GB678723A - Improvements in travelling wave tubes - Google Patents

Improvements in travelling wave tubes

Info

Publication number
GB678723A
GB678723A GB24749/49A GB2474949A GB678723A GB 678723 A GB678723 A GB 678723A GB 24749/49 A GB24749/49 A GB 24749/49A GB 2474949 A GB2474949 A GB 2474949A GB 678723 A GB678723 A GB 678723A
Authority
GB
United Kingdom
Prior art keywords
helix
wave
tube
travelling wave
coupled
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
GB24749/49A
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 GB678723A publication Critical patent/GB678723A/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

Landscapes

  • Microwave Amplifiers (AREA)
  • Microwave Tubes (AREA)
  • Lasers (AREA)

Abstract

678,723. Travelling wave tubes. PHILIPS ELECTRICAL, Ltd. Sept. 27, 1949 [Sept. 30, 1948], No. 24749/49. Class 39 (i). The helix of a travelling wave tube is in two parts which are not coupled by the electron beam and the length of the first part is at least twice as long as the second part, the latter being 15 wavelengths at the most and the greater 30 wavelengths at least. The tube 1 encloses two sets of annular electrodes 5, 7 between which extend the two helices 6, 8 of lengths 35 cms. and 15 cms. respectively. U-shaped wave-guide 11 couples the ends of helix 6 and the beginning of helix 8, the wall of the tube at 16 being covered with a layer of graphite to prevent the electron beam from coupling the two helices. Input and output wave-guides 9, 10 are coupled to the extreme ends of the helix. In a modification, Fig. 2 (not shown), the two parts of the helix are in separate parallel tubes, and coupled together by a laterally extending wave-guide.
GB24749/49A 1948-09-30 1949-09-27 Improvements in travelling wave tubes Expired GB678723A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL678723X 1948-09-30

Publications (1)

Publication Number Publication Date
GB678723A true GB678723A (en) 1952-09-10

Family

ID=19802367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24749/49A Expired GB678723A (en) 1948-09-30 1949-09-27 Improvements in travelling wave tubes

Country Status (4)

Country Link
US (1) US2733305A (en)
DE (1) DE807963C (en)
FR (1) FR996350A (en)
GB (1) GB678723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972492C (en) * 1953-12-22 1959-07-30 Siemens Ag Arrangement for adapting the input and / or output of an electron tube for very short waves to a hollow pipe

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849642A (en) * 1953-06-17 1958-08-26 Bell Telephone Labor Inc Traveling wave amplifier
US2849545A (en) * 1953-07-29 1958-08-26 John T Mendel Wide band traveling wave amplifier
US2808470A (en) * 1954-05-18 1957-10-01 Rca Corp Electron discharge device structures and circuitry therefor
US3050657A (en) * 1955-01-12 1962-08-21 Gen Electric Slow wave structures
US2985793A (en) * 1955-04-06 1961-05-23 Hughes Aircraft Co Traveling-wave tube
US2888649A (en) * 1956-01-31 1959-05-26 Raytheon Mfg Co Traveling wave tube system
DE1068311B (en) * 1956-03-30 1959-11-05
US3039089A (en) * 1958-01-27 1962-06-12 Temco Electronics & Missiles C Radar system
US3084293A (en) * 1959-04-01 1963-04-02 Hughes Aircraft Co Microwave amplifier
US3119045A (en) * 1961-01-03 1964-01-21 Rca Corp Electron beam tube with longitudinally partitioned drift tube
US3293482A (en) * 1962-06-21 1966-12-20 Rca Corp Plural output traveling wave tube
US3366885A (en) * 1963-12-04 1968-01-30 Microwave Ass Switching system comprising low gain, electron beam coupled helices

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE437641A (en) * 1937-07-14
BE481452A (en) * 1939-06-15
NL62817C (en) * 1940-05-04
FR957330A (en) * 1940-05-17 1950-02-18
NL76331C (en) * 1946-01-11 Western Electric Co
FR57746E (en) * 1947-01-09 1953-05-05
US2578434A (en) * 1947-06-25 1951-12-11 Rca Corp High-frequency electron discharge device of the traveling wave type
US2672572A (en) * 1947-07-18 1954-03-16 Philco Corp Traveling wave tube
US2541843A (en) * 1947-07-18 1951-02-13 Philco Corp Electronic tube of the traveling wave type
US2516944A (en) * 1947-12-18 1950-08-01 Philco Corp Impedance-matching device
FR959298A (en) * 1947-12-31 1950-03-28
US2584597A (en) * 1949-01-26 1952-02-05 Sylvania Electric Prod Traveling wave tube
US2531972A (en) * 1949-02-12 1950-11-28 Csf Ultra short wave transmitting tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972492C (en) * 1953-12-22 1959-07-30 Siemens Ag Arrangement for adapting the input and / or output of an electron tube for very short waves to a hollow pipe

Also Published As

Publication number Publication date
US2733305A (en) 1956-01-31
DE807963C (en) 1951-07-09
FR996350A (en) 1951-12-18

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