GB680597A - Improvements in or relating to high frequency electron-discharge tube apparatus - Google Patents
Improvements in or relating to high frequency electron-discharge tube apparatusInfo
- Publication number
- GB680597A GB680597A GB28183/50A GB2818350A GB680597A GB 680597 A GB680597 A GB 680597A GB 28183/50 A GB28183/50 A GB 28183/50A GB 2818350 A GB2818350 A GB 2818350A GB 680597 A GB680597 A GB 680597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resonators
- resonant
- different
- cathode
- tube
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
- H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
- H01J25/24—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Particle Accelerators (AREA)
- Microwave Tubes (AREA)
Abstract
680,597. Velocity-modulated tubes. SPERRY CORPORATION. Nov. 17, 1950 [Dec. 30, 1949], No. 28183/50. Class 39(i) An electron-discharger tube apparatus of the reflex-velocity modulation type comprises a plurality of resonant-space resonators of different resonant frequencies and means for varying the circuit, parameters e.g. voltage applied to the reflector electrode so that any one of the resonators may be excited selectively to oscillate at its resonant frequency. As shown the apparatus comprises resonant spaces 38, 39 of different frequencies constituted by metallic laminations 46 to 50 and a separating wall 49 supported by a tube 37 mounted on a shell 23 which forms the enclosure for the cathode button 12 and its heater 13. The electrons emanating from the cathode 12 and under the influence of an accelerating potential provided by battery 69, accelerate toward a "smoother" grid 35 and traverse the tube 57 after which they pass through gaps defined by grids 41 to 44 to be reflected back by the reflector electrode 57, the potential on which may be varied, for example by switch 76, to excite selectively one of the resonators. Energy is extracted from the resonators in the arrangement shown, by a wave-guide 79 the end of which is closed by a window 82 mounted in a frame 81 the configuration of which provides a relatively long heat path and minimises cracking of the window; alternatively energy may be extracted from the resonators by co-axial transmission lines (not shown). To ensure maximum output from the resonator 38 the length of the "drift" space 54 between the pairs of grids 41 to 44 is kept to a minimum. The arrangement is also such that the modes of oscillation of the resonators 38, 39, do not coincide or overlap. The use of laminations 46 to 50 facilitates the ready construction of resonators of different dimensions; if desired tuning mechanisms may also be employed in conjunction with the resonators. Selective operation may also be effected by altering the accelerating voltage as applied to the " smoother " grid 35 and the cathode voltage in addition to or alternatively to the reflector voltages. The apparatus may be used as a switching mechanism in which H.F. signals of different frequencies are generated in responses to pulses of different magnitudes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US135867A US2678404A (en) | 1949-12-30 | 1949-12-30 | High-frequency electron discharge apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB680597A true GB680597A (en) | 1952-10-08 |
Family
ID=22470086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28183/50A Expired GB680597A (en) | 1949-12-30 | 1950-11-17 | Improvements in or relating to high frequency electron-discharge tube apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US2678404A (en) |
FR (1) | FR1029026A (en) |
GB (1) | GB680597A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2817823A (en) * | 1953-12-11 | 1957-12-24 | Ernest C Okress | Circular waveguide output for magnetrons |
US3018453A (en) * | 1953-12-11 | 1962-01-23 | Ernest C Okress | High power waveguide windows |
US2878415A (en) * | 1955-03-31 | 1959-03-17 | Bendix Aviat Corp | Electron discharge device |
US2955228A (en) * | 1958-05-26 | 1960-10-04 | Varian Associates | Electron discharge device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2375223A (en) * | 1939-08-24 | 1945-05-08 | Univ Leland Stanford Junior | Dielectric guide signaling |
US2314794A (en) * | 1940-06-25 | 1943-03-23 | Rca Corp | Microwave device |
US2323729A (en) * | 1940-08-13 | 1943-07-06 | Westinghouse Electric & Mfg Co | Means for tuning short-wave hollow-body resonator apparatus |
BE472810A (en) * | 1941-08-29 | |||
US2466059A (en) * | 1943-09-03 | 1949-04-05 | Raytheon Mfg Co | Laminated magnetron |
US2450023A (en) * | 1943-11-15 | 1948-09-28 | Raytheon Mfg Co | Electron discharge device of the magnetron type |
US2468145A (en) * | 1943-11-25 | 1949-04-26 | Sperry Corp | Cavity resonator apparatus, including frequency control means |
US2485400A (en) * | 1945-04-19 | 1949-10-18 | Gen Electric | High-frequency electron discharge apparatus |
-
1949
- 1949-12-30 US US135867A patent/US2678404A/en not_active Expired - Lifetime
-
1950
- 1950-11-17 GB GB28183/50A patent/GB680597A/en not_active Expired
- 1950-11-30 FR FR1029026D patent/FR1029026A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2678404A (en) | 1954-05-11 |
FR1029026A (en) | 1953-05-29 |
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