GB663869A - Improvements in or relating to ultra high frequency electron discharge apparatus - Google Patents

Improvements in or relating to ultra high frequency electron discharge apparatus

Info

Publication number
GB663869A
GB663869A GB24410/48A GB2441048A GB663869A GB 663869 A GB663869 A GB 663869A GB 24410/48 A GB24410/48 A GB 24410/48A GB 2441048 A GB2441048 A GB 2441048A GB 663869 A GB663869 A GB 663869A
Authority
GB
United Kingdom
Prior art keywords
wave
helix
supported
guide
travelling
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
GB24410/48A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB663869A publication Critical patent/GB663869A/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
    • H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
    • H01J25/38—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without 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
    • 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
    • H01J23/26—Helical slow-wave structures; Adjustment therefor

Landscapes

  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)

Abstract

663,869. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. Sept. 17, 1948 [Oct. 31, 1947], No. 24410/48. Class 39 (i). A travelling-wave amplifier comprises a wave-guide having cylindrical symmetry and having a slow mode of propagation for electromagnetic waves, and means projecting an annular beam of electrons coaxially inside the wave-guide from an electron gun under the influence of an axial static magnetic field and a radial static electric field, the gun being within the magnetic field and the beam imparting energy continuously to the waves propagated in the wave-guide. The waveguide may comprise a helically-wound ribbon 25 supported by three insulating rods 24, of which one is shown, and terminated by radiating antennµ 26, 27 connected to electrodes 23, 30. Along the axis of the helix there is provided an electrode 35 which is supported by insulators 36, 37 and connected to electrodes 21, 34 by spring members 38, 39 which may be provided with a coating to increase the attenuation: an electric field between the electrode 35 and the helix serves to remove ions and this suppress one cause of parasitic oscillations. The distance between two consecutive turns of the helix may be made equal to the distance the electrons travel in half a period. The electron gun may comprise a focusing. member 15 supported by three insulating rods 19 and supporting a mica disc 18 on which the annular cathode 13 is mounted. The Specification as open to inspection under Sect. 91 states that the ribbon may be uniformly attenuated along the helix or at given points. This subject-matter does not appear in the Specification as accepted.
GB24410/48A 1947-10-31 1948-09-17 Improvements in or relating to ultra high frequency electron discharge apparatus Expired GB663869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR663869X 1947-10-31

Publications (1)

Publication Number Publication Date
GB663869A true GB663869A (en) 1951-12-27

Family

ID=9012340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24410/48A Expired GB663869A (en) 1947-10-31 1948-09-17 Improvements in or relating to ultra high frequency electron discharge apparatus

Country Status (4)

Country Link
US (1) US2610308A (en)
BE (1) BE485548A (en)
FR (1) FR956343A (en)
GB (1) GB663869A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112671117A (en) * 2020-11-23 2021-04-16 中国科学技术大学 Source-term electromagnetic energy flow generating device with circumferential poynting vector characteristics

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761088A (en) * 1949-02-22 1956-08-28 Csf Travelling-wave amplifying tube
US2694159A (en) * 1949-03-22 1954-11-09 Bell Telephone Labor Inc Microwave amplifier
US2767344A (en) * 1949-12-30 1956-10-16 Bell Telephone Labor Inc Electronic amplifier
US2742588A (en) * 1950-01-07 1956-04-17 Bell Telephone Labor Inc Electronic amplifier
FR1028662A (en) * 1950-11-30 1953-05-27 Csf Electronic guns for the production of tube bundles and applications to tubes with beam propagation perpendicular to crossed electric and magnetic fields
US2752523A (en) * 1951-05-15 1956-06-26 Int Standard Electric Corp Electron discharge apparatus
US2791711A (en) * 1951-08-24 1957-05-07 Research Corp Apparatus for generating hollow electron beams
NL177251C (en) * 1952-04-01 Us Energy PHOTOMETRIC ANALYSIS DEVICE WITH A ROTOR INCLUDING A NUMBER OF SAMPLE CUVETTES.
US2799797A (en) * 1952-08-29 1957-07-16 Rca Corp Coupling circuit for helical delay lines
US2812467A (en) * 1952-10-10 1957-11-05 Bell Telephone Labor Inc Electron beam system
US2843793A (en) * 1953-03-30 1958-07-15 Bell Telephone Labor Inc Electrostatic focusing of electron beams
DE1071237B (en) * 1953-04-29
US2939045A (en) * 1954-05-12 1960-05-31 Applied Radiation Corp Traveling wave tubes
NL197957C (en) * 1954-08-05
US2887609A (en) * 1954-10-08 1959-05-19 Rca Corp Traveling wave tube
US2941113A (en) * 1957-04-01 1960-06-14 Hughes Aircraft Co Traveling-wave tube
US2959706A (en) * 1958-06-23 1960-11-08 Bell Telephone Labor Inc Electron discharge device
US3020439A (en) * 1958-07-30 1962-02-06 Rca Corp High efficiency traveling wave tubes
FR1235416A (en) * 1959-05-26 1960-07-08 Csf Improvements to traveling wave tubes type o
NL290907A (en) * 1962-03-30
US3383543A (en) * 1964-12-21 1968-05-14 Raytheon Co Gridded ion-drain electrode structure for traveling wave devices
US3364380A (en) * 1965-02-23 1968-01-16 Varian Associates Backward wave oscillator having an ion collecting probe at the downstream end
US3334265A (en) * 1966-06-02 1967-08-01 Horst W A Gerlach Cross-field backward-wave oscillator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064469A (en) * 1933-10-23 1936-12-15 Rca Corp Device for and method of controlling high frequency currents
GB480948A (en) * 1936-07-25 1938-02-25 Frederick Hermes Nicoll Improvements in or relating to cathode ray tubes
NL62817C (en) * 1940-05-04
US2541843A (en) * 1947-07-18 1951-02-13 Philco Corp Electronic tube of the traveling wave type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112671117A (en) * 2020-11-23 2021-04-16 中国科学技术大学 Source-term electromagnetic energy flow generating device with circumferential poynting vector characteristics

Also Published As

Publication number Publication date
FR956343A (en) 1950-01-31
BE485548A (en)
US2610308A (en) 1952-09-09

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