GB642488A - Improvements in or relating to magnetrons - Google Patents
Improvements in or relating to magnetronsInfo
- Publication number
- GB642488A GB642488A GB1640248A GB1640248A GB642488A GB 642488 A GB642488 A GB 642488A GB 1640248 A GB1640248 A GB 1640248A GB 1640248 A GB1640248 A GB 1640248A GB 642488 A GB642488 A GB 642488A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wave
- cavities
- oscillator
- polepiece
- guide
- 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
- H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
- H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
- H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix
- H01J25/587—Multi-cavity magnetrons
- H01J25/593—Rising-sun magnetrons
Landscapes
- Microwave Tubes (AREA)
Abstract
642,488. Magnetrons. M-O VALVE CO., Ltd., and WILLSHAW, W. E. June 18, 1948, Nos. 16402 and 29946. [Class 39 (i)] A resonant cavity magnetron oscillator of the " rising sun " type has at least one polepiece pierced by a hole coaxial with the electron orbit space and adapted to act as a wave-guide either to provide an output path or to control the oscillation frequency. As shown, the magnetron comprises a cathode 11, Fig. 1, sealed to a magnetic polepiece 5 by a glass insert 8, a cylindrical copper block 1 having cavities 4, Fig. 2, and a polepiece 5<SP>1</SP> apertured at 22 to receive a plug 27 of dielectric material to form a wave-guide coupled to a cavity 25 tuned by piston 28. The wave-guide 22 may be used to draw an output from the oscillator, or may be used to move the oscillator, output then being taken from one of the cavities 4 by wave guides 16, 20. The polepieces 5, 51 are preferably sealed to the block 1, and the con. tainer so formed sealed by a ceramic plate 26. According to the Provisional Specification, the aperture 22 may have radial slots in register with the cavities 4, and the aperture 22 may flare outwardly away from the block 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1640248A GB642488A (en) | 1948-06-18 | 1948-06-18 | Improvements in or relating to magnetrons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1640248A GB642488A (en) | 1948-06-18 | 1948-06-18 | Improvements in or relating to magnetrons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB642488A true GB642488A (en) | 1950-09-06 |
Family
ID=10076675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1640248A Expired GB642488A (en) | 1948-06-18 | 1948-06-18 | Improvements in or relating to magnetrons |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB642488A (en) |
-
1948
- 1948-06-18 GB GB1640248A patent/GB642488A/en not_active Expired
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