GB696810A - Improvements in electron discharge apparatus of the velocity modulation type - Google Patents

Improvements in electron discharge apparatus of the velocity modulation type

Info

Publication number
GB696810A
GB696810A GB17969/46A GB1796946A GB696810A GB 696810 A GB696810 A GB 696810A GB 17969/46 A GB17969/46 A GB 17969/46A GB 1796946 A GB1796946 A GB 1796946A GB 696810 A GB696810 A GB 696810A
Authority
GB
United Kingdom
Prior art keywords
wires
velocity modulation
electron discharge
velocity
modulation type
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
GB17969/46A
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 GB696810A publication Critical patent/GB696810A/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
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/24—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection

Landscapes

  • Lasers (AREA)
  • Microwave Tubes (AREA)

Abstract

696,810. Velocity-modulated tubes. BRITISH THOMSON-HOUSTON CO., Ltd. June 14, 1946 [March 15, 1945], No. 17969/46. Class 39(i) [Also in Group XL(c)] An electron discharge device of the velocity modulation type has a multiple resonating structure formed by a grid or network of fine wires, Fig. 2. Each pair of wires 5 and 6 is in the same vertical plane, and are connected by the transverse pair of wires 7, which are spaced apart a multiple of a half wavelength of the operating frequency. The structure is traversed vertically by the electron stream, each separate rectangular cell bounded by the wires 5, 6, and 7 forming a resonator. Fig. 1 shows this resonating structure employed in a velocity modulation device of the reflex type, having a cathode 1, control grid 3 and reflector electrode 4. Fig. 3 (not shown) illustrates the positioning of the device of Fig. 1 at the focus of a parabolic reflector to produce a beam of radiation.
GB17969/46A 1945-03-15 1946-06-14 Improvements in electron discharge apparatus of the velocity modulation type Expired GB696810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US582917A US2653272A (en) 1945-03-15 1945-03-15 Ultrahigh-frequency generator

Publications (1)

Publication Number Publication Date
GB696810A true GB696810A (en) 1953-09-09

Family

ID=24330960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17969/46A Expired GB696810A (en) 1945-03-15 1946-06-14 Improvements in electron discharge apparatus of the velocity modulation type

Country Status (2)

Country Link
US (1) US2653272A (en)
GB (1) GB696810A (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22580E (en) * 1944-12-19 Ultra high frequency device with conical collector
US1353976A (en) * 1916-03-20 1920-09-28 Western Electric Co Vacuum-tube device
US1465381A (en) * 1918-11-02 1923-08-21 Western Electric Co Electrode and its construction
US1666071A (en) * 1926-05-22 1928-04-17 Perryman Electric Company Inc Grid for vacuum tubes
US1844319A (en) * 1929-09-25 1932-02-09 Hatt Emil Means for producing radio waves
US2087252A (en) * 1932-07-26 1937-07-20 Gunn Ross Ultra-high frequency tube
US2115866A (en) * 1932-11-16 1938-05-03 Telefunken Gmbh Double grid electron tube and circuit
US2043659A (en) * 1933-07-21 1936-06-09 Telefunken Gmbh Electron discharge device
US2105924A (en) * 1935-10-03 1938-01-18 Bell Telephone Labor Inc Electron discharge device
US2205475A (en) * 1936-05-12 1940-06-25 Telefunken Gmbh Ultra-high frequency receiver
US2244747A (en) * 1938-05-24 1941-06-10 Beard Of Trustees Of The Lelan Thermionic vacuum tube and circuits
GB560982A (en) * 1939-10-16 1944-05-01 George William Walton Improvements in or relating to generators of ultra-short electromagnetic waves

Also Published As

Publication number Publication date
US2653272A (en) 1953-09-22

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