GB1403172A - Miniaturized microwave beam tube - Google Patents
Miniaturized microwave beam tubeInfo
- Publication number
- GB1403172A GB1403172A GB1307273A GB1307273A GB1403172A GB 1403172 A GB1403172 A GB 1403172A GB 1307273 A GB1307273 A GB 1307273A GB 1307273 A GB1307273 A GB 1307273A GB 1403172 A GB1403172 A GB 1403172A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- travelling
- march
- excess
- rare earth
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 2
- 150000002910 rare earth metals Chemical class 0.000 abstract 2
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 229910052691 Erbium Inorganic materials 0.000 abstract 1
- 229910052693 Europium Inorganic materials 0.000 abstract 1
- 229910052688 Gadolinium Inorganic materials 0.000 abstract 1
- 229910052689 Holmium Inorganic materials 0.000 abstract 1
- 229910052765 Lutetium Inorganic materials 0.000 abstract 1
- 229910052779 Neodymium Inorganic materials 0.000 abstract 1
- 229910052777 Praseodymium Inorganic materials 0.000 abstract 1
- 229910052772 Samarium Inorganic materials 0.000 abstract 1
- 229910052775 Thulium Inorganic materials 0.000 abstract 1
- 229910052769 Ytterbium Inorganic materials 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052746 lanthanum Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 229910052706 scandium Inorganic materials 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 abstract 1
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
Landscapes
- Microwave Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US236299A US3886194A (en) | 1969-05-21 | 1972-03-20 | N-phenoxyalkyl-L-thiocyanoalkanamides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1403172A true GB1403172A (en) | 1975-08-28 |
Family
ID=22888948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1307273A Expired GB1403172A (en) | 1972-03-20 | 1973-03-19 | Miniaturized microwave beam tube |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3755706A (enrdf_load_stackoverflow) |
| JP (1) | JPS577461B2 (enrdf_load_stackoverflow) |
| FR (1) | FR2176932B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1403172A (enrdf_load_stackoverflow) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1451956A (en) * | 1973-02-16 | 1976-10-06 | English Electric Valve Co Ltd | Travelling wave tubes |
| US3855498A (en) * | 1973-11-01 | 1974-12-17 | Us Navy | Center-pole magnetic circuit |
| US3881127A (en) * | 1973-11-01 | 1975-04-29 | Us Navy | Bucking samarium cobalt magnets for crossed field devices |
| US3958147A (en) * | 1975-06-06 | 1976-05-18 | Hughes Aircraft Company | Traveling-wave tube with improved periodic permanent magnet focusing arrangement integrated with coupled cavity slow-wave structure |
| US4114532A (en) * | 1976-10-12 | 1978-09-19 | Dataproducts Corporation | Impact printer magnet assembly |
| JPS5631812Y2 (enrdf_load_stackoverflow) * | 1976-10-25 | 1981-07-29 | ||
| US4228416A (en) * | 1978-09-15 | 1980-10-14 | Hov-Air-Ship, Inc. | Composite magnet and magnetic anchoring |
| JPS57127674A (en) * | 1981-01-29 | 1982-08-07 | Disco Abrasive Sys Ltd | Internal peripheral blade edge manufacturing method |
| JPS57138577A (en) * | 1981-02-17 | 1982-08-26 | Goei Seisakusho:Kk | Electroformed cutter and manufacture thereof |
| DE3216250C2 (de) * | 1982-04-30 | 1985-04-25 | Siemens AG, 1000 Berlin und 8000 München | Wanderfeldröhre mit periodisch-permanentmagnetischem Fokussiersystem |
| JPS59192461A (ja) * | 1983-04-13 | 1984-10-31 | Disco Abrasive Sys Ltd | 穿孔砥石製造方法 |
| FR2545645B1 (fr) * | 1983-05-03 | 1985-12-13 | Thomson Csf | Procede de fabrication d'un troncon de fourreau dit a pieces polaires incorporees pour tubes hyperfrequences |
| US5332948A (en) * | 1992-05-13 | 1994-07-26 | Litton Systems, Inc. | X-z geometry periodic permanent magnet focusing system |
| US5332947A (en) * | 1992-05-13 | 1994-07-26 | Litton Systems, Inc. | Integral polepiece RF amplification tube for millimeter wave frequencies |
| US5744910A (en) * | 1993-04-02 | 1998-04-28 | Litton Systems, Inc. | Periodic permanent magnet focusing system for electron beam |
| US5932971A (en) * | 1997-06-05 | 1999-08-03 | Hughes Electronics Corp | Optimally designed traveling wave tube for operation backed off from saturation |
| NL1026006C2 (nl) | 2004-04-22 | 2005-10-25 | Fei Co | Deeltjes-optisch apparaat voorzien van lenzen met permanent magnetisch materiaal. |
| CN101461026B (zh) * | 2006-06-07 | 2012-01-18 | Fei公司 | 与包含真空室的装置一起使用的滑动轴承 |
| WO2009123593A1 (en) * | 2008-04-03 | 2009-10-08 | Patrick Ferguson | Hollow beam electron gun for use in a klystron |
| US8662187B2 (en) * | 2009-08-13 | 2014-03-04 | Baker Hughes Incorporated | Permanent magnet linear motor actuated safety valve and method |
| US10357714B2 (en) | 2009-10-27 | 2019-07-23 | Harmonix Music Systems, Inc. | Gesture-based user interface for navigating a menu |
| JP5835822B1 (ja) * | 2014-06-30 | 2015-12-24 | Ｎｅｃネットワーク・センサ株式会社 | 高周波回路システム |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB785110A (en) * | 1955-06-28 | 1957-10-23 | Standard Telephones Cables Ltd | Electron tube magnetic focusing device |
| US3215906A (en) * | 1963-09-24 | 1965-11-02 | D M Steward Mfg Company | Periodic permanent magnet focusing stack |
| US3398315A (en) * | 1965-08-19 | 1968-08-20 | Westinghouse Electric Corp | A traveling wavetube with improved thermal and magnetic circuitry |
| FR1522411A (fr) * | 1967-03-14 | 1968-04-26 | Csf | Compensation des effets de la température dans les focalisateurs magnétiques |
-
1972
- 1972-03-20 US US00236299A patent/US3755706A/en not_active Expired - Lifetime
-
1973
- 1973-03-19 GB GB1307273A patent/GB1403172A/en not_active Expired
- 1973-03-20 JP JP3258873A patent/JPS577461B2/ja not_active Expired
- 1973-03-20 FR FR7309908A patent/FR2176932B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2176932A1 (enrdf_load_stackoverflow) | 1973-11-02 |
| FR2176932B1 (enrdf_load_stackoverflow) | 1977-08-05 |
| JPS577461B2 (enrdf_load_stackoverflow) | 1982-02-10 |
| US3755706A (en) | 1973-08-28 |
| JPS496874A (enrdf_load_stackoverflow) | 1974-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19930318 |