GB688112A - Improvements in and relating to magnetron oscillators - Google Patents

Improvements in and relating to magnetron oscillators

Info

Publication number
GB688112A
GB688112A GB28893/47A GB2889347A GB688112A GB 688112 A GB688112 A GB 688112A GB 28893/47 A GB28893/47 A GB 28893/47A GB 2889347 A GB2889347 A GB 2889347A GB 688112 A GB688112 A GB 688112A
Authority
GB
United Kingdom
Prior art keywords
anodes
magnetron
tank
opposite
frequency
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
GB28893/47A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB688112A publication Critical patent/GB688112A/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
    • H01J25/58—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 having a number of resonators; having a composite resonator, e.g. a helix
    • 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
    • H01J25/54—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 having only one cavity or other resonator, e.g. neutrode tubes
    • 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
    • H01J25/58—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 having a number of resonators; having a composite resonator, e.g. a helix
    • H01J25/587—Multi-cavity magnetrons
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/01—Generation of oscillations using transit-time effects using discharge tubes
    • H03B9/10—Generation of oscillations using transit-time effects using discharge tubes using a magnetron

Landscapes

  • Control Of High-Frequency Heating Circuits (AREA)
  • Microwave Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Particle Accelerators (AREA)

Abstract

688,112. Magnetron oscillators. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 29, 1947 [Oct. 31, 1946], No. 28893/47. Class 39(i) [Also in Group XL(c)] A magnetron oscillator comprises a plurality of anodes arranged around a central cathode, and separate tank and load circuits connected to opposite anodes 18, 19 as in Fig. 2, or to opposite pairs of anodes 1, 2 and 4, 5 as in Fig. 1, or 45, 46 and 47, 48 as in Fig. 4. Intermediate anodes 20, 21 in Fig. 2, 3, 6 in Fig. 1, and 49, 50 in Fig. 4, differing in high frequency from the adjacent anodes, serve as shields between the tank and load circuits. The tank circuit, is short-circuited and serves solely to determine the frequency of the system, and the load circuit serves solely for deriving the output energy. In Fig. 2 these circuits are coaxial lines, in Figs. 1 and 4 Lecher lines. The tank circuit is tunable by adjusting a slidable short-circuiting member, 38 in Fig. 2, to vary the frequency. The anodes 18, 19 of Fig. 2 are supported from insulating end closures 30, 31 of the metal envelopes 17. Magnetic pole-pieces, permanent or of soft iron, are fixed to the envelope 17 opposite the ends of the cathode 22. Specification 641,489 is referred to. The Specification as open to inspection under Sect. 91, refers also to a strapped multi-cavity magnetron'in which the strapping is omitted from a pair of adjacent anodes. This subject-matter does not appear in the Specification as accepted.
GB28893/47A 1946-10-31 1947-10-29 Improvements in and relating to magnetron oscillators Expired GB688112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US706896A US2549846A (en) 1946-10-31 1946-10-31 Electron coupled magnetron oscillator

Publications (1)

Publication Number Publication Date
GB688112A true GB688112A (en) 1953-02-25

Family

ID=24839523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28893/47A Expired GB688112A (en) 1946-10-31 1947-10-29 Improvements in and relating to magnetron oscillators

Country Status (5)

Country Link
US (1) US2549846A (en)
CH (1) CH270409A (en)
FR (2) FR965200A (en)
GB (1) GB688112A (en)
NL (3) NL79785C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842713A (en) * 1953-07-03 1958-07-08 Raytheon Mfg Co Electron discharge device
US2832007A (en) * 1955-05-11 1958-04-22 Raytheon Mfg Co Radiant energy generation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL46806C (en) * 1936-06-05
US2112822A (en) * 1936-11-25 1938-04-05 Rca Corp Radio receiving system for microwaves

Also Published As

Publication number Publication date
US2549846A (en) 1951-04-24
CH270409A (en) 1950-08-31
FR955106A (en) 1950-01-10
NL134978B (en)
FR965200A (en) 1950-09-05
NL79785C (en)
NL137605B (en)

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