GB834958A - Improvements in or relating to magnetic focusing systems for travelling wave tubes - Google Patents

Improvements in or relating to magnetic focusing systems for travelling wave tubes

Info

Publication number
GB834958A
GB834958A GB7938/58A GB793858A GB834958A GB 834958 A GB834958 A GB 834958A GB 7938/58 A GB7938/58 A GB 7938/58A GB 793858 A GB793858 A GB 793858A GB 834958 A GB834958 A GB 834958A
Authority
GB
United Kingdom
Prior art keywords
members
projections
region
field
travelling wave
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
GB7938/58A
Other languages
English (en)
Inventor
Francis James Weaver
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.)
Teledyne UK Ltd
Original Assignee
English Electric Valve 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
Priority to NL100798D priority Critical patent/NL100798C/xx
Priority to NL237015D priority patent/NL237015A/xx
Application filed by English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Priority to GB7938/58A priority patent/GB834958A/en
Priority to US798212A priority patent/US2965782A/en
Priority to DEE17281A priority patent/DE1189206B/de
Priority to FR789210A priority patent/FR1222013A/fr
Publication of GB834958A publication Critical patent/GB834958A/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
    • H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing

Landscapes

  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)
GB7938/58A 1958-03-12 1958-03-12 Improvements in or relating to magnetic focusing systems for travelling wave tubes Expired GB834958A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL100798D NL100798C (enrdf_load_stackoverflow) 1958-03-12
NL237015D NL237015A (enrdf_load_stackoverflow) 1958-03-12
GB7938/58A GB834958A (en) 1958-03-12 1958-03-12 Improvements in or relating to magnetic focusing systems for travelling wave tubes
US798212A US2965782A (en) 1958-03-12 1959-03-09 Magnetic focusing systems for travelling wave tubes
DEE17281A DE1189206B (de) 1958-03-12 1959-03-11 Magnetisches Fokussierungssystem zur gebuendelten Fuehrung des Elektronenstrahls einer Wanderfeldroehre
FR789210A FR1222013A (fr) 1958-03-12 1959-03-12 Dispositif de focalisation magnétique pour tubes à ondes progressives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7938/58A GB834958A (en) 1958-03-12 1958-03-12 Improvements in or relating to magnetic focusing systems for travelling wave tubes

Publications (1)

Publication Number Publication Date
GB834958A true GB834958A (en) 1960-05-11

Family

ID=9842670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7938/58A Expired GB834958A (en) 1958-03-12 1958-03-12 Improvements in or relating to magnetic focusing systems for travelling wave tubes

Country Status (5)

Country Link
US (1) US2965782A (enrdf_load_stackoverflow)
DE (1) DE1189206B (enrdf_load_stackoverflow)
FR (1) FR1222013A (enrdf_load_stackoverflow)
GB (1) GB834958A (enrdf_load_stackoverflow)
NL (2) NL100798C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114256040A (zh) * 2021-12-23 2022-03-29 电子科技大学 一种新型行波管慢波结构

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106659A (en) * 1959-03-24 1963-10-08 Kearfott Company Inc Microwave tube construction
US3259788A (en) * 1961-01-19 1966-07-05 Nippon Electric Co Magnetic focussing device for an electron tube
US3353056A (en) * 1964-04-24 1967-11-14 Gen Electric Electron beam focusing system including a magnetically permeable shield enclosing theelectron gun permanent magnet
GB1538430A (en) * 1975-04-03 1979-01-17 English Electric Valve Co Ltd Travelling wave tubes
FR2479558A1 (fr) * 1980-04-01 1981-10-02 Thomson Csf Tube a ondes progressives a cavites couplees et focalisation par aimants permanents alternes, et ensemble amplificateur comprenant un tel tube
DE3015231A1 (de) * 1980-04-21 1981-10-22 Siemens AG, 1000 Berlin und 8000 München Wanderfeldroehre mit periodisch-permanentmagnetischem fokussiersystem

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844754A (en) * 1953-04-29 1958-07-22 Bell Telephone Labor Inc Electron beam focusing system
BE528454A (enrdf_load_stackoverflow) * 1953-04-29
US2867745A (en) * 1953-10-07 1959-01-06 Bell Telephone Labor Inc Periodic magnetic focusing system
NL198576A (enrdf_load_stackoverflow) * 1954-08-26
NL200862A (enrdf_load_stackoverflow) * 1954-10-04
NL201701A (enrdf_load_stackoverflow) * 1954-11-12
NL99653C (enrdf_load_stackoverflow) * 1956-03-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114256040A (zh) * 2021-12-23 2022-03-29 电子科技大学 一种新型行波管慢波结构

Also Published As

Publication number Publication date
NL100798C (enrdf_load_stackoverflow)
FR1222013A (fr) 1960-06-07
DE1189206B (de) 1965-03-18
NL237015A (enrdf_load_stackoverflow)
US2965782A (en) 1960-12-20

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