GB640697A - Improvements in or relating to velocity-modulated electron discharge devices - Google Patents
Improvements in or relating to velocity-modulated electron discharge devicesInfo
- Publication number
- GB640697A GB640697A GB34493/45A GB3449345A GB640697A GB 640697 A GB640697 A GB 640697A GB 34493/45 A GB34493/45 A GB 34493/45A GB 3449345 A GB3449345 A GB 3449345A GB 640697 A GB640697 A GB 640697A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control electrode
- electrode system
- velocity
- modulated
- cathode
- 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
- H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
-
- 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
- H01J25/32—Tubes with plural reflection, e.g. Coeterier tube
Landscapes
- Particle Accelerators (AREA)
Abstract
640,697. Velocity-modulated tubes. PHILIPS LAMPS, Ltd. Dec. 20, 1945, No. 34493. Convention date, Dec. 2, 1940. [Class 39 (i)] A tube of the type in which the electron beam from cathode 3 and anode 4 passes a first time through a control electrode system 6, 7, 8 in which it is velocity-modulated, is reflected by a brake-field electrode 10 becoming bunched, and passes a second time through the control electrode system to deliver energy to it, is provided with a second brake field electrode 5 between the cathode and control electrode system so that the electrons are passed back into the control electrode system a third, fourth, &c. time so as to deliver more energy to it. The control electrode system. comprises a half-wave control cylinder between two apertured boundary plates 6, 8. In a modification, Fig. 2, (not shown), there are two -cylinders connected in antiphase. A magnetic focusing field may be employed to increase the number of passages of the electrons before they are collected. The beam may be modulated by a grid in front of the cathode. The tuned output circuit 9 may be a Lecher line or an outer conductor surrounding the cylinders and joining their far ends. Specification 640,747 is referred to. The subjectmatter is identical with Figs. 1 and 2 of Specification 558,143. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Figs. 3 and 4 of Specification 558,143. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL241117X | 1940-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB640697A true GB640697A (en) | 1950-07-26 |
Family
ID=19780550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34493/45A Expired GB640697A (en) | 1940-12-02 | 1945-12-20 | Improvements in or relating to velocity-modulated electron discharge devices |
Country Status (4)
| Country | Link |
|---|---|
| BE (3) | BE443584A (en) |
| CH (2) | CH241117A (en) |
| GB (1) | GB640697A (en) |
| NL (1) | NL69031C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE504456A (en) * | 1950-07-06 | |||
| FR1096538A (en) * | 1953-12-18 | 1955-06-21 | Electronique & Physique | Improvement in microwave tube modulation processes |
-
0
- BE BE455230D patent/BE455230A/xx unknown
- NL NL69031D patent/NL69031C/xx active
- BE BE475335D patent/BE475335A/xx unknown
- BE BE443584D patent/BE443584A/xx unknown
-
1941
- 1941-12-01 CH CH241117D patent/CH241117A/en unknown
-
1944
- 1944-04-11 CH CH250276D patent/CH250276A/en unknown
-
1945
- 1945-12-20 GB GB34493/45A patent/GB640697A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE475335A (en) | |
| NL69031C (en) | |
| BE455230A (en) | |
| CH241117A (en) | 1946-02-15 |
| CH250276A (en) | 1947-08-15 |
| BE443584A (en) |
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