FR1132913A - Periodic focusing in traveling wave tubes - Google Patents

Periodic focusing in traveling wave tubes

Info

Publication number
FR1132913A
FR1132913A FR1132913DA FR1132913A FR 1132913 A FR1132913 A FR 1132913A FR 1132913D A FR1132913D A FR 1132913DA FR 1132913 A FR1132913 A FR 1132913A
Authority
FR
France
Prior art keywords
traveling wave
wave tubes
periodic focusing
focusing
periodic
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
Other languages
French (fr)
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR1132913A publication Critical patent/FR1132913A/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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing
FR1132913D 1954-10-22 1955-06-07 Periodic focusing in traveling wave tubes Expired FR1132913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US464052A US2812470A (en) 1954-10-22 1954-10-22 Periodic focusing in traveling wave tubes

Publications (1)

Publication Number Publication Date
FR1132913A true FR1132913A (en) 1957-03-19

Family

ID=23842348

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1132913D Expired FR1132913A (en) 1954-10-22 1955-06-07 Periodic focusing in traveling wave tubes

Country Status (4)

Country Link
US (1) US2812470A (en)
DE (1) DE1021959B (en)
FR (1) FR1132913A (en)
GB (1) GB790017A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485801A1 (en) * 1980-06-27 1981-12-31 Thomson Csf Coupler for static focussed travelling wave tube - has rib connected to slow wave helix and guide of similar dimension to focussing magnet

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL200862A (en) * 1954-10-04
US2919374A (en) * 1955-07-05 1959-12-29 Sylvania Electric Prod Improved traveling wave tube amplifier
US2964669A (en) * 1955-08-25 1960-12-13 Rca Corp Traveling wave tube
NL214979A (en) * 1956-03-01
US2945154A (en) * 1957-01-18 1960-07-12 Sperry Rand Corp Travelling wave tube
US2939994A (en) * 1957-01-28 1960-06-07 Westinghouse Electric Corp Electron discharge device
US3007076A (en) * 1957-05-03 1961-10-31 Itt Traveling wave electron discharge device
US2966609A (en) * 1957-11-22 1960-12-27 Gen Electric Magnetic structures for high frequency energy interchange apparatus
NL104829C (en) * 1958-02-25
US3027484A (en) * 1958-03-29 1962-03-27 Kobe Kogyo Kabushiki Kaisha Periodic magnetic focussing system for travelling wave tubes
NL98136C (en) * 1958-06-27
US2970240A (en) * 1958-10-01 1961-01-31 Hughes Aircraft Co Liquid-cooled traveling wave tube
US2979636A (en) * 1959-01-05 1961-04-11 Magid Max Wave guide-to-coaxial line coupling for traveling wave amplifiers
US3001094A (en) * 1959-01-14 1961-09-19 Nippon Electric Co Magnetic focusing device
NL250375A (en) * 1959-04-13
US3289031A (en) * 1963-01-28 1966-11-29 Varian Associates High frequency electron discharge devices and slow wave structures therefor
US3787747A (en) * 1972-08-07 1974-01-22 Varian Associates Periodic magnetically focused beam tube
FR2453497A1 (en) * 1979-04-03 1980-10-31 Thomson Csf PERMANENT MAGNET FOCUSING DEVICE FOR ELECTRONIC TUBE, AND ELECTRONIC TUBE PROVIDED WITH SUCH A DEVICE
DE3014404C2 (en) * 1979-04-11 1985-04-18 Nippon Electric Co., Ltd., Tokio/Tokyo Lauffeldtube
USH450H (en) 1987-02-27 1988-03-01 The United States Of America As Represented By The United States Department Of Energy Magnetic field adjustment structure and method for a tapered wiggler
US4942336A (en) * 1988-04-18 1990-07-17 Kurt Amboss Traveling-wave tube with confined-flow periodic permanent magnet focusing
CN113270304A (en) * 2021-06-04 2021-08-17 深圳奥镨科技有限公司 Multi-electron traveling wave tube with axisymmetric folded waveguide high-frequency slow-wave structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485801A1 (en) * 1980-06-27 1981-12-31 Thomson Csf Coupler for static focussed travelling wave tube - has rib connected to slow wave helix and guide of similar dimension to focussing magnet

Also Published As

Publication number Publication date
DE1021959B (en) 1958-01-02
US2812470A (en) 1957-11-05
GB790017A (en) 1958-01-29

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