IT992766B - Tubo a fascio elettronico periodico messo a fuoco magneticamente - Google Patents
Tubo a fascio elettronico periodico messo a fuoco magneticamenteInfo
- Publication number
- IT992766B IT992766B IT27320/73A IT2732073A IT992766B IT 992766 B IT992766 B IT 992766B IT 27320/73 A IT27320/73 A IT 27320/73A IT 2732073 A IT2732073 A IT 2732073A IT 992766 B IT992766 B IT 992766B
- Authority
- IT
- Italy
- Prior art keywords
- beam tube
- electronic beam
- periodic electronic
- magnetically focused
- focused periodic
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
- H01J21/18—Tubes with a single discharge path having magnetic control means; having both magnetic and electrostatic control means
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27840872A | 1972-08-07 | 1972-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT992766B true IT992766B (it) | 1975-09-30 |
Family
ID=23064862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT27320/73A IT992766B (it) | 1972-08-07 | 1973-07-31 | Tubo a fascio elettronico periodico messo a fuoco magneticamente |
Country Status (7)
Country | Link |
---|---|
US (1) | US3787747A (it) |
JP (1) | JPS49124962A (it) |
DE (1) | DE2338061A1 (it) |
FR (1) | FR2195838B1 (it) |
GB (1) | GB1406938A (it) |
IL (1) | IL42696A (it) |
IT (1) | IT992766B (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3909651A (en) * | 1974-08-15 | 1975-09-30 | Us Army | Low-cost periodic permanent magnet and electrostatic focusing scheme for electron tubes |
US3982152A (en) * | 1974-11-25 | 1976-09-21 | Raytheon Company | Cascade crossed field device |
US3971965A (en) * | 1975-03-31 | 1976-07-27 | The United States Of America As Represented By The Secretary Of The Army | Internally-focused traveling wave tube |
US4107573A (en) * | 1977-02-02 | 1978-08-15 | The United States Of America As Represented By The Secretary Of The Army | Printed circuit traveling wave tube |
US4232249A (en) * | 1978-09-28 | 1980-11-04 | Bell Telephone Laboratories, Incorporated | Beam-switched traveling wave tube |
US4392078A (en) * | 1980-12-10 | 1983-07-05 | General Electric Company | Electron discharge device with a spatially periodic focused beam |
US5227691A (en) * | 1989-05-24 | 1993-07-13 | Matsushita Electric Industrial Co., Ltd. | Flat tube display apparatus |
AU6086994A (en) * | 1993-01-11 | 1994-08-15 | Real Time Electronics Corporation | High frequency scan converter |
US6700454B2 (en) | 2001-06-29 | 2004-03-02 | Zvi Yaniv | Integrated RF array using carbon nanotube cathodes |
US7037370B2 (en) * | 2003-02-06 | 2006-05-02 | Mearini Gerald T | Free-standing diamond structures and methods |
FR2856189B1 (fr) * | 2003-06-10 | 2007-02-16 | Hutchinson | Procede de fabrication d'un dispositif de codage magnetique, ainsi que le dispositif ainsi obtenu |
WO2005017939A2 (en) * | 2003-06-30 | 2005-02-24 | Massachusetts Institute Of Technology | Ribbon-beam travelling wave amplifier with a single-sided slow-wave structure |
US7193485B2 (en) | 2003-08-12 | 2007-03-20 | James A. Dayton, Jr. | Method and apparatus for bi-planar backward wave oscillator |
US7679462B2 (en) | 2006-07-13 | 2010-03-16 | Manhattan Technologies, Llc | Apparatus and method for producing electromagnetic oscillations |
WO2010065170A1 (en) * | 2008-08-20 | 2010-06-10 | Manhattan Technologies Ltd. | Multibeam doubly convergent electron gun |
US8723137B1 (en) * | 2012-10-17 | 2014-05-13 | Innosys, Inc | Hybrid magnet for vacuum electronic device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2812470A (en) * | 1954-10-22 | 1957-11-05 | Bell Telephone Labor Inc | Periodic focusing in traveling wave tubes |
US2911555A (en) * | 1957-09-04 | 1959-11-03 | Hughes Aircraft Co | Traveling-wave tube |
US3102211A (en) * | 1959-08-19 | 1963-08-27 | Varian Associates | Adiabatic beam condenser method and apparatus |
US3231780A (en) * | 1960-10-14 | 1966-01-25 | Sfd Lab Inc | Meandering slow wave circuit having high impedance stub support means |
US3504222A (en) * | 1966-10-07 | 1970-03-31 | Hitachi Ltd | Slow-wave circuit including meander line and shielding therefor |
US3610999A (en) * | 1970-02-05 | 1971-10-05 | Varian Associates | Slow wave circuit and method of fabricating same |
US3670196A (en) * | 1971-02-24 | 1972-06-13 | Raytheon Co | Helix delay line for traveling wave devices |
US3705327A (en) * | 1971-06-02 | 1972-12-05 | Allan W Scott | Microwave generator with interleaved focusing and interaction structures |
-
1972
- 1972-08-07 US US00278408A patent/US3787747A/en not_active Expired - Lifetime
-
1973
- 1973-07-09 IL IL42696A patent/IL42696A/en unknown
- 1973-07-26 DE DE19732338061 patent/DE2338061A1/de active Pending
- 1973-07-31 IT IT27320/73A patent/IT992766B/it active
- 1973-08-03 GB GB3700473A patent/GB1406938A/en not_active Expired
- 1973-08-03 FR FR7328509A patent/FR2195838B1/fr not_active Expired
- 1973-08-07 JP JP48088748A patent/JPS49124962A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2195838B1 (it) | 1977-02-25 |
IL42696A (en) | 1976-02-29 |
IL42696A0 (en) | 1973-10-25 |
FR2195838A1 (it) | 1974-03-08 |
US3787747A (en) | 1974-01-22 |
DE2338061A1 (de) | 1974-02-21 |
JPS49124962A (it) | 1974-11-29 |
GB1406938A (en) | 1975-09-17 |
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