GB669385A - Improvements in multicavity magnetron devices - Google Patents
Improvements in multicavity magnetron devicesInfo
- Publication number
- GB669385A GB669385A GB37774/46A GB3777446A GB669385A GB 669385 A GB669385 A GB 669385A GB 37774/46 A GB37774/46 A GB 37774/46A GB 3777446 A GB3777446 A GB 3777446A GB 669385 A GB669385 A GB 669385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- block
- leading
- conductors
- bore
- 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
Landscapes
- Microwave Tubes (AREA)
- Lasers (AREA)
Abstract
669,385. Magnetrons. WESTERN ELECTRIC CO., Inc. Dec. 23, 1946 [April 5, 1944], No. 37774/46. Class 39 (i). A multicavity magnetron including a conductive block 13, Fig. 2, having a bore containing an anode member 17, and a cathode 30, has an output assembly supporting an output conductor 46 and including a coupler member 40 provided with a sleeve portion 42 fitting in and extending through an aperture 16 leading from a face of the block 13 to the bore, the anode member 17 abutting against the inner end of the sleeve 42, Fig. 7, whereby a coupling loop 47 carried by the output conductor 46 is disposed adjacent to the anode member 17. The anode member 17 comprises a plurality of resonent cavities 18 separated by anode segments 19 and is provided on its faces with recesses in which arcuate straps 20 are positioned. The bore is closed at each end by a plate 21 having an insert 22 therein of magnetic material which reduce the reluctance of the flux path for the magnetic field. Overheating of the anode assembly during operation is prevented by cooling fins 65, Fig. 1, having edge portions fitted in slots in the block 13 and provided with curved portions 68 allowing passage of a tool for adjusting the tuner screw 57 referred to later. Two further apertures 15, Fig. 3, extend from another face of the block 13 to the bore, a second coupler member 23 associated with means carrying two leading-in conductors 28 being seated on said face, the cathode 30 being supported between the leading-in conductors 28 or between metallic supports 29 joined to the leading-in conductors. The stem 26, carrying the leading-in conductors 28, is enclosed 'by a protective cap 69 of vitreous material. An insulating stem portion 44, 45 is sealed to the output conductor 46 and to the coupler member 40 on which is mounted a tubular conductor 48 intersected by a rectangular waveguide element 49 provided with a coupling flange 50, the output conductor 46 and the tubular conductor 48 forming a coaxial line. The wave-guide element 49 is provided with a deformable diaphragm member 60, Fig. 5, for matching the impedance thereof and that of the coaxial line 46, 48. A tuning assembly for'the magnetron extends through apertures in the block 13 and anode 17 to project into one of the anode cavities 18 and comprises a flexible diaphragm 54 carrying a plug member 53 on one side and a screw 57 on the other side co-operating with a rotatable threaded sleeve 56 mounted on the block 13. The bearing surfaces of the tuning structure are of stainless steel to leaded bronze in order to prevent seizing due to high temperatures during fabrication. The cathode assembly, Fig. 6, comprises a nickel cylinder 31 provided with circular flanges 33 on one of which is an integral rib 34. A mesh cylinder 35 having an electron emissive coating surrounds the cylinder 31. One flange 33 is provided with a recess containing a cylindrical insert 36 of insulating material carrying a metallic eyelet 37,. a helical, heater element 39 coated with insulating material being welded at one end to the eyelet 37 and at the other end to the rib 34.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US529598A US2419572A (en) | 1944-04-05 | 1944-04-05 | Electron discharge device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB669385A true GB669385A (en) | 1952-04-02 |
Family
ID=24110562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37774/46A Expired GB669385A (en) | 1944-04-05 | 1946-12-23 | Improvements in multicavity magnetron devices |
Country Status (2)
Country | Link |
---|---|
US (1) | US2419572A (en) |
GB (1) | GB669385A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2152274A (en) * | 1984-01-04 | 1985-07-31 | England Electric Valve Company | Coupling a discharge tube output to a waveguide |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445282A (en) * | 1944-05-19 | 1948-07-13 | Bell Telephone Labor Inc | Tuning arrangement for cavity resonators |
US2466765A (en) * | 1944-09-22 | 1949-04-12 | Bell Telephone Labor Inc | Magnetron inductive tuner employing variably spaced parallel plate transmission line |
US2478534A (en) * | 1944-12-13 | 1949-08-09 | Raytheon Mfg Co | Electron discharge device of the cavity resonator type |
US2490845A (en) * | 1945-01-20 | 1949-12-13 | Sperry Corp | High-frequency cavity resonator apparatus |
US2477317A (en) * | 1945-03-21 | 1949-07-26 | Raytheon Mfg Co | Electron discharge device |
US2455310A (en) * | 1945-12-10 | 1948-11-30 | Sylvania Electric Prod | Ultra high frequency tube |
US2659033A (en) * | 1946-03-29 | 1953-11-10 | Milton D Hare | Tunable squirrel cage magnetron |
US2477903A (en) * | 1946-05-10 | 1949-08-02 | Raytheon Mfg Co | Mechanical movement |
US2559506A (en) * | 1946-11-22 | 1951-07-03 | Rca Corp | Magnetron |
FR963882A (en) * | 1947-04-03 | 1950-07-24 | ||
US3039092A (en) * | 1947-04-25 | 1962-06-12 | Robert F Rychlik | Radio object locating system of continuously variable frequency |
US2533741A (en) * | 1947-11-20 | 1950-12-12 | Westinghouse Electric Corp | Tuning means for magnetrons |
US2852719A (en) * | 1952-11-29 | 1958-09-16 | Litton Industries Inc | Tunable magnetron |
US2922127A (en) * | 1957-01-16 | 1960-01-19 | Edward C Dench | Output coupling |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2167201A (en) * | 1935-06-28 | 1939-07-25 | Pintsch Julius Kg | Electron tube |
GB509102A (en) * | 1937-10-08 | 1939-07-11 | Electricitatsgesellschaft Sani | Improvements in vacuum electric discharge apparatus |
NL63088C (en) * | 1940-10-24 |
-
1944
- 1944-04-05 US US529598A patent/US2419572A/en not_active Expired - Lifetime
-
1946
- 1946-12-23 GB GB37774/46A patent/GB669385A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2152274A (en) * | 1984-01-04 | 1985-07-31 | England Electric Valve Company | Coupling a discharge tube output to a waveguide |
Also Published As
Publication number | Publication date |
---|---|
US2419572A (en) | 1947-04-29 |
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