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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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JP3732729B2 |
To realize a magnetron of a high output as well as a low output by improving strap for the magnetron to prevent deformation and breakage for thermal stress as well as structural deviation from surrounding members in advance. Magnetron of...
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JP3721111B2 |
To provide a gyrotron device in which heating of the ion pump by diffraction wave is prevented and a prescribed exhaust-air conductance can be steadily obtained. The ion pump 12 of the gyrotron device is installed on the waveguide 11 thr...
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JP2005259508A |
To provide a magnetron for microwave oven which can suppress unnecessary noises, especially the 6th higher-harmonic wave and 7th higher-harmonic wave.The magnetron for microwave oven is equipped with a cathode 12 located inside an anode ...
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JP2005222908A |
To provide a magnetron which sufficiently reduces an unnecessary radiation, and simultaneously prevents the degradation of oscillation efficiency.In the magnetron 41, let Rp be the radius of the plane part 45b of a magnetic pole segment ...
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JP2005209539A |
To provide a magnetron in which fluctuations in the electric properties and mechanical strength of a filament are small, fluctuations of life as a magnetron are small, and quality as the magnetron is stabilized.In the magnetron 10 in whi...
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JP2005174928A |
To provide an electrodeless lamp system usable not only for a illumination but also for a low output light source of electronic equipment by reducing a whole size of the lamp system.The lamp system is composed of a magnetron 101 for gene...
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JP3649851B2 |
To provide a coaxial magnetron capable of easily performing heating process for getter activation without lowering of a withstand voltage at a peripheral input part by installing a getter in a cavity for the getter coupled with an axial ...
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JP2005116355A |
To provide a microwave tube system and a microwave tube which can prevent an unnecessary operation stop by suppressing an easy output of an alarm even if discharge is generated in the microwave tube.This microwave tube system has a micro...
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JP2005093330A |
To provide a magnetron negative electrode structure capable of preventing an external terminal inserted in a stem insulator from turning without increasing a manufacturing cost etc.Tip ends of base end shaft parts 53a, 54a of external te...
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JP2005093176A |
To provide a traveling wave tube equipped with a heat radiation structure capable of securing a space for the traveling wave tube on the upper part of a heat radiation body without lowering the property of conducting heat from a collecto...
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JP2005085750A |
To provide a magnetron for a microwave oven for simplifying manufacturing process and preventing defective brazing caused by insufficient injection of brazing material, and having an anode making the magnetron show the optimal performanc...
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JP2005056785A |
To provide a magnetron equipped with a cathode part with an elongated life in a simple structure.The cathode part 13 is structured by heating a cathode base plate 10 at 400 to 600°C in hydrocarbon system atmosphere such as methane, havi...
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JP3622742B2 |
A magnetron in accordance with the present invention is configured so that an antenna lead (17) connected to a desired position of an anode segment (2) passes through a magnetic pole piece (7) and a metal cylinder (8) so as not to make c...
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JP3622423B2 |
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JP2005505112A |
The subject of the present invention is a very high-power microwave generator using the virtual cathode effect. The microwave generator (60) comprises an emitter (62) capable of producing electrons in a microwave output circuit (64, 66),...
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JP2005038820A |
To provide a magnetron with which a terminal rod to be connected to an outer power source can be easily installed.This is the magnetron provided with a filament formed in a coil state, a pair of shields fixed respectively to both end par...
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JP3614478B2 |
PURPOSE: To provide an improved linear electron beam tube constitutional body. CONSTITUTION: An induction output quadrupole tube is provided with a cylindrical ceramic envelope body 1 and an electron gun comprising a cathode 2 and a grid...
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JP3606974B2 |
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JP3550082B2 |
To provide a magnetron which can reduce a thickness of cylinder for constituting an anode while improving heat resistance, and increase thermal stability and a lifetime and reduce the cost of production. This magnetron is of cylinder sha...
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JP2004520693A |
A magnetron comprises an anode (2) having vaner (3a, 3b) which define a plurality of cavities. A dielectric resonator (7) is located such that it is in communication with at least one of the vanes (3a, 3b). In use, the dielectric resonat...
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JP2004193104A |
To provide a magnetron in which reduction of size and reduction of production cost are realized, and performance deterioration due to thermal demagnetization of the permanent magnet is suppressed, and a microwave oven and a high frequenc...
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JP2004172092A |
To efficiently attenuate generation of higher harmonic wave by adjusting the size of a center part of an upper pole piece and to improve a microwave output by preventing power attrition through shielding the higher harmonic wave.The magn...
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JP2004172081A |
To provide a magnetron capable of preventing deterioration of vacuum caused by bonding failure between members; to provide the magnetron where assembly between the members is easy; to provide a joining method between the members of the m...
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JP3515794B2 |
PURPOSE: To provide an atomic frequency standard device for relaxing or overcoming at least a part of the defects of an atomic frequency standard device. CONSTITUTION: A heating means 58 for surrounding an enclosure 43 for forming a micr...
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JP2004103550A |
To provide a magnetron with an improved oscillation efficiency, sufficiently lowering an unnecessary radiation and preventing the deterioration of the oscillation efficiency.The magnetron is characterized in that, provided that a radius ...
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JP2004510293A |
A klystron tube for amplifying signals at microwave radio frequencies utilizes an electron source for emitting electrons through a field focused by a high energy magnet in the RF section of the tube. After the electrons have passed throu...
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JP3511293B2 |
A super-power, high voltage klystron includes an output cavity operating in the TM01x mode, where x is greater than zero.
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JP2004071533A |
To provide a magnetron by which leakage of electrons is prevented by varying the geometric structures of an upper part shield and a lower part shield to make space symmetrical an electric charge distribution within a working.The magnetro...
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JP2004071531A |
To provide a magnetron for an electronic range, which can make the frequency of microwaves emitted to the outside superior by reducing high-frequency noise caused by a speed difference between electrons transferring through vanes of the ...
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JP2004071532A |
To provide a magnetron by which leakage of electrons is prevented by varying the geometric structures of an upper shield and a lower shield to make symmetrical an electric charge distribution within a working space.The magnetron comprise...
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JP3502512B2 |
To provide an electromagnetic field orthogonal amplifier tube CFA with little spurious noise or noise near operating frequency by suppressing excessive electrons in a part where crowded electrons are most vigorously collided to a cathode...
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JP2004063441A |
To provide a magnetron of a microwave oven improving the quality and efficiency of the oscillated frequency by rising a Q value without changing the frequency but by changing a geometric structure of large and small strip rings.This magn...
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JP2004055510A |
To provide a magnetron having the same frequency characteristics between respective resonators by improving an asymmetric structure between the resonators.This magnetron includes a filament 10 to emit thermoelectrons, a plurality of posi...
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JP3492915B2 |
To provide a traveling wave tube which is excellent in linearity of amplitude and phase and has multi-stage collectors of high efficiency. This traveling wave tube is equipped with a low speed wave structure 14, a microwave signal source...
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JP2003535433A |
A low-power wide-bandwidth klystron comprises a cathode having an electron emitting surface capable of emitting an electron beam and a collector spaced from said cathode and designed to collect the electron beam emitted from the cathode....
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JP2003317638A |
To provide an air-cooled magnetron with an excellent cooling performance through forming of heat-discharging passages for both an anode and a magnet.An anode 11 of a cylindrical shape with a resonant space formed inside and equipped with...
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JP3444999B2 |
PURPOSE: To miniaturize a gyrotron device of high operability at a low cost and reduce a running cost by constituting a magnetic field generator in the gyrotron device of a permanent magnet and electromagnets. CONSTITUTION: A gyrotron 20...
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JP3431372B2 |
To modulate the high-frequency output without changing the energy of electromagnetic waves by the modulation of an anode power source. This power source is provided with an electron gun section constituted of a cathode electrode 2 and an...
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JP3414660B2 |
To provide miniaturization, reduction of an operation cost, facilitation of operability and improvement of reliability. This device is equipped with a gyrotron tube 1 in which an electron gun 2, a cavity 3, a collector 4 and an output wi...
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JP3414977B2 |
To realize highly efficient oscillation without increasing the cost of a gyrotron, and provide a gyrotron capable of easily operating. A gyrotron device 300 consists an electron gun 1, a cavity resonator 6, a collector 7, an output windo...
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JP3409487B2 |
PURPOSE: To miniaturize a gyrotron apparatus and improve the operationability and reliability by carrying out oscillation movement of the gyrotron by a magnetic field generating apparatus composed of permanent magnets and electromagnets ...
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JP3400233B2 |
To drive a magnetron in low voltage, and perform highly efficient oscillation by constituting it of a magnet arranged so as to impart a magnetic field in the direction orthogonal to an impression electric field and an electron emitting p...
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JP3400232B2 |
To provide a magnetron which can dispense with a high voltage transformer and can be driven in low voltage and can dispense with a voltage impressing exclusive power source to a gate electrode by constituting so that the gate electrode i...
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JP3401821B2 |
PURPOSE: To obtain an electron gun for emitting a hollow electron beam, in which the discharge is prevented and whose operation is stable. CONSTITUTION: The degree of vacuum in a support space around a support mechanism 3 supporting a ca...
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JP3397276B2 |
To improve oscillation efficiency and improve processing precision by preventing vein deformation and electrically connecting vein every other one. An anode 1 has a structure in which plural flat plate shaped veins 2 and 3 are erected in...
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JP3394395B2 |
To play a role of cushioning at connecting time, keep airtightness so as not to let sealing gas escape, and prevent leakage of a high frequency by adding an O ring and a high frequency absorbing member to a flange upper surface inside of...
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JP2003100226A |
To provide a gyrotron having a mode converter that generates effectively a millimeter wave beam while suppressing parasitic mode oscillation.The gyrotron comprises: an electron gun which has an anode and a cathode and discharges an elect...
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JP2003100225A |
To provide a magnetron capable of preventing a moving-off of an annular metal plate for conducting magnetic field around a cathode from a prescribed position even if vibrations or impacts are applied to it in assembling, improving the wo...
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