GB646546A - Improvements in or relating to electric discharge devices - Google Patents

Improvements in or relating to electric discharge devices

Info

Publication number
GB646546A
GB646546A GB1432748A GB1432748A GB646546A GB 646546 A GB646546 A GB 646546A GB 1432748 A GB1432748 A GB 1432748A GB 1432748 A GB1432748 A GB 1432748A GB 646546 A GB646546 A GB 646546A
Authority
GB
United Kingdom
Prior art keywords
helices
tube
wave
cylinders
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
GB1432748A
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.)
BRIAN LESLIE HUMPHREYS
MO Valve Co Ltd
Original Assignee
BRIAN LESLIE HUMPHREYS
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 BRIAN LESLIE HUMPHREYS, MO Valve Co Ltd filed Critical BRIAN LESLIE HUMPHREYS
Publication of GB646546A publication Critical patent/GB646546A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01J23/27—Helix-derived slow-wave structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P9/00—Delay lines of the waveguide type
    • H01P9/02—Helical lines

Abstract

646,546. Travelling-wave tubes. M-O VALVE CO., Ltd., HUMPHREYS, B. L., and KITE, L. V. May 27, 1948, No. 14327. [Class 39 (i)] A travelling wave tube 1 contains at least two substantially coaxial helical conductors along the path of the electron beam. The phase velocity frequency characteristic can be adjusted by choosing dimensions for the helices to a degree that would only be obtainable with the usual single helix if the latter were appreciably smaller than either of the multiple helices. The tube is provided with an electron gun 2 and a collecting electrode 3. The helices 4 and 5 are mounted between cylinders 9 and 11 which form wavetraps with cylinders 16 formed on input and output waveguides 13 and 17. The ends 10 and 12 of the helices couple the tube to the wave-guides. In limiting cases one of the helices may be a number of straight rods or a number of parallel rings. Specification 646,545, [Group XL (b)], is referred to.
GB1432748A 1948-05-27 1948-05-27 Improvements in or relating to electric discharge devices Expired GB646546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1432648A GB646545A (en) 1948-05-27 1948-05-27 Improvements in or relating to electromagnetic waveguides

Publications (1)

Publication Number Publication Date
GB646546A true GB646546A (en) 1950-11-22

Family

ID=10039174

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1432648A Expired GB646545A (en) 1948-05-27 1948-05-27 Improvements in or relating to electromagnetic waveguides
GB1432748A Expired GB646546A (en) 1948-05-27 1948-05-27 Improvements in or relating to electric discharge devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1432648A Expired GB646545A (en) 1948-05-27 1948-05-27 Improvements in or relating to electromagnetic waveguides

Country Status (3)

Country Link
FR (1) FR987303A (en)
GB (2) GB646545A (en)
NL (2) NL81970C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052479B (en) * 1953-10-12 1959-03-12 Varian Associates Running field pipes
DE1060994B (en) * 1953-08-14 1959-07-09 M O Valve Co Ltd Electron tubes for amplifying very short electrical waves in the manner of a traveling wave tube with a helical delay line
DE1063654B (en) * 1953-01-07 1959-08-20 Gen Electric Arrangement for delayed transmission of electromagnetic waves, especially in field pipes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2824257A (en) * 1953-03-03 1958-02-18 Gen Electric Traveling wave tube
US2843791A (en) * 1953-03-30 1958-07-15 Bell Telephone Labor Inc Traveling wave tube
US2905858A (en) * 1953-06-30 1959-09-22 Bell Telephone Labor Inc Impedance matching by means of coupled helices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063654B (en) * 1953-01-07 1959-08-20 Gen Electric Arrangement for delayed transmission of electromagnetic waves, especially in field pipes
DE1060994B (en) * 1953-08-14 1959-07-09 M O Valve Co Ltd Electron tubes for amplifying very short electrical waves in the manner of a traveling wave tube with a helical delay line
DE1052479B (en) * 1953-10-12 1959-03-12 Varian Associates Running field pipes

Also Published As

Publication number Publication date
NL146666B (en)
NL81970C (en) 1956-07-16
FR987303A (en) 1951-08-13
GB646545A (en) 1950-11-22

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