US2932767A - Magnetron having wave-guide output - Google Patents
Magnetron having wave-guide output Download PDFInfo
- Publication number
- US2932767A US2932767A US722237A US72223758A US2932767A US 2932767 A US2932767 A US 2932767A US 722237 A US722237 A US 722237A US 72223758 A US72223758 A US 72223758A US 2932767 A US2932767 A US 2932767A
- Authority
- US
- United States
- Prior art keywords
- wave
- guide
- magnetron
- flange
- anode block
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/08—Dielectric windows
-
- 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
- H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
Definitions
- This invention relates to a magnetron having a waveguide output for connection to a wave-guide of rectangular cross-section, in which, starting from a split-shaped aperture in one of the resonant cavities within a waveguide of circular cross-section, two opposed wall portions diverge in the direction of the glass window at the end of the wave-guide.
- the window is mounted in a dished cover which together with a rim soldered to the end of the Wave-guide produces a filter slit which extends at right-angles to the wave-guide axis.
- the connecting flange having a rectangular aperture is soldered to the magnetron by means of a conductive cylinder the diameter of which is larger than the dished closing member of the wave-guide.
- Magnetrons are also known in which two diverging wall parts in a wave-guide are used and in which both the wave-guide output and the wave-guide to be connected thereto have either circular or rectangular cross-sections.
- the circular cross-section has a limitation in that a transition to the rectangular cross-section is still required, while the rectangular shape suliers from the disadvantage that it requires a comparatively expensive construction in view of the connection to the anode block of the magnetron.
- Magnetrons are also known in which the diverging wall parts extend in a wave-guide having two parallel walls to which two semi-circular walls of gradually increasing size are joined.
- a construction is very expensive.
- the glass window is mounted in a flat connecting flange which with the aid of a conducting cylinder is secured to the magnetron casing so that between this conducting cylinder and the outer surface of the wave-guide, which extends closely up to the flange, a narrow filter slit is left the bottom of which is spaced away from the flange by a distance of from one quarter to one half of the operating wave-length.
- Fig. 1 is a sectional view taken in the plane passing through the axes of the wave-guide and the magnetron, and
- Fig. 2 is a sectional view taken in a plane passing through the axis of the waveguide at right angles to the axis of magnetron.
- reference numeral 1 designates the anode block of the magnetron having fin-shaped anode segments 2.
- a laterally extending conical wave-guide 3 is bored in the magnetron, two segments 4, which start from a narrow aperture 5 in one of the resonant cavities of the magnetron, extending in the direction of the glass Window 6 which is sealed in a flat flange 7.
- the flange 7 is soldered to the anode block by means of a conducting cylinder 8 so that a slit 9 is left between the cylinder 8 and the wave-guide.
- the flange 10 is provided with a continuous annular filter slit 12 the depth of which is about one quarter of the operating wave-length.
- the output coupling described has a small length and its main ufacture is comparatively cheap since the conical wave guide can be bored directly in the anode block.
- a magnetron comprising a hollow anode block having a plurality of tin-shaped anode segments defining a plurality of resonant cavities in said block, said block having an outward flaring bore defining a conical waveguide connected to one of said resonant cavities by an aperture in said anode block, a hollow electrically conducting cylinder surrounding the conical bore and secured at one end to said anode block and defining with said anode block a slit between said cylinder and said waveguide, a flange having a window therein for the transmission of electromagnetic waves secured at the other end to said electrically conducting cylinder, and a rectangular wave-guide having a flange at one end connected to the first-named flange, said latter flange having an annular slit therein the depth of which is about onequarter of the wave-length of the electromagnetic waves transmitted through the window.
- a magnetron comprising a hollow anode block having a plurality of fin-shaped anode segments defining an axis of the magnetron and a plurality of resonant cavities around said axis, said block having an outwardly flaring bore defining a conical wave-guide connected to one of said resonant cavities by an aperture in said anode block, a hollow electrically conducting cylinder closed at one end by a flange having a window therein for the transmission of electromagnetic waves and secured at the other end to a shoulder on said anode block, said electrically conducting cylinder surrounding said conical wave-guide and defining with said anode block a slit between the wall of said wave-guide and the electrically conducting cylinder, a pair of segments lying in a plane normal to said axis extending in said wave-guide from said aperture toward said window and a rectangular wave-guide having a flange at one end secured to the flange at the end of the electrically conducting cylinder, said flange at the end of said
Landscapes
- Microwave Tubes (AREA)
- Constitution Of High-Frequency Heating (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL825341X | 1957-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2932767A true US2932767A (en) | 1960-04-12 |
Family
ID=19841020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US722237A Expired - Lifetime US2932767A (en) | 1957-03-30 | 1958-03-18 | Magnetron having wave-guide output |
Country Status (5)
Country | Link |
---|---|
US (1) | US2932767A (de) |
DE (1) | DE1106427B (de) |
FR (1) | FR1201543A (de) |
GB (1) | GB825341A (de) |
NL (1) | NL215914A (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3065377A (en) * | 1959-12-12 | 1962-11-20 | Kenneth G Eakin | Microwave generator |
US3114123A (en) * | 1960-08-03 | 1963-12-10 | Emi Ltd | Wave guide window having edge sealed in bottom of choke |
US3221278A (en) * | 1962-07-13 | 1965-11-30 | Hughes Aircraft Co | Microwave tube transformer-window |
US3227913A (en) * | 1961-07-13 | 1966-01-04 | Eitel Mccullough Inc | Beam tube and circuitry therefor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1260569B (de) * | 1964-09-30 | 1968-02-08 | Siemens Ag | Vorrichtung zur UEbertragung von kurzen elektromagnetischen Wellen, insbesondere fuer Hoechstfrequenzroehren, und Hoechstfrequenzroehre mit einer solchen Vorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2749477A (en) * | 1951-04-05 | 1956-06-05 | Hartford Nat Bank & Trust Co | Cavity-resonator magnetron |
US2768327A (en) * | 1946-03-11 | 1956-10-23 | Millman Sidney | Wave guide output circuit for a magnetron |
US2820924A (en) * | 1954-01-28 | 1958-01-21 | Litton Industries Inc | Magnetron output coupler |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE482709A (de) * | 1944-02-14 | |||
US2421912A (en) * | 1944-02-16 | 1947-06-10 | Rca Corp | Electron discharge device of the cavity resonator type |
US2477633A (en) * | 1945-11-01 | 1949-08-02 | Charles V Litton | Protective means for electron discharge devices |
BE521168A (de) * | 1950-12-18 |
-
0
- NL NL215914D patent/NL215914A/xx unknown
-
1958
- 1958-03-18 US US722237A patent/US2932767A/en not_active Expired - Lifetime
- 1958-03-26 DE DEN14851A patent/DE1106427B/de active Pending
- 1958-03-27 GB GB9875/58A patent/GB825341A/en not_active Expired
- 1958-03-28 FR FR1201543D patent/FR1201543A/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2768327A (en) * | 1946-03-11 | 1956-10-23 | Millman Sidney | Wave guide output circuit for a magnetron |
US2749477A (en) * | 1951-04-05 | 1956-06-05 | Hartford Nat Bank & Trust Co | Cavity-resonator magnetron |
US2820924A (en) * | 1954-01-28 | 1958-01-21 | Litton Industries Inc | Magnetron output coupler |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3065377A (en) * | 1959-12-12 | 1962-11-20 | Kenneth G Eakin | Microwave generator |
US3114123A (en) * | 1960-08-03 | 1963-12-10 | Emi Ltd | Wave guide window having edge sealed in bottom of choke |
US3227913A (en) * | 1961-07-13 | 1966-01-04 | Eitel Mccullough Inc | Beam tube and circuitry therefor |
US3221278A (en) * | 1962-07-13 | 1965-11-30 | Hughes Aircraft Co | Microwave tube transformer-window |
Also Published As
Publication number | Publication date |
---|---|
DE1106427B (de) | 1961-05-10 |
FR1201543A (fr) | 1959-12-30 |
GB825341A (en) | 1959-12-16 |
NL215914A (de) |
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