GB884359A - Improvements relating to magnetrons - Google Patents

Improvements relating to magnetrons

Info

Publication number
GB884359A
GB884359A GB3856256A GB3856256A GB884359A GB 884359 A GB884359 A GB 884359A GB 3856256 A GB3856256 A GB 3856256A GB 3856256 A GB3856256 A GB 3856256A GB 884359 A GB884359 A GB 884359A
Authority
GB
United Kingdom
Prior art keywords
anode
annular
cathode
electrode
annular beam
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
GB3856256A
Inventor
Robert Dunsmuir
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB3856256A priority Critical patent/GB884359A/en
Publication of GB884359A publication Critical patent/GB884359A/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
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode

Landscapes

  • Microwave Tubes (AREA)

Abstract

884,359. Magnetrons. A S S O C I A T E D ELECTRICAL INDUSTRIES Ltd. March 18, 1958 [Dec. 18, 1956], No. 38562/56, Class 39(1) Anode D having a slow-wave circuit surrounds an electrode E coaxial with the anode to provide an annular interaction space subject to the action of an axial magnetic field and an annular beam of electrons is caused to emerge axially from an annular emissive face A into the interaction space on a substantially helical orbit. As the annular beam passes close to the anode circuit, and rotates at the exact synchronous velocity, it is highly effective in initiating oscillations which are further sustained by emission from thermionic or secondary-emitting electrode E, or by another annular beam injected into the other end by a cathode replacing collector plate U. As shown, the cathode A is provided with a heater G and is surrounded by a shield H. Anode extension F and the shaping of the end of electrode E suitably shape the electric field acting on the beam ; further electrodes may be provided in the vicinity of the cathode A for this purpose. According to the Provisional Specification there may be two or more cathodes A of different radii and the magnetic pole-piece may act as a collector. Specification 869,603 is referred to. Reference has been directed by the Comptroller to Specification 807,127.
GB3856256A 1956-12-18 1956-12-18 Improvements relating to magnetrons Expired GB884359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3856256A GB884359A (en) 1956-12-18 1956-12-18 Improvements relating to magnetrons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3856256A GB884359A (en) 1956-12-18 1956-12-18 Improvements relating to magnetrons

Publications (1)

Publication Number Publication Date
GB884359A true GB884359A (en) 1961-12-13

Family

ID=10404287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3856256A Expired GB884359A (en) 1956-12-18 1956-12-18 Improvements relating to magnetrons

Country Status (1)

Country Link
GB (1) GB884359A (en)

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