GB1227622A - - Google Patents

Info

Publication number
GB1227622A
GB1227622A GB1672268A GB1227622DA GB1227622A GB 1227622 A GB1227622 A GB 1227622A GB 1672268 A GB1672268 A GB 1672268A GB 1227622D A GB1227622D A GB 1227622DA GB 1227622 A GB1227622 A GB 1227622A
Authority
GB
United Kingdom
Prior art keywords
fingers
slots
wave
comb
tube
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
GB1672268A
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 filed Critical
Publication of GB1227622A publication Critical patent/GB1227622A/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
    • H01J25/34—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)

Abstract

1,227,622. Travelling-wave tubes. A. M. ALEXEENKO, J. D. SAMORODOV, and A. S. TAGER. 8 April, 1968, No. 16722/68. Heading H1D. In an electrostatically focused backwardwave travelling-wave tube having a slow-wave structure incorporating a plurality of apertured fingers spaced along and projecting into the electron stream, each finger is provided with a plurality of beam-passage apertures, whereby the stream progresses down the tube in the form of a corresponding plurality of beams, and electrostatic focusing is provided by the application of different potentials to alternate fingers. As shown, the slow-wave structure is of interdigitated type, formed of two combs 12 and 12<SP>1</SP>, the fingers 7 of which are provided with a set of parallel slots 8, comb 12 being conductively connected to the tube envelope, and comb 12<SP>1</SP> being insulated therefrom by members 11, and coupled to the output waveguide 4 and the wave absorber 5 by high frequency chokes 14. The stream emitted from the gun cathode 9 is split into a plurality of beams by a focusing electrode 10, which is apertured in a manner identical to that of the fingers and is held at or below cathode potential, and the first finger of comb 12 acts as the gun anode. The apertures are preferably slots, as shown-which slots may be interconnected by auxiliary slots to facilitate manufacture-but may alternatively be of circular, square or cruciform shape.
GB1672268A 1968-02-21 1968-04-08 Expired GB1227622A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR140625 1968-02-21
US70935068A 1968-02-29 1968-02-29
GB1672268 1968-04-08

Publications (1)

Publication Number Publication Date
GB1227622A true GB1227622A (en) 1971-04-07

Family

ID=27244789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1672268A Expired GB1227622A (en) 1968-02-21 1968-04-08

Country Status (3)

Country Link
US (1) US3548247A (en)
FR (1) FR1564703A (en)
GB (1) GB1227622A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10483075B2 (en) 2015-12-18 2019-11-19 Nec Network And Sensor Systems, Ltd. Slow wave circuit and traveling wave tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810854A (en) * 1951-10-06 1957-10-22 Bell Telephone Labor Inc Serpentine traveling wave tube
US3002123A (en) * 1957-01-11 1961-09-26 Rca Corp Traveling wave tube structure
FR1195495A (en) * 1958-04-30 1959-11-17 Csf Traveling wave type broadband amplifier with output cavities
US3114072A (en) * 1960-05-31 1963-12-10 Rca Corp Electrostatically focused traveling wave tubes
GB1066644A (en) * 1963-07-12 1967-04-26 Matsushita Electronics Corp Hermetic window construction of waveguide for extremely high frequency electronic tubes
US3400297A (en) * 1964-07-27 1968-09-03 Hitachi Ltd Traveling-wave type electron tube utilizing interaction between beam and te20 waveguide mode

Also Published As

Publication number Publication date
US3548247A (en) 1970-12-15
FR1564703A (en) 1969-04-25

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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