GB1381108A - Magnetrons - Google Patents

Magnetrons

Info

Publication number
GB1381108A
GB1381108A GB5943471A GB5943471A GB1381108A GB 1381108 A GB1381108 A GB 1381108A GB 5943471 A GB5943471 A GB 5943471A GB 5943471 A GB5943471 A GB 5943471A GB 1381108 A GB1381108 A GB 1381108A
Authority
GB
United Kingdom
Prior art keywords
anode
dec
cavities
auxiliary
emissive surface
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
GB5943471A
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1381108A publication Critical patent/GB1381108A/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
    • 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
    • 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
    • H01J25/593—Rising-sun magnetrons

Landscapes

  • Microwave Tubes (AREA)

Abstract

1381108 Magnetrons THOMSON-CSF 21 Dec 1971 [22 Dec 1970] 59434/71 Heading H1D Stable operation in the # mode of a multicavity magnetron having an anode formed of n cavities is produced by the incorporation of an auxiliary coaxial structure formed by n adjacent resonant circuits each of which produces coupling between a pair of adjacent anode cavities, the shortest distance between the emissive surface of the cathode and the auxiliary structure being greater than that between the emissive surface and the anode. The auxiliary structure may be either radially (Figs. 4 to 7, not shown) or axially (Figs. 1 to 3, not shown) displaced with respect to the anode; it may be either spaced therefrom (Figs. 1 to 4) or integral therewith (Figs. 5 to 7); and it may be axially displaceable to act as a tuning arrangement.
GB5943471A 1970-12-22 1971-12-21 Magnetrons Expired GB1381108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7046248A FR2119146A5 (en) 1970-12-22 1970-12-22

Publications (1)

Publication Number Publication Date
GB1381108A true GB1381108A (en) 1975-01-22

Family

ID=9066193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5943471A Expired GB1381108A (en) 1970-12-22 1971-12-21 Magnetrons

Country Status (4)

Country Link
US (1) US3742293A (en)
DE (1) DE2163860A1 (en)
FR (1) FR2119146A5 (en)
GB (1) GB1381108A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289992A (en) * 1979-06-04 1981-09-15 Kapitonova Zinaida P Microwave device
WO1982001101A1 (en) * 1980-09-22 1982-04-01 Yamamoto K Magnetron
JPH073921B2 (en) * 1987-12-10 1995-01-18 日本電気株式会社 Waveguide bandpass filter

Also Published As

Publication number Publication date
DE2163860A1 (en) 1972-07-13
FR2119146A5 (en) 1972-08-04
US3742293A (en) 1973-06-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees