GB689290A - Improvements relating to high-frequency electro-magnetic wave devices - Google Patents

Improvements relating to high-frequency electro-magnetic wave devices

Info

Publication number
GB689290A
GB689290A GB15492/51A GB1549251A GB689290A GB 689290 A GB689290 A GB 689290A GB 15492/51 A GB15492/51 A GB 15492/51A GB 1549251 A GB1549251 A GB 1549251A GB 689290 A GB689290 A GB 689290A
Authority
GB
United Kingdom
Prior art keywords
spirals
wave
travelling
june
electron stream
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
GB15492/51A
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.)
Leland Stanford Junior University
Original Assignee
Leland Stanford Junior University
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 Leland Stanford Junior University filed Critical Leland Stanford Junior University
Publication of GB689290A publication Critical patent/GB689290A/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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
    • H01J23/48—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type
    • H01J23/50—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type the interaction circuit being a helix or derived from a helix

Landscapes

  • Microwave Tubes (AREA)

Abstract

689,290. Travelling-wave tubes. LELAND STANFORD JUNIOR UNIVERSITY, BOARD OF TRUSTEES OF. June 29,1951 [June 30,1950], No. 15492/51. Class 39(i) [Also in Group XL(b)] A device for guiding electromagnetic waves consists of a helix which passes into a flat spiral, at least at one of its ends. In the travelling-wave tube shown the two helices 5 and 7 have spirals 21, 23, 31 and 31<SP>1</SP> at their ends. An insulating disc 25 having a carbon coating is placed between spirals 21 and 23, the coating having an aperture at the centre of each side of the disc. Wave energy is thus absorbed at the latter and the signal is carried across the gap solely by the electron stream. Input and output coaxial lines 29 and 37 are provided, their inner conductors being connected to spirals 31 and 31<SP>1</SP>. The tube is completed by a cathode 1. accelerating electrode 3, and collecting electrode 9. Modified tubes are described in which the electron stream is controlled by a single grid, or by passing it through grids in the wall of a cavity resonator. The latter contains a coupling loop connected to an input coaxial line.
GB15492/51A 1950-06-30 1951-06-29 Improvements relating to high-frequency electro-magnetic wave devices Expired GB689290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US171479A US2712614A (en) 1950-06-30 1950-06-30 Travelling wave tubes

Publications (1)

Publication Number Publication Date
GB689290A true GB689290A (en) 1953-03-25

Family

ID=22623881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15492/51A Expired GB689290A (en) 1950-06-30 1951-06-29 Improvements relating to high-frequency electro-magnetic wave devices

Country Status (3)

Country Link
US (1) US2712614A (en)
FR (1) FR1064671A (en)
GB (1) GB689290A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229044A (en) * 1989-02-23 1990-09-12 Dx Antenna Coaxial line coupling device

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE543286A (en) * 1954-12-03
US2850704A (en) * 1955-02-04 1958-09-02 Hughes Aircraft Co Waveguide coupling
US2890373A (en) * 1955-05-12 1959-06-09 Varian Associates Retarded wave electron discharge device
US2939993A (en) * 1957-01-07 1960-06-07 Gen Electric Traveling-wave tube attenuators
US2862137A (en) * 1957-01-18 1958-11-25 Sperry Rand Corp Travelling wave tube
US2952795A (en) * 1957-06-24 1960-09-13 Gen Electric Electron discharge device
US2955224A (en) * 1958-01-16 1960-10-04 Itt Traveling wave electron discharge device
US3257576A (en) * 1961-12-18 1966-06-21 Litton Electron Tube Corp Attenuation for crossed-field devices
US3417279A (en) * 1964-09-04 1968-12-17 Air Force Usa Planar slow-wave circuit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL61489B (en) * 1931-06-13
US1905353A (en) * 1931-06-18 1933-04-25 American Telephone & Telegraph Attenuation unit
NL62817C (en) * 1940-05-04
NL67302C (en) * 1944-02-25
FR954564A (en) * 1946-10-22 1950-01-03
FR940052A (en) * 1947-01-08 1948-12-02 Csf Electron tube for very high frequencies
US2578434A (en) * 1947-06-25 1951-12-11 Rca Corp High-frequency electron discharge device of the traveling wave type
US2516944A (en) * 1947-12-18 1950-08-01 Philco Corp Impedance-matching device
US2584597A (en) * 1949-01-26 1952-02-05 Sylvania Electric Prod Traveling wave tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229044A (en) * 1989-02-23 1990-09-12 Dx Antenna Coaxial line coupling device
DE4005654A1 (en) * 1989-02-23 1990-09-13 Dx Antenna COUPLING DEVICE FOR RF COAXIAL CABLES
GB2229044B (en) * 1989-02-23 1993-06-16 Dx Antenna High frequency coaxial line coupling device

Also Published As

Publication number Publication date
FR1064671A (en) 1954-05-17
US2712614A (en) 1955-07-05

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