent/GB1198482A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/26—Helical slow-wave structures; Adjustment therefor
    • 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
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • 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
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
    • H01J25/40—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field the backward travelling wave being utilised

Landscapes

  • Microwave Tubes (AREA)
  • Microwave Amplifiers (AREA)

Abstract

1,198,482. Velocity-modulated beam tubes. GENERAL ELECTRIC CO. 11 July, 1967 [29 Sept., 1966], No. 31960/67. Heading H1D. An electron beam device, in particular, a travelling-wave tube or klystron, comprises an interaction structure having an array of coupled elements so dimensioned and disposed that the interaction in the array is log periodic with frequency. The term "log periodic" when applied to an array of elements signifies that the elements are so dimensioned and disposed that some electrical property, e.g. impedance or resonant frequency, recurs at a succession of frequencies which form a geometric series. Such an array may have wide-band properties. As shown, the amplifier of Fig. 1 comprises an array 33 consisting of coupled resonant cavities 11-21 of annular form, the relevant dimensions of the cavities being progressively reduced in a fixed ratio from the input end to the output end of the amplifier so that they provide a geometric series of resonant frequencies. The resonant sections incorporate tubes 36-46 of decreasing length which define a drift space for an electron beam travelling from cathode 65 to anode 60. The cavities are coupled by a line 79 which extends from input terminals 78 to output terminals 78<SP>1</SP>. Different frequency components in the input and output signals interact with the electron beam at different positions along the length of the array. In a modification (Fig. 2, not shown), the array consists of a helix of progressively reduced pitch and diameter defining a surface of frusto-conical form. In a further modification the array is in the form of an interdigitated series of annuli which again define a structure of generally frusto-conical form (see Fig. 3, not shown, and Specification 1,198,483). The invention may be applied to devices using both fast and slow waves and operating in either forward or backward modes. The devices may use, in addition to those shown, bifilar and magnetron type arrays. The generating ratio of the geometric series on which the arrays are based preferably lies between 0À90 and 0À95.
GB31960/67A 1966-09-29 1967-07-11 Electron Beam Device Expired GB1198482A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58287966A 1966-09-29 1966-09-29

Publications (1)

Publication Number Publication Date
GB1198482A true GB1198482A (en) 1970-07-15

Family

ID=24330843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31960/67A Expired GB1198482A (en) 1966-09-29 1967-07-11 Electron Beam Device

Country Status (3)

Country Link
US (1) US3571651A (en)
DE (1) DE1541930B2 (en)
GB (1) GB1198482A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754273A (en) * 1970-10-24 1973-08-21 Mitsubishi Electric Corp Corrugated waveguide
US3746915A (en) * 1972-03-15 1973-07-17 Us Army Traveling wave tube with planar equiangular spiral slow wave circuit
FR2457560A1 (en) * 1979-05-23 1980-12-19 Thomson Csf MICROWAVE DELAY LINE COMPRISING A VARIABLE SECTION CONDUCTOR AND PROGRESSIVE WAVE TUBE COMPRISING SUCH A LINE
FR2490872A1 (en) * 1980-09-19 1982-03-26 Thomson Csf COUPLED CAVITY DELAY LINE FOR PROGRESSIVE WAVE TUBE AND PROGRESSIVE WAVE TUBE HAVING SUCH A LINE
US4481444A (en) * 1981-03-23 1984-11-06 Litton Systems, Inc. Traveling wave tubes having backward wave suppressor devices
FR2518802A1 (en) * 1981-12-22 1983-06-24 Thomson Csf DELAY LINE FOR PROGRESSIVE WAVE TUBE
US4496876A (en) * 1982-09-23 1985-01-29 The United States Of America As Represented By The Secretary Of The Navy Frequency-spreading coupler
US4745324A (en) * 1986-05-12 1988-05-17 Litton Systems, Inc. High power switch tube with Faraday cage cavity anode
FR2856840A1 (en) * 2003-06-24 2004-12-31 Thales Sa PROGRESSIVE WAVE TUBE WITH IMPROVED EFFICIENCY

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR969886A (en) * 1948-07-23 1950-12-27 Csf Progressing wave tubes improvements
US3020439A (en) * 1958-07-30 1962-02-06 Rca Corp High efficiency traveling wave tubes

Also Published As

Publication number Publication date
DE1541930A1 (en) 1969-08-28
US3571651A (en) 1971-03-23
DE1541930B2 (en) 1971-02-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees