GB832971A - Improvements relating to multi-cavity magnetrons - Google Patents

Improvements relating to multi-cavity magnetrons

Info

Publication number
GB832971A
GB832971A GB36340/55A GB3634055A GB832971A GB 832971 A GB832971 A GB 832971A GB 36340/55 A GB36340/55 A GB 36340/55A GB 3634055 A GB3634055 A GB 3634055A GB 832971 A GB832971 A GB 832971A
Authority
GB
United Kingdom
Prior art keywords
cavities
unity
dec
cavity
directional coupler
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
GB36340/55A
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.)
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
Priority to GB36340/55A priority Critical patent/GB832971A/en
Priority to US629106A priority patent/US2943235A/en
Priority to FR1166539D priority patent/FR1166539A/en
Publication of GB832971A publication Critical patent/GB832971A/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
    • H01J25/587—Multi-cavity magnetrons

Landscapes

  • Microwave Tubes (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Abstract

832,971. Magnetrons. BRITISH THOMSON-HOUSTON CO. Ltd. Dec. 12, 1956 [Dec. 19, 1955], No. 36340/55. Class 39(1). A multi-cavity magnetron having an odd number of resonator cavities is coupled to an external load through a directional coupler so that waves rotating in one direction only are lightly coupled and waves rotating in the opposite direction are heavily damped. The travelling wave maintained in the lightly coupled direction may in the reverse direction to the electron stream which interacts with a backward space harmonic component of the wave. In Fig. 4, the directional coupler is a "rat race" bridge circuit with outlets 1, 2, 3, 4. Operation may be restricted to a desired mode by (1) connecting alternate segments S, Fig. 1, by means of a continuous strap 3 which makes two complete circuits round the cavities to provide a closed loop of two turns, (2) having a number of cavities which is an odd multiple of three greater than unity and connecting the segments in groups of three by means of circular straps, or (3) having a number of cavities which is an odd multiple of three greater than unity and making every third cavity larger than the others.
GB36340/55A 1955-12-19 1955-12-19 Improvements relating to multi-cavity magnetrons Expired GB832971A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB36340/55A GB832971A (en) 1955-12-19 1955-12-19 Improvements relating to multi-cavity magnetrons
US629106A US2943235A (en) 1955-12-19 1956-12-18 High frequency oscillators
FR1166539D FR1166539A (en) 1955-12-19 1956-12-19 High frequency oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36340/55A GB832971A (en) 1955-12-19 1955-12-19 Improvements relating to multi-cavity magnetrons

Publications (1)

Publication Number Publication Date
GB832971A true GB832971A (en) 1960-04-21

Family

ID=10387250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36340/55A Expired GB832971A (en) 1955-12-19 1955-12-19 Improvements relating to multi-cavity magnetrons

Country Status (3)

Country Link
US (1) US2943235A (en)
FR (1) FR1166539A (en)
GB (1) GB832971A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490648A (en) * 1982-09-29 1984-12-25 The United States Of America As Represented By The United States Department Of Energy Stabilized radio frequency quadrupole

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429291A (en) * 1943-07-01 1947-10-21 Westinghouse Electric Corp Magnetron
BE470767A (en) * 1945-02-17
FR948762A (en) * 1947-06-13 1949-08-10 Csf Tube of the magnetron type for ultra-short waves usable more particularly as an amplifier
US2759099A (en) * 1954-05-20 1956-08-14 Rca Corp Plural-source coupling arrangements

Also Published As

Publication number Publication date
FR1166539A (en) 1958-11-12
US2943235A (en) 1960-06-28

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