GB1009394A - Improvements in electron-beam tubes for parametric amplification - Google Patents

Improvements in electron-beam tubes for parametric amplification

Info

Publication number
GB1009394A
GB1009394A GB37354/62A GB3735462A GB1009394A GB 1009394 A GB1009394 A GB 1009394A GB 37354/62 A GB37354/62 A GB 37354/62A GB 3735462 A GB3735462 A GB 3735462A GB 1009394 A GB1009394 A GB 1009394A
Authority
GB
United Kingdom
Prior art keywords
gun
electron
anodes
oct
parametric amplification
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
GB37354/62A
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1009394A publication Critical patent/GB1009394A/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
    • H01J25/49—Tubes using the parametric principle, e.g. for parametric amplification

Landscapes

  • Microwave Tubes (AREA)

Abstract

1,009,394. Space-charge wave tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 2, 1962 [Oct. 4, 1961], No. 37354/62. Heading H1D. In an electron-beam tube for parametric amplification the electron gun, which has a plurality of anodes, is arranged to retard the electron beam when subjected to a magnetic focusing field of different strength from that in the region of beam-couplers and thereby to expand the beam cross-section within the gun to reduce noise. The effect is achieved by applying particular voltages to the six anodes of the gun and examples are given in the Specification. The gun may be of conventional construction, employing Brillouin focusing, otherwise the necessary change in magnetic field is achieved by surrounding the cathode 51 with a ring 65 of ferromagnetic material, supported between ceramic spacers. The tube is of quadruple type of known construction, the signal couplers comprising parallel plates (Fig. 1, not shown) or cavities. It is stated that the noise suppression obtained is effective for both the fast and slow waves.
GB37354/62A 1961-10-04 1962-10-02 Improvements in electron-beam tubes for parametric amplification Expired GB1009394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL269926 1961-10-04

Publications (1)

Publication Number Publication Date
GB1009394A true GB1009394A (en) 1965-11-10

Family

ID=19753326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37354/62A Expired GB1009394A (en) 1961-10-04 1962-10-02 Improvements in electron-beam tubes for parametric amplification

Country Status (4)

Country Link
US (1) US3268754A (en)
FR (1) FR1335390A (en)
GB (1) GB1009394A (en)
NL (1) NL269926A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4555646A (en) * 1981-10-07 1985-11-26 Varian Associates, Inc. Adjustable beam permanent-magnet-focused linear-beam microwave tube
US5319339A (en) * 1993-03-08 1994-06-07 The United States Of America As Represented By The Secretary Of The Army Tubular structure having transverse magnetic field with gradient

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801361A (en) * 1948-12-10 1957-07-30 Bell Telephone Labor Inc High frequency amplifier
BE520612A (en) * 1952-06-12
US2909704A (en) * 1953-10-09 1959-10-20 Rca Corp Electron gun
US2956198A (en) * 1955-06-10 1960-10-11 Bell Telephone Labor Inc Traveling wave tubes
DE1276217B (en) * 1958-06-25 1968-08-29 Siemens Ag Electron beam tubes with speed modulation, especially running field tubes
US2959740A (en) * 1959-05-01 1960-11-08 Zenith Radio Corp Parametric amplifier modulation expander
NL239935A (en) * 1959-06-05
US3178646A (en) * 1960-04-20 1965-04-13 Bell Telephone Labor Inc Cyclotron wave quadrupole type structure using only two poles

Also Published As

Publication number Publication date
FR1335390A (en) 1963-08-16
US3268754A (en) 1966-08-23
NL269926A (en)

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