GB1435740A - Velocity modulation tube - Google Patents

Velocity modulation tube

Info

Publication number
GB1435740A
GB1435740A GB4975073A GB4975073A GB1435740A GB 1435740 A GB1435740 A GB 1435740A GB 4975073 A GB4975073 A GB 4975073A GB 4975073 A GB4975073 A GB 4975073A GB 1435740 A GB1435740 A GB 1435740A
Authority
GB
United Kingdom
Prior art keywords
resonator
floating
circuit
resonant frequency
circuits
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
GB4975073A
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.)
NEC Corp
Original Assignee
Nippon Electric 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Publication of GB1435740A publication Critical patent/GB1435740A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02Tubes 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
    • H01J25/10Klystrons, 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
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H7/00Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
    • H05H7/14Vacuum chambers
    • H05H7/18Cavities; Resonators

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microwave Tubes (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

1435740 Klystrons NIPPON ELECTRIC CO Ltd 25 Oct 1973 [25 Oct 1972] 49750/73 Heading H1D In a klystron having an input resonator circuit 16, at least one first floating resonator circuit 21, at least one second floating resonator circuit-two, 26 and 31, as shown-and an output resonator circuit 36, the conversion efficiency is increased by arranging that the input circuit has a Q value at least equal to that of the first floating resonator circuits and a resonant frequency adjacent the lowest frequency of the passband; the first floating resonator circuits have a resonant frequency adjacent the highest frequency of the passband; and the second floating resonator circuits have a resonant frequency higher than the highest frequency of the passband, and higher than the resonant frequency of the first floating resonator circuits. All the resonator circuits are tunable by plungers, e.g. 18, and the Q of the first resonator circuit 21 is adjustable by connection of a resistor to the coupling loop 24. As described, the Q values of the successive resonators of Fig. 1 are 195, 140, 650, 650, and 5. The resonators may be of extended interaction type, e.g. of coupled cavity construction.
GB4975073A 1972-10-25 1973-10-25 Velocity modulation tube Expired GB1435740A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10680072A JPS535110B2 (en) 1972-10-25 1972-10-25

Publications (1)

Publication Number Publication Date
GB1435740A true GB1435740A (en) 1976-05-12

Family

ID=14442935

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4975073A Expired GB1435740A (en) 1972-10-25 1973-10-25 Velocity modulation tube

Country Status (5)

Country Link
JP (1) JPS535110B2 (en)
DE (1) DE2353555C2 (en)
FR (1) FR2217792B1 (en)
GB (1) GB1435740A (en)
NL (1) NL169799C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5169355A (en) * 1974-12-06 1976-06-15 Nippon Electric Co Kokoritsu 4 kudosokudohenchokan
JPS51115768A (en) * 1975-04-03 1976-10-12 Nec Corp Wide-band speed modurated tube
JPS54130789U (en) * 1978-03-04 1979-09-11
JPS5556653U (en) * 1978-10-13 1980-04-17
JPS5953047U (en) * 1982-09-30 1984-04-07 藤 精二 hat
JPS63158928U (en) * 1987-04-01 1988-10-18

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028519A (en) * 1959-01-02 1962-04-03 Varian Associates High frequency tube apparatus and coupled cavity output circuit therefor
US3169206A (en) * 1959-08-06 1965-02-09 Varian Associates High frequency tube method and apparatus
DE1298200B (en) * 1960-09-06 1969-06-26 Varian Associates Multi-chamber klystron amplifier tubes with a wide range
US3622834A (en) * 1970-04-15 1971-11-23 Varian Associates High-efficiency velocity modulation tube employing harmonic prebunching
US3594606A (en) * 1970-04-15 1971-07-20 Varian Associates Velocity modulation tube employing cascaded harmonic prebunching
US3725721A (en) * 1971-05-17 1973-04-03 Varian Associates Apparatus for loading cavity resonators of tunable velocity modulation tubes

Also Published As

Publication number Publication date
DE2353555C2 (en) 1983-08-11
FR2217792B1 (en) 1978-08-04
DE2353555A1 (en) 1974-05-30
NL7314581A (en) 1974-04-29
FR2217792A1 (en) 1974-09-06
NL169799C (en) 1982-08-16
JPS4965175A (en) 1974-06-24
NL169799B (en) 1982-03-16
JPS535110B2 (en) 1978-02-23

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19931024