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JP2010192353A |
To provide an electron tube capable of effectively discharging a gas generated from an electron gun side and a collector side without having a complicated structure and suitably restraining electric discharge in the tube and variation of...
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JP4499093B2 |
The invention relates to a microwave tube comprising an electron gun generating an electron beam in a cylindrical microwave structure of the tube. The microwave structure delivers a microwave at one output. A collector for collecting ele...
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JP4494735B2 |
Anode (10) with a 2450 MHz resonance frequency, and magnetron therewith, the anode (10) including a cylindrical anode body (11) with an inside diameter in a range of 32.5 to 34.0 mm, a total of ten vanes (12) fitted to an inside circumfe...
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JP2010086847A |
To provide a traveling-wave tube capable of eliminating a delay circuit, making an effective band extremely wide, and easily obtaining a large amount of output, with a simple structure using a waveguide of a TM mode as a coupled circuit....
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JP4437042B2 |
A magnetron output arrangement includes a coaxial output adapted to be coupled in an endfire configuration to a rectangular waveguide. The waveguide has a flange for mating with the magnetron output arrangement. The coaxial output includ...
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JP2010049823A |
To provide a gyrotron that allows brazing and soldering between an RF absorber 12 and a joint component 16 of a cooling structure 15 to be excellently executed in order to prevent the occurrence of cracking in the ceramic RF absorber 12....
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JP4405674B2 |
A multibeam electron tube with several approximately parallel electron beams passing through a body. Among the beams, at least some define an interbeam volume, each beam defining the interbeam volume being subjected to a perturbing azimu...
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JP2010501109A |
An electron beam amplification device provides trajectory modulation of an electron beam, and includes an electron gun, a modulator, an interceptor, an output circuit, and a collector. The electron gun produces an electron beam. The modu...
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JP4355135B2 |
A pulse magnetron includes a cylindrical shell anode, a cathode provided at the center of the anode having a number of vanes mounted radially on an inner wall of the cylindrical anode shell, and a pair of pole pieces provided for applyin...
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JP4301958B2 |
A magnetron comprises a cathode 5, an anode 2 having at least one vane 3, which defines a plurality of cavities. A dielectric resonator 7 is located between the vane(s) 3 and magnetic pole-piece 6a, such that it is in communication with ...
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JP4299997B2 |
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JP4252274B2 |
The object to the present invention is to provide a magnetron which can reduce spurious oscillation such as the pi-1 mode which presents a problem particularly in magnetrons and can reduce spurious radiations without placing filters. The...
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JP4253385B2 |
A linear magnetron cathode is disclosed which may be used as a vapor or plasma source for coating deposition or ion processing. The cathode has the shape of an elongated rectangular bar with vaporization of material occurring from an eva...
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JP4204505B2 |
A magnetron oscillating apparatus includes a magnetron, power supply unit, and switch circuit. The magnetron oscillates a microwave. The power supply unit applies a power to the magnetron. The switch circuit is connected between the powe...
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JP4197299B2 |
For an anode assembly 51 of a magnetron, a plurality of plate shaped vanes 54 radially arranged at an inner circumference of the roughly round shaped anode assembly 53 has a end portion arranged at a central axis of the anode assembly 53...
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JP4187658B2 |
A collector for a linear beam has a segmented ceramic collector core that permits sustained operation at high temperatures and power densities. The collector provides efficient heat transfer from the while reducing stresses on collector ...
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JP2008519415A |
An inductive output tube (IOT) operates in a frequency range above 1000 MHz. An output window may be provided to separate a vacuum portion of the IOT from an atmospheric pressure portion of the IOT, the output window being surrounded by ...
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JP4078307B2 |
An electron beam tube apparatus comprises a plurality of electron beam tubes having a common output cavity. Power is coupled to the common cavity from the resonant cavities of the beam tubes, and is then fed to an output line. This arran...
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JP4074240B2 |
A method of correcting deflection distortion includes dividing a deflection area to which a charged-particle beam is deflected into equal initial blocks as an initial setting, calculating an initial aberration amount for each of the init...
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JP4065431B2 |
An electromagnetic radiation source is provided which includes an anode and a cathode separated by an anode-cathode space. The source further includes electrical contacts for applying a dc voltage between the anode and the cathode and es...
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JP4061021B2 |
An electron beam tube such as a klystron includes a penultimate resonant cavity (22) located before the output cavity (14). The penultimate resonant cavity (22) is arranged to be inductively coupled, being resonant at a frequency which i...
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JP4022624B2 |
A microwave generator comprises a magnetron having an anode and a cathode, oscillating by the current supplied to the anode, and generating a microwave, electric-field controlling means for controlling one of the frequency/phase and the ...
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JP4006980B2 |
In a magnetron apparatus in accordance with the present invention, a first notch 17, a second notch 19 and a third notch 20 are formed in each of anode segments 15 disposed radially inside an anode cylinder 6, whereby the passage of high...
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JP4004850B2 |
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JP3996130B2 |
The magnetron has a positive polar section together with a positive polar body (102). A set of vanes (104) is connected to an inner surface of the polar body, and radially arranged towards a central axis of the polar body. Each vane is p...
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JP3980786B2 |
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JP3975005B2 |
A microwave oven includes a microwave generating apparatus having a cathode, a first grid for controlling the flow of electrons from the cathode, the first grid having holes for converting electrons from the cathode to the electron beams...
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JP3974613B2 |
A high voltage input apparatus for a magnetron, in which first protrusions formed on lead conductors (50,52) are caught by insulators (62,64) and an insulating case (92), a ground metal (102) is bonded to the insulating case, and expande...
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JP3975006B2 |
A microwave oven includes a microwave generating apparatus having a cathode, a first grid for controlling the flow of electrons from the cathode, the first grid having holes for converting electrons from the cathode to the electron beams...
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JP2007228219A |
To provide a new means capable of efficiently introducing microwaves by a magnetron to a load with a narrow introduceable microwave frequency band. This device that can efficiently and stably introduce a magnetron output to the load is o...
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JP3970658B2 |
To constitute a circuit with a few component parts, by which destroy of a microwave tube by being impressed with excessive voltage at the time of OFF of power source voltage is prevented, in an electric power device for the microwave tub...
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JP3957670B2 |
To provide a circuit to supply a power source to a traveling-wave tube having a structure which is small, inexpensive and strong against vibration and impact. A first control element 16 is turned on when the potential of a helix electrod...
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JP3944470B2 |
To provide a magnetron for a microwave oven with secured reliability at a brazed part and with an excellent higher harmonic restraining effect. The magnetron for the microwave oven provided with a metal sealing body 19 forming a high-fre...
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JP3918996B2 |
To protect a gyrotron as a load by switching a power-supply source and an accelerating power source at the same time, and to modulate an oscillating power of the gyrotron by switching beam currents at high speed through starting up and d...
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JP3903450B2 |
To simplify a microwave generating device by providing a first grid having multiple holes for controlling and focusing the electron flow from a cathode on a heating element and a first secondary electron emission decreasing means, a chok...
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JP3900377B2 |
To provide an inexpensive electron beam tube. This electron beam tube includes a single metal cylinder 11 and a plurality of wall parts 12-19 in the transverse direction, which are installed in the cylinder 11 and partition resonant cavi...
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JP3902480B2 |
To provide a magnetron with a shield case having a compact figure in the axial direction of the magnetron for preventing electric discharge from a stem insulator, and its manufacturing method. An inductor coil 8 is provided between a pai...
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JP3899060B2 |
To provide a magnetron in which magnetic flux density in a working space is uniform while using only one magnet, and a microwave oven installed with this magnetron, and further a high frequency heating device. The magnetron comprises an ...
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JP2007503084A |
A phase locked magnetron comprises a cathode and anode and an interaction space in between. The cathode is coupled to an injected locking signal, which prompts the operation of the magnetron to be in phase with the phase of the locking s...
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JP2007502522A |
The present invention is directed in one aspect to methods of making free-standing, internally-supported, three-dimensional objects having an outer surface comprising a plurality of intersecting facets wherein a sub-set of the intersecti...
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JP3877294B2 |
To provide a driving method of a cathode capable of switching the cathode with high precision without generating axis shift of an electron beam, capable of prolonging the life of the cathode while keeping a focus property of the electron...
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JP3845405B2 |
To provide a power source device for a traveling wave tube of a small size and low cost. The power source device comprises an oscillation circuit 11 generating an oscillation signal having a frequency optionally selected from a plurality...
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JP3846908B2 |
PURPOSE: To operate a device with the maximum operating frequency by reducing or eliminating undesirable vibrations caused between a cathode and an anode. CONSTITUTION: In an electron beam tube such as an IOT device, a ferrite-filled sil...
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JP2006278285A |
To provide a gyrotron which saves on power and is designed compact.In this gyrotron, the inside 2 of an oscillation tube is constituted of three areas comprising: an electron gun part 21 provided with an electron gun 3; a cavity part 22 ...
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JP3817715B2 |
To provide a cyclotron microwave converter not requiring a large static magnetic field device, that is, a microwave-DC current converter. This microwave-DC current converter comprises (a) an electron source 1 which delivers an electron 2...
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JP3799385B2 |
To provide a gyrotron device which enables widening of its frequency band by raising cooling efficiency. A vacuum window 14 for high-frequency is provided with a window base plate 23 which is made of synthetic diamond. Thin coatings 24 o...
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JP3792126B2 |
A miniaturized terahertz radiation source based on the Smith-Purcell effect is provided, in which, from a focused electron source, a high-energy bundle of electrons is transmitted at a defined distance over a reflection diffraction grati...
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JP3759122B2 |
To provide a magnetron for microwave oven of which total length is reduced by reducing the height of a filter box constructing the magnetron. The magnetron is made to include a second insulation body forming an electrically extended insu...
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JP3754033B2 |
To facilitate maintenance and operation of a gyrotron device, to miniaturize an exciting power source for an electromagnetic and to extremely reduce running cost by increasing oscillation efficiency. The gyrotron device, which comprises ...
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JP2006507648A |
An electrode structure for a vacuum tube is formed by having a ceramic insulating body act as the tube wall. Electrode areas are formed on the inside of the tube by coating the inside of the tube wall with a conductor. These electrode ar...
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