GB1325987A - Travelling wave amplifier tubes - Google Patents

Travelling wave amplifier tubes

Info

Publication number
GB1325987A
GB1325987A GB2428672A GB2428672A GB1325987A GB 1325987 A GB1325987 A GB 1325987A GB 2428672 A GB2428672 A GB 2428672A GB 2428672 A GB2428672 A GB 2428672A GB 1325987 A GB1325987 A GB 1325987A
Authority
GB
United Kingdom
Prior art keywords
slow
dispersive
wave
wave structure
helix
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
GB2428672A
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.)
Litton Industries Inc
Original Assignee
Litton Industries Inc
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 Litton Industries Inc filed Critical Litton Industries Inc
Publication of GB1325987A publication Critical patent/GB1325987A/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
    • H01J23/27—Helix-derived slow-wave structures
    • 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 Tubes (AREA)
  • Microwave Amplifiers (AREA)

Abstract

1325987 Travelling-wave tubes LITTON INDUSTRIES Inc 23 May 1972 [22 July 1971] 24286/72 Heading H1D The bandwidth of an O-type travelling wave amplifier having a helix as slow-wave structure is increased by further incorporating at least one dispersive slow-wave structure section having a peak gain located in a frequency region 63 or 65, Fig. 4, in which the gain of the helix is beginning to decrease. The dispersive slow-wave structure may be of ring-and-loop form, Fig. 2, manufactured by stamping from a single molybdenum sheet with subsequent bending, and may be disposed between two sections of the main heliz (Fig. 1, not shown). Two series-connected structures of Fig. 2 form, dimensioned respectively to extend the bandwidth at its upper and its lower edge, are preferably employed, the adjacent ends of the main and the dispersive structures being connected to the earthed envelope of the tube, and provided, on their support rods, with an attenuating carbon coating.
GB2428672A 1971-07-22 1972-05-23 Travelling wave amplifier tubes Expired GB1325987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16526371A 1971-07-22 1971-07-22

Publications (1)

Publication Number Publication Date
GB1325987A true GB1325987A (en) 1973-08-08

Family

ID=22598156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2428672A Expired GB1325987A (en) 1971-07-22 1972-05-23 Travelling wave amplifier tubes

Country Status (4)

Country Link
US (1) US3716745A (en)
JP (1) JPS5713094B1 (en)
DE (1) DE2229760C3 (en)
GB (1) GB1325987A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147956A (en) * 1976-03-16 1979-04-03 Nippon Electric Co., Ltd. Wide-band coupled-cavity type traveling-wave tube
FR2365218A1 (en) * 1976-09-21 1978-04-14 Thomson Csf HYPERFREQUENCY DELAY LINE AND WAVE PROPAGATION TUBE CONTAINING SUCH A LINE
US4118671A (en) * 1977-02-15 1978-10-03 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Traveling wave tube circuit
FR2445014A1 (en) * 1978-12-22 1980-07-18 Thomson Csf MICROWAVE DELAY LINE AND PROGRESSIVE WAVE TUBE HAVING SUCH A LINE
FR2457560A1 (en) * 1979-05-23 1980-12-19 Thomson Csf MICROWAVE DELAY LINE COMPRISING A VARIABLE SECTION CONDUCTOR AND PROGRESSIVE WAVE TUBE COMPRISING SUCH A LINE
FR2518802A1 (en) * 1981-12-22 1983-06-24 Thomson Csf DELAY LINE FOR PROGRESSIVE WAVE TUBE
US5162697A (en) * 1990-08-06 1992-11-10 Hughes Aircraft Company Traveling wave tube with gain flattening slow wave structure
US6049249A (en) * 1997-09-08 2000-04-11 Hughes Electronics Corporation TWT with mismatched section for controlled gain variation with frequency
US6285254B1 (en) * 2000-01-14 2001-09-04 Teledyne Technologies Incorporated System and method for linearizing vacuum electronic amplification
US6498532B2 (en) 2001-01-12 2002-12-24 Teledyne Technologies Incorporated System and method for linearizing vacuum electronic amplification
US6747412B2 (en) * 2001-05-11 2004-06-08 Bernard K. Vancil Traveling wave tube and method of manufacture
US6734734B2 (en) 2002-07-24 2004-05-11 Teledyne Technologies Incorporated Amplifier phase droop and phase noise systems and methods
US7656236B2 (en) * 2007-05-15 2010-02-02 Teledyne Wireless, Llc Noise canceling technique for frequency synthesizer
US8179045B2 (en) * 2008-04-22 2012-05-15 Teledyne Wireless, Llc Slow wave structure having offset projections comprised of a metal-dielectric composite stack
US9202660B2 (en) 2013-03-13 2015-12-01 Teledyne Wireless, Llc Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes
CN103258703B (en) * 2013-05-03 2015-10-21 电子科技大学 A kind of microstrip line slow-wave structure
CN114256040B (en) * 2021-12-23 2023-03-14 电子科技大学 Novel traveling wave tube slow wave structure
CN114530358B (en) * 2022-02-22 2023-04-18 电子科技大学 Coaxial single-electron-beam multi-channel helix traveling wave tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123735A (en) * 1964-03-03 Broadband crossed-field amplifier with slow wave structure
US2828440A (en) * 1950-06-22 1958-03-25 Rca Corp Traveling wave electron tube
US2814756A (en) * 1955-01-14 1957-11-26 Int Standard Electric Corp Micro-wave discharge tube
US3092750A (en) * 1959-10-22 1963-06-04 Raytheon Co Traveling wave tube
US3274429A (en) * 1963-03-18 1966-09-20 Varian Associates High frequency electron discharge device with heat dissipation means
US3324342A (en) * 1963-07-12 1967-06-06 Varian Associates Traveling wave tube having maximum gain and power output at the same beam voltage
US3349278A (en) * 1963-10-04 1967-10-24 Raytheon Co Forward wave tube wherein the interaction path comprises a single wire helix and an adjacent contrawound helix
US3385994A (en) * 1963-10-29 1968-05-28 Litton Prec Products Inc Forward wave amplifier having dispersive slow wave structure and means to vary the electron beam velocity

Also Published As

Publication number Publication date
DE2229760A1 (en) 1973-01-18
US3716745A (en) 1973-02-13
JPS5713094B1 (en) 1982-03-15
DE2229760C3 (en) 1975-11-13
DE2229760B2 (en) 1975-03-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee