GB1528156A - Travelling wave tubes - Google Patents

Travelling wave tubes

Info

Publication number
GB1528156A
GB1528156A GB990975A GB990975A GB1528156A GB 1528156 A GB1528156 A GB 1528156A GB 990975 A GB990975 A GB 990975A GB 990975 A GB990975 A GB 990975A GB 1528156 A GB1528156 A GB 1528156A
Authority
GB
United Kingdom
Prior art keywords
travelling
wave
ferromagnetic
axial extensions
wave tubes
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
GB990975A
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 claimed from GB768273A external-priority patent/GB1451956A/en
Application filed by English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Priority to GB990975A priority Critical patent/GB1528156A/en
Priority to DE19752532989 priority patent/DE2532989C3/en
Priority to US05/658,826 priority patent/US4041349A/en
Priority to JP2205476A priority patent/JPS51111050A/en
Priority to FR7606276A priority patent/FR2304172A2/en
Publication of GB1528156A publication Critical patent/GB1528156A/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
    • 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
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems

Landscapes

  • Microwave Tubes (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

1528156 Travelling-wave tubes ENGLISH ELECTRIC VALVE CO Ltd 19 Dec 1975 [8 March 1975] 9909/75 Addition to 1451956 Heading H1D The fundamental coupled-cavity travelling- wave tube disclosed in the parent Specification is modified by the incorporation of ferromagnetic axial extensions 5 at the inner ends of the ferromagnetic plates 1 of the clover-leaf slow-wave structure, to increase the peak magnetic field of the periodic permanent magnet focusing system at the beam path. To preserve electrical symmetry, the corresponding copper plates 4 are provided with similar copper axial extensions 10.
GB990975A 1973-02-16 1975-03-08 Travelling wave tubes Expired GB1528156A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB990975A GB1528156A (en) 1973-02-16 1975-03-08 Travelling wave tubes
DE19752532989 DE2532989C3 (en) 1973-02-16 1975-07-23 Traveling wave tube
US05/658,826 US4041349A (en) 1973-02-16 1976-02-17 Travelling wave tubes
JP2205476A JPS51111050A (en) 1975-03-08 1976-03-01 Traveling wave tubu
FR7606276A FR2304172A2 (en) 1973-02-16 1976-03-05 PROGRESSIVE WAVE TUBE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB768273A GB1451956A (en) 1973-02-16 1973-02-16 Travelling wave tubes
GB990975A GB1528156A (en) 1973-02-16 1975-03-08 Travelling wave tubes

Publications (1)

Publication Number Publication Date
GB1528156A true GB1528156A (en) 1978-10-11

Family

ID=26241594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB990975A Expired GB1528156A (en) 1973-02-16 1975-03-08 Travelling wave tubes

Country Status (2)

Country Link
DE (1) DE2532989C3 (en)
GB (1) GB1528156A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3050257C1 (en) * 1980-01-28 1984-10-04 Sergej Sergeevič Drozdov Alternating periodic magnetic focusing system

Also Published As

Publication number Publication date
DE2532989B2 (en) 1977-09-15
DE2532989A1 (en) 1976-09-09
DE2532989C3 (en) 1978-05-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee