GB782741A - Improvements in or relating to magnetron valves - Google Patents

Improvements in or relating to magnetron valves

Info

Publication number
GB782741A
GB782741A GB11911/54A GB1191154A GB782741A GB 782741 A GB782741 A GB 782741A GB 11911/54 A GB11911/54 A GB 11911/54A GB 1191154 A GB1191154 A GB 1191154A GB 782741 A GB782741 A GB 782741A
Authority
GB
United Kingdom
Prior art keywords
vanes
resonator
cavities
resonators
magnetrons
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
GB11911/54A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB782741A publication Critical patent/GB782741A/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
    • H01J25/58—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)

Abstract

782,741. Magnetrons. TELEFUNKEN GES. April 26, 1954 [April 24, 1953], No. 11911 /54. Class 39(1). A magnetron has a number of resonant cavities, formed by inwardly projecting vanes, effectively divided by means of an energy coupling member into a plurality of mutually decoupled resonators ; the cavities of one resonator interlace with those of another. In Fig. 1 the cavities formed by vanes 1, 2, 3, 4 interlace with those formed by vanes 5, 6, 7, 8. Coupling to one set of cavities may be by a symmetrical loop, at vane 5, or by an unsymmetrical loop, at vane 3. One resonator may be unloaded with a high Q and serves for frequency stabilization or, control oscillations may be applied to one of the resonators. Different D.C. voltages may be applied to the various anode vanes to determine which, or whether both of the resonators are to be selfoscillating ; the vanes are insulated in respect of D.C. from the anode cylinder and have separate leads. Strapping may be provided for each resonator or set of cavities. Energy may be coupled in or out between straps. In Fig. 4 two sets of vanes 11, 13 and 17, 18 are oblique to the main axis in opposite directions, but their inner ends are in the same plane. Movable tuning rings 20, 21 are provided. Tuning of the loaded resonator with low Q may be unnecessary. To obtain a high Q for the unloaded resonator the surface conductivity may be increased by a polished silver coating. Magnetrons having more than two e.g. three mutually recoupled resonators may be used as heterodyne mixers or cascade amplifiers.
GB11911/54A 1953-04-24 1954-04-26 Improvements in or relating to magnetron valves Expired GB782741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET7740A DE1084384B (en) 1953-04-24 1953-04-24 Multi-slot magnetic field tubes for generating very short frequency-stabilized oscillations

Publications (1)

Publication Number Publication Date
GB782741A true GB782741A (en) 1957-09-11

Family

ID=7545671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11911/54A Expired GB782741A (en) 1953-04-24 1954-04-26 Improvements in or relating to magnetron valves

Country Status (5)

Country Link
US (1) US2849652A (en)
DE (1) DE1084384B (en)
FR (1) FR1103583A (en)
GB (1) GB782741A (en)
NL (1) NL100378C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411034A (en) * 1965-06-11 1968-11-12 Sfd Lab Inc Microwave amplifier tube having capacitive loading means for the slow wave circuit
US5084651A (en) * 1987-10-29 1992-01-28 Farney George K Microwave tube with directional coupling of an input locking signal
CN114664616B (en) * 2022-03-23 2023-05-23 电子科技大学 Axial cascading relativistic magnetron based on full-cavity coupling structure frequency locking and phase locking

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT145988B (en) * 1934-09-04 1936-05-25 Telefunken Gmbh Circuit of an externally controlled magnetron.
FR805927A (en) * 1935-05-18 1936-12-03 Telefunken Gmbh External control assembly in particular modulation
FR851554A (en) * 1938-03-16 1940-01-11 Telefunken Gmbh Improvements in mounting methods for magnetrons
CH227683A (en) * 1940-04-24 1943-06-30 Licentia Gmbh Time-of-flight tube with at least one toroidal cavity resonator.
US2474898A (en) * 1944-04-05 1949-07-05 Bell Telephone Labor Inc Electromagnetic resonator of the magnetron type
US2635209A (en) * 1946-03-01 1953-04-14 Albert M Clogston Strapped magnetron
US2485401A (en) * 1946-06-04 1949-10-18 Gen Electric Magnetron
US2766403A (en) * 1952-06-14 1956-10-09 Raytheon Mfg Co High frequency electrical oscillators

Also Published As

Publication number Publication date
US2849652A (en) 1958-08-26
DE1084384B (en) 1960-06-30
FR1103583A (en) 1955-11-04
NL100378C (en)

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