GB682515A - Improvements in or relating to arrangements for amplifying centrimetre and decimetre waves, comprising a travelling wave tube - Google Patents

Improvements in or relating to arrangements for amplifying centrimetre and decimetre waves, comprising a travelling wave tube

Info

Publication number
GB682515A
GB682515A GB23027/49A GB2302749A GB682515A GB 682515 A GB682515 A GB 682515A GB 23027/49 A GB23027/49 A GB 23027/49A GB 2302749 A GB2302749 A GB 2302749A GB 682515 A GB682515 A GB 682515A
Authority
GB
United Kingdom
Prior art keywords
travelling wave
centrimetre
decimetre
amplifying
waves
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
GB23027/49A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Philips Electronics NV
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 Philips Gloeilampenfabrieken NV, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB682515A publication Critical patent/GB682515A/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
    • H01J23/30—Damping arrangements associated with slow-wave structures, e.g. for suppression of unwanted oscillations

Abstract

682,515. Travelling wave tubes. PHILIPS ELECTRICAL, Ltd. Sept. 6, 1949 [Sept. 9, 1948], No. 23027/49. Class 39(i) In a travelling wave tube, damping of the helix or helices to match operating conditions is obtained by providing a variable layer of material of poor conductivity on the outer wall of the tube. A layer of colloidal graphite may be deposited and wiped off as required, or a cylinder of glass 12 coated internally over the whole or a part with graphite slides relative to an inner cylinder or sector of copper 13 to secure damping of the helix 7. The latter is surrounded at its ends by wave guides 8, 9.
GB23027/49A 1948-09-09 1949-09-06 Improvements in or relating to arrangements for amplifying centrimetre and decimetre waves, comprising a travelling wave tube Expired GB682515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL275641X 1948-09-09

Publications (1)

Publication Number Publication Date
GB682515A true GB682515A (en) 1952-11-12

Family

ID=19782117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23027/49A Expired GB682515A (en) 1948-09-09 1949-09-06 Improvements in or relating to arrangements for amplifying centrimetre and decimetre waves, comprising a travelling wave tube

Country Status (7)

Country Link
US (1) US2669674A (en)
BE (1) BE491016A (en)
CH (1) CH275641A (en)
DE (1) DE807518C (en)
FR (1) FR994736A (en)
GB (1) GB682515A (en)
NL (2) NL80722C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830220A (en) * 1950-06-29 1958-04-08 Gen Electric Traveling-wave tube
US2830219A (en) * 1950-06-29 1958-04-08 Gen Electric Traveling-wave tube
US2928979A (en) * 1951-09-08 1960-03-15 English Electric Valve Co Ltd Travelling-wave tube
US2750529A (en) * 1952-03-12 1956-06-12 Bell Telephone Labor Inc Electron discharge device
NL187903B (en) * 1953-06-05 Mead Corp DEVICE FOR SPACED SUPPLY OF CUP-SHAPED HOLDERS.
NL92638C (en) * 1953-12-10
NL197957C (en) * 1954-08-05
BE556363A (en) * 1954-09-16
US2843733A (en) * 1955-05-23 1958-07-15 Sylvania Electric Prod Search receiver with traveling wave tube
US2930925A (en) * 1956-04-04 1960-03-29 Hughes Aircraft Co Spurious mode suppressor for backwardwave oscillators
US2890369A (en) * 1956-10-02 1959-06-09 Sylvania Electric Prod Attenuator
US2951999A (en) * 1958-04-21 1960-09-06 Itt Constant impedance attenuator
DE1541040B1 (en) * 1966-05-16 1971-08-26 Siemens Ag WALKING FIELD TUBE WITH TWO HIGH FREQUENCY INPUT AND OUTSIDE WAVE GUIDES FORMING THE TUBE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2197123A (en) * 1937-06-18 1940-04-16 Bell Telephone Labor Inc Guided wave transmission
NL62817C (en) * 1940-05-04
BE472484A (en) * 1945-03-12
BE469122A (en) * 1946-01-11 Western Electric Co
NL73832C (en) * 1946-10-22
US2541843A (en) * 1947-07-18 1951-02-13 Philco Corp Electronic tube of the traveling wave type
US2585582A (en) * 1949-07-07 1952-02-12 Bell Telephone Labor Inc Electron gun

Also Published As

Publication number Publication date
BE491016A (en)
NL80722C (en)
DE807518C (en) 1951-06-28
CH275641A (en) 1951-05-31
US2669674A (en) 1954-02-16
FR994736A (en) 1951-11-21
NL142247B (en)

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