GB1060150A - Improvements in or relating to electron tubes - Google Patents

Improvements in or relating to electron tubes

Info

Publication number
GB1060150A
GB1060150A GB49296/64A GB4929664A GB1060150A GB 1060150 A GB1060150 A GB 1060150A GB 49296/64 A GB49296/64 A GB 49296/64A GB 4929664 A GB4929664 A GB 4929664A GB 1060150 A GB1060150 A GB 1060150A
Authority
GB
United Kingdom
Prior art keywords
cathode
electrode
length
interaction space
along
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
GB49296/64A
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.)
MO Valve Co Ltd
Original Assignee
MO Valve 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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB49296/64A priority Critical patent/GB1060150A/en
Priority to US511036A priority patent/US3384782A/en
Publication of GB1060150A publication Critical patent/GB1060150A/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
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H01J25/42—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field
    • H01J25/44—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field the forward travelling wave being utilised
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H01J25/42—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and with a magnet system producing an H-field crossing the E-field

Landscapes

  • Microwave Tubes (AREA)

Abstract

1,060,150. Velocity modulated tubes. M-D VALVE CO. Ltd., and A. REDDISH. Dec. 1, 1965 [Dec. 3, 1964], No. 49296/64. Heading HID. In a crossed field travelling wave tube, in which an electron beam travels along an elongated interaction space the opposite faces of which are defined by a cathode and a further, opposed electrode, the spacing between the two electrodes varies along their length in a manner defined by numerical conditions upon the spacing and its first and second rates of change, whereby the electron emission density is rendered relatively uniform along the length of the cathode, with consequent decrease of noise. The interaction space is defined by the emissive surface (8) of the cathode (6), a separate aligned electrode (3), and a further, opposed, electrode (4) which incorporates a folded waveguide delay line having ridged waveguide input and output connections, the electrons being restrained within the interaction space by side shield electrodes (12) and beam-forming electrode (14), and passing to the collector (5) under the influence of the crossed fields. The cathode (6) is in the form of an elongated hollow box of square cross-section, housing a heater helix, and formed of three molybdenum plates and an emissive fourth plate (8) of porous tungsten. To inhibit oscillation, the delay line may either be provided with an attenuating region, or be divided into separate input and output parts at an intermediate point along its length, the adjacent ends of the two parts being provided with reflectionless terminations. The copper envelope block includes coolant channels 27 provided with twisted metal lugs 30 to promote circulation.
GB49296/64A 1964-12-03 1964-12-03 Improvements in or relating to electron tubes Expired GB1060150A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB49296/64A GB1060150A (en) 1964-12-03 1964-12-03 Improvements in or relating to electron tubes
US511036A US3384782A (en) 1964-12-03 1965-12-02 Crossed field electron discharge device having a non-uniform interaction space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49296/64A GB1060150A (en) 1964-12-03 1964-12-03 Improvements in or relating to electron tubes

Publications (1)

Publication Number Publication Date
GB1060150A true GB1060150A (en) 1967-03-01

Family

ID=10451855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49296/64A Expired GB1060150A (en) 1964-12-03 1964-12-03 Improvements in or relating to electron tubes

Country Status (2)

Country Link
US (1) US3384782A (en)
GB (1) GB1060150A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087718A (en) * 1976-05-06 1978-05-02 Varian Associates, Inc. High gain crossed field amplifier
US4207495A (en) * 1978-08-30 1980-06-10 The United States Of America As Represented By The Secretary Of The Air Force Means for improving the collector efficiency of an emitting sole crossed field amplifier

Also Published As

Publication number Publication date
US3384782A (en) 1968-05-21

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