GB587619A - Improvements in or relating to electron discharge devices of the electron velocity modulation type - Google Patents
Improvements in or relating to electron discharge devices of the electron velocity modulation typeInfo
- Publication number
- GB587619A GB587619A GB1229/44A GB122944A GB587619A GB 587619 A GB587619 A GB 587619A GB 1229/44 A GB1229/44 A GB 1229/44A GB 122944 A GB122944 A GB 122944A GB 587619 A GB587619 A GB 587619A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resonator
- diameter
- electron
- open
- fins
- 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
-
- 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
- H01J25/06—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron
- H01J25/08—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron with electron stream perpendicular to the axis of the resonator
Landscapes
- Microwave Tubes (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Particle Accelerators (AREA)
Abstract
587,619. Velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd., and TOMLIN, S. G. Jan. 21, 1944, No. 1229. [Class 39 (i)] In an electron discharge device of the type described in Specification 537,490, in which an electron beam is projected across a coaxial line resonator, the resonator parts are so dimensioned and in particular the gap-length G, Fig. 1, between the fins 2, 3 and the fins 4 attached to the central conductor 5 is so chosen that the proportional frequency change produced by a given variation in the mean accelerating voltage is a maximum. The device may thus be tuned by varying the accelerating voltage. The necessary relations between the various resonator parts are discussed mathematically. Magnetic focusing is used. The resonator 1 is preferably secured to an annular metal disc 6 sealed through the glass envelope 7 to assist in the dissipation of heat, as described in Specification 587,664. The resonator may be open at the upper end as shown, in which case the generated waves are radiated directly therefrom. The diameter of the open end is preferably less than the cut-off diameter at the operating frequency. Alternatively, the upper end of the resonator may be closed, and energy extracted by means of a wire loop and probe from the closed end, Fig. 3 (not shown). The lower end of the resonator may be left open in this case if the diameter of the resonator is below the cut-off diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES0177230A ES177230A1 (en) | 1944-01-21 | 1947-03-13 | IMPROVEMENTS IN OR RELATED TO ELECTRONIC DISCHARGE DEVICES OF THE TYPE OF ELECTRON SPEED MODULATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB276257X | 1944-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB587619A true GB587619A (en) | 1947-05-01 |
Family
ID=10262647
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1229/44A Expired GB587619A (en) | 1944-01-21 | 1944-01-21 | Improvements in or relating to electron discharge devices of the electron velocity modulation type |
| GB9652/46A Expired GB587664A (en) | 1944-01-21 | 1944-01-21 | Improvements in or relating to electron discharge devices of the electron velocity modulation type |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9652/46A Expired GB587664A (en) | 1944-01-21 | 1944-01-21 | Improvements in or relating to electron discharge devices of the electron velocity modulation type |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2521763A (en) |
| BE (1) | BE480141A (en) |
| CH (1) | CH276257A (en) |
| FR (1) | FR948542A (en) |
| GB (2) | GB587619A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2666185A (en) * | 1946-02-18 | 1954-01-12 | George E Hulstede | Tuning plunger for a coaxial line type ultrahigh-frequency circuit |
| US2777969A (en) * | 1952-04-10 | 1957-01-15 | Ericsson Telefon Ab L M | Electron discharge device for microwaves |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB537490A (en) * | 1939-12-22 | 1941-06-24 | Standard Telephones Cables Ltd | Improvements in or relating to electron discharge apparatus |
| GB537518A (en) * | 1939-12-22 | 1941-06-25 | Standard Telephones Cables Ltd | Improvements in or relating to electron discharge apparatus of the velocity modulated type |
| US2411538A (en) * | 1940-06-21 | 1946-11-26 | Int Standard Electric Corp | Electron discharge apparatus |
| US2338306A (en) * | 1940-07-05 | 1944-01-04 | Int Standard Electric Corp | Electron discharge device |
| BE472659A (en) * | 1940-08-02 | |||
| US2353742A (en) * | 1941-08-26 | 1944-07-18 | Gen Electric | High-frequency apparatus |
| US2408355A (en) * | 1942-01-29 | 1946-09-24 | Rca Corp | Concentric line oscillator |
| US2410840A (en) * | 1942-05-06 | 1946-11-12 | Bell Telephone Labor Inc | Electron beam modulator |
| GB586150A (en) * | 1942-07-17 | 1947-03-10 | Standard Telephones Cables Ltd | Improvements in or relating to electron discharge apparatus |
-
0
- BE BE480141D patent/BE480141A/xx unknown
-
1944
- 1944-01-21 GB GB1229/44A patent/GB587619A/en not_active Expired
- 1944-01-21 GB GB9652/46A patent/GB587664A/en not_active Expired
-
1945
- 1945-12-19 US US636018A patent/US2521763A/en not_active Expired - Lifetime
-
1947
- 1947-06-26 FR FR948542D patent/FR948542A/en not_active Expired
- 1947-10-18 CH CH276257D patent/CH276257A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH276257A (en) | 1951-06-30 |
| BE480141A (en) | |
| GB587664A (en) | 1947-05-01 |
| US2521763A (en) | 1950-09-12 |
| FR948542A (en) | 1949-08-03 |
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