GB1078508A - Improvements in or relating to magnetrons - Google Patents
Improvements in or relating to magnetronsInfo
- Publication number
- GB1078508A GB1078508A GB33991/65A GB3399165A GB1078508A GB 1078508 A GB1078508 A GB 1078508A GB 33991/65 A GB33991/65 A GB 33991/65A GB 3399165 A GB3399165 A GB 3399165A GB 1078508 A GB1078508 A GB 1078508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- teeth
- strap
- straps
- projecting
- 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
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/18—Resonators
- H01J23/20—Cavity resonators; Adjustment or tuning thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/18—Resonators
- H01J23/20—Cavity resonators; Adjustment or tuning thereof
- H01J23/213—Simultaneous tuning of more than one resonator, e.g. resonant cavities of a magnetron
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/18—Resonators
- H01J23/22—Connections between resonators, e.g. strapping for connecting resonators of a magnetron
-
- 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)
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
1,078,508. Magnetrons. ENGLISH ELECTRIC VALVE CO. Ltd. March 11, 1966 [Aug. 9, 1965], No. 33991/65. Heading H1D. Each strap of a strapped magnetron includes a plurality of discrete surfaces, e.g. teeth, which co-operate to provide a plurality of inter-strap capacitances distributed along the strap lengths, a rotor having a plurality of discrete conductive parts being arranged such that, upon rotation, the parts in turn traverse the dielectric spaces of the capacitances, thereby permitting a high rate of cyclic frequency tuning. In one embodiment the straps (6, 8, Fig. 1, not shown), are connected to a pair of spaced discs (7, 9) lying in planes perpendicular to the magnetron axis, and having axially projecting teeth (10, 11), the rotor (12) lying between the two discs and having a corresponding set of teeth (13) projecting from each face. In another embodiment (Figs. 2, 3 and 4, not shown), the straps (17, 19) extend axially and have radially projecting teeth (10<SP>1</SP>, 11<SP>1</SP>), the end of a cylindrical rotor (112) having a circumferential array of axial slot apertures (13<SP>1</SP>) projecting between the two straps. The rotor may be rotated magnetically, and the opposite end of the anode block may be provided with a normal strap system.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33991/65A GB1078508A (en) | 1965-08-09 | 1965-08-09 | Improvements in or relating to magnetrons |
US566612A US3441796A (en) | 1965-08-09 | 1966-07-20 | Magnetrons having cyclically varying frequencies |
CH1084966A CH447399A (en) | 1965-08-09 | 1966-07-27 | Magnetron with shunted cavities |
FR72113A FR1498510A (en) | 1965-08-09 | 1966-08-04 | Twin connection magnetrons |
DE19661541002 DE1541002A1 (en) | 1965-08-09 | 1966-08-04 | Magnetron with coupling lines |
NL6611176A NL6611176A (en) | 1965-08-09 | 1966-08-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33991/65A GB1078508A (en) | 1965-08-09 | 1965-08-09 | Improvements in or relating to magnetrons |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1078508A true GB1078508A (en) | 1967-08-09 |
Family
ID=10359989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33991/65A Expired GB1078508A (en) | 1965-08-09 | 1965-08-09 | Improvements in or relating to magnetrons |
Country Status (6)
Country | Link |
---|---|
US (1) | US3441796A (en) |
CH (1) | CH447399A (en) |
DE (1) | DE1541002A1 (en) |
FR (1) | FR1498510A (en) |
GB (1) | GB1078508A (en) |
NL (1) | NL6611176A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192310A (en) * | 1984-06-14 | 1988-01-06 | Airtech Ltd | Tunable RF cavity device |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3899715A (en) * | 1972-06-22 | 1975-08-12 | English Electric Valve Co Ltd | Magnetron with rotatable tuning means |
GB1485949A (en) * | 1973-11-07 | 1977-09-14 | Emi Varian Ltd | Magnetrons |
US3914644A (en) * | 1974-04-18 | 1975-10-21 | Varian Associates | Rotary tuner for circular electric mode crossed field tube |
US3904919A (en) * | 1974-05-06 | 1975-09-09 | Varian Associates | Rotary tuner for a circular electric mode crossed field tube |
SE399151B (en) * | 1976-05-21 | 1978-01-30 | Philips Svenska Ab | VOTE MAGNETRON |
GB1548038A (en) * | 1976-09-16 | 1979-07-04 | Emi Varian Ltd | Spin tuned magnetrons |
EP0018724B1 (en) * | 1979-05-01 | 1981-10-07 | Thorn Emi-Varian Limited | Spin-tuned magnetron |
US4555680A (en) * | 1983-07-05 | 1985-11-26 | M/A-Com, Inc. | Magnetron tuned programmably using step motor |
SE451356B (en) * | 1983-08-05 | 1987-09-28 | Philips Norden Ab | DEVICE AT A TEMPORARY MAGNET |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2542899A (en) * | 1944-11-30 | 1951-02-20 | Raytheon Mfg Co | Cavity resonator electron discharge device |
US2506955A (en) * | 1945-05-14 | 1950-05-09 | Bell Telephone Labor Inc | Tunable high-frequency circuits |
US2666165A (en) * | 1946-01-03 | 1954-01-12 | Hutchinson Franklin | Tunable magnetron oscillator |
FR1038195A (en) * | 1951-06-07 | 1953-09-25 | Csf | Multi-Cavity Resonant Circuit Enhancements |
NL285300A (en) * | 1961-11-15 | |||
US3379925A (en) * | 1962-12-24 | 1968-04-23 | Raytheon Co | Tunable magnetron having a capacitive transducer magnetically coupled to the tuning member |
US3343031A (en) * | 1963-12-21 | 1967-09-19 | Philips Corp | Tunable electronic tube |
US3365609A (en) * | 1964-09-01 | 1968-01-23 | Philips Corp | Transducer for use with variable frequency magnetrons |
-
1965
- 1965-08-09 GB GB33991/65A patent/GB1078508A/en not_active Expired
-
1966
- 1966-07-20 US US566612A patent/US3441796A/en not_active Expired - Lifetime
- 1966-07-27 CH CH1084966A patent/CH447399A/en unknown
- 1966-08-04 FR FR72113A patent/FR1498510A/en not_active Expired
- 1966-08-04 DE DE19661541002 patent/DE1541002A1/en active Pending
- 1966-08-09 NL NL6611176A patent/NL6611176A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192310A (en) * | 1984-06-14 | 1988-01-06 | Airtech Ltd | Tunable RF cavity device |
Also Published As
Publication number | Publication date |
---|---|
NL6611176A (en) | 1967-02-10 |
US3441796A (en) | 1969-04-29 |
DE1541002A1 (en) | 1969-07-24 |
CH447399A (en) | 1967-11-30 |
FR1498510A (en) | 1967-10-20 |
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