GB974153A - Improvements in or relating to travelling wave tubes - Google Patents

Improvements in or relating to travelling wave tubes

Info

Publication number
GB974153A
GB974153A GB207/63A GB20763A GB974153A GB 974153 A GB974153 A GB 974153A GB 207/63 A GB207/63 A GB 207/63A GB 20763 A GB20763 A GB 20763A GB 974153 A GB974153 A GB 974153A
Authority
GB
United Kingdom
Prior art keywords
emitting surface
delay line
along
straighteners
jan
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
GB207/63A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB974153A publication Critical patent/GB974153A/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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H01J23/0876—Magnetic focusing arrangements with arrangements improving the linearity and homogeniety of the axial field, e.g. field straightener

Landscapes

  • Microwave Tubes (AREA)

Abstract

974,153. Travelling-wave tubes. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Jan. 2, 1963 [Jan. 11, 1962], No. 207/63. Heading H1D. In a low-noise travelling-wave tube comprising an electron emitting surface 2<SP>1</SP>, a delay line 3 and a collector 4, the electron beam is shaped by an external magnetic field so that over a predetermined portion near the cathode it has a cross-section diameter substantially the same as that of the emitting surface, whilst the diameter along the delay line is smaller than that of the emitting surface. The magnetic field is formed by permanent magnets 5, polepieces 6 and field straighteners 7, which straighteners are disposed closer together along the gun region of the tube than along the delay line region.
GB207/63A 1962-01-11 1963-01-02 Improvements in or relating to travelling wave tubes Expired GB974153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR884505A FR1318760A (en) 1962-01-11 1962-01-11 Low noise o-type traveling wave tube for centimeter and millimeter waves

Publications (1)

Publication Number Publication Date
GB974153A true GB974153A (en) 1964-11-04

Family

ID=8770266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB207/63A Expired GB974153A (en) 1962-01-11 1963-01-02 Improvements in or relating to travelling wave tubes

Country Status (3)

Country Link
US (1) US3307064A (en)
FR (1) FR1318760A (en)
GB (1) GB974153A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058445A (en) * 1979-09-11 1981-04-08 Dodonov J I Microwave device of the magnetron type
EP2551988A3 (en) * 2011-07-28 2013-03-27 General Electric Company Dielectric materials for power transfer system
EP2551250B1 (en) * 2011-07-28 2016-12-07 General Electric Company Dielectric materials for power tranfer system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840752A (en) * 1954-12-30 1958-06-24 Bell Telephone Labor Inc Backward wave tube
DE1276217B (en) * 1958-06-25 1968-08-29 Siemens Ag Electron beam tubes with speed modulation, especially running field tubes
FR1277324A (en) * 1960-10-14 1961-12-01 Csf Focusing system for traveling wave tubes

Also Published As

Publication number Publication date
FR1318760A (en) 1963-02-22
US3307064A (en) 1967-02-28

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