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JP6737881B2 |
A multibeam-inductive-output-tube amplifier comprises an output cavity and a plurality of electron guns each intended to emit an electron beam through the output cavity, each electron gun comprising a cathode intended to emit the electro...
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JP6723043B2 |
To provide a magnetron capable of effectively suppressing a plurality of higher harmonic wave components with a simple configuration. A magnetron 1 is designed so that: a choke part 60 consisting of a first choke 30 and a second choke 32...
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JP2020092054A |
To provide a cathode structure capable of improving reliability.The cathode structure includes: a cathode base having a first surface and a second surface opposite to the first surface; a tubular member having a first opening end fixed t...
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JP6691530B2 |
A UV system for irradiating a substrate includes a RF source capable of generating RF energy, a UV lamp capable of emitting UV energy when excited by the RF energy generated by the RF source, and a monitor coupled to the RF source. The m...
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JP6674175B2 |
To provide an airtight window structure for a microwave electron tube, which is hard to cause a stress concentration on a ceramic window at the time of assembly.An airtight window structure 20 for a microwave electron tube comprises: a f...
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JP6661442B2 |
To improve a yield at the time of assembling a cathode part as compared with the conventional one.An engagement part 40 formed by a short diameter part 40A having a length of a diameter direction shorter than a diameter L1 of a negative ...
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JP6663290B2 |
To provide a coaxial magnetron capable of enhancing the maximum oscillation output by promoting heat radiation from an anode portion and improving the entire cooling efficiency, and capable of eliminating the effect caused by expansion a...
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JP6648901B2 |
A slow-wave circuit is provided with a folded waveguide and a beam hole. The beam hole is arranged between an edge and a center in the direction of width of the folded waveguide. The beam hole is preferably arranged at an edge in the dir...
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JP2020009666A |
To provide an impregnated cathode structure capable of making surface temperature of a cathode substrate uniform.The impregnated cathode structure includes: a cathode substrate, having an electron emission surface on one side, impregnate...
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JP2020009540A |
To provide a traveling-wave tube capable of suppressing collision of an electron beam to a solder material.A traveling-wave tube 1 comprises: a delay wave circuit 3; a RF input 5; an electron gun 7; a RF output 9; and a collector 11. The...
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JP2019220268A |
To provide an electron gun that is easy to assemble, or to provide an electron gun capable of suppressing a decrease in temperature of the electron emission surface.An electron gun 1a includes an electron emission source 10, a wehnelt 20...
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JP6619447B2 |
Provided are a slow wave circuit and a traveling wave tube suitable for an increase in fineness with regard to processing beam holes, and suitable for higher frequencies. A slow wave circuit (10) includes a meandering waveguide (1) and a...
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JP6607445B2 |
Antenna part (1) of a magnetron includes exhaust portion (15) that is connected to antenna conductor (4) derived from anode part (2) and has an output terminal from which a microwave is outputted, and output-side ceramic stem (11) that h...
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JP6591134B2 |
An electromagnetic wave generator (100) is provided with: an oscillator (6) including a conductor plate (1), which has a cavity resonance section (11), and an electron emitter (3), which is disposed facing one surface of the conductor pl...
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JP2019175769A |
To obtain a traveling wave tube reducing stress on a waveguide part and using a vacuum envelope in which the waveguide part has excellent accuracy, and also to provide a manufacturing method thereof.Disclosed is a traveling wave tube equ...
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JP2019175768A |
To obtain a traveling wave tube using a vacuum envelope which suppresses the generation of burrs and has an inner diameter with high accuracy.A traveling wave tube includes: a vacuum envelope formed by alternately arranging a pole piece ...
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JP2019164924A |
To ensure a sufficient creepage distance of insulation withstanding high voltage in the vacuum region of a cathode support body, while restraining variation of the cathode position due to oscillation, and the like.In a magnetron having a...
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JP2019160526A |
To provide an impregnated cathode structure capable of improving heat dissipation at the end of a heater and improving the strength of the end of the heater.An impregnated cathode structure according to an embodiment includes a cathode s...
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JP6569704B2 |
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JP2019140026A |
To provide an electron gun capable of restraining temperature drop of electron emission surface, while ensuring high manufacturing yield.An electron gun 1a includes an electron emission source 10, a Wehnelt 20, a support-plate 30, and mu...
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JP2019133873A |
To provide a klystron capable of coping with a mass increase of a collector of a klystron body and a mass increase of an X-ray shield.A klystron 10 comprises a klystron body 11, a focusing magnetic field device 12, an X-ray shield, an an...
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JP6532035B2 |
Magnetron (1) includes anode cylinder (5), cooling block (10), a fastener, and a pair of pipe joints (14a, 14b). The fastener is disposed between the pipe joints (14a, 14b) of cooling block (10), and a discontinuous part between both end...
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JP6494374B2 |
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JP6494353B2 |
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JP6487057B2 |
Technology is described for vacuum electron device (e.g., sheet beam klystron) that includes a hollow tube structure. In one example, the hollow tube structure includes at least three resonant cavities 210 and at least two drift tube sec...
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JP6469742B2 |
A magnetron includes an anode with an anode casing at least partly surrounding the anode. A pair of permanent magnets on each side of the anode define an interaction region and create a magnetic circuit defining a magnetic field through ...
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JP6452533B2 |
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JP6445342B2 |
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JP2018181415A |
To provide a high frequency transmission window body capable of mitigating electric field strength in a high frequency transmission window, while ensuring permeability of high frequency wave.A high frequency transmission window body 18 i...
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JP2018163801A |
To obtain a sufficient effect of arcing countermeasures by simultaneously implementing capture of discharge gas and electron emission suppression.On a surface of an end hat 4 in an end portion of a cathode 1, an electron emission suppres...
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JP2018530895A |
The embodiments of the present disclosure generally present a magnetron configuration that provides more efficient and / or more uniform cooling properties and a method of forming the magnetron. The magnetron includes one or more flow di...
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JP6405287B2 |
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JP6408337B2 |
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JP6401485B2 |
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JP2018156851A |
To miniaturize a collector for an electronic tube.A collector for electronic tube 1 includes: a cylindrical ground electrode 2; and a plurality of collector electrodes 5a and 5b that includes a cylindrical shape, in which an outer periph...
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JP6356992B2 |
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JP6356568B2 |
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JP2018106977A |
To provide a multi-beam klystron capable of making electric field intensity uniform at respective positions that respective electron beams of a nose pass.A multi-beam klystron comprises a cavity 20 to which a port 39 for inputting or out...
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JP6345472B2 |
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JP6343471B2 |
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JP6342173B2 |
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JP6340163B2 |
Electromagnetic wave oscillators each having a multi-tunnel and electromagnetic wave generating apparatuses including the electromagnetic wave oscillators are provided. The electromagnetic wave oscillator includes: a first waveguide (130...
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JP6325345B2 |
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JP6316160B2 |
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JP6300312B2 |
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JP6302290B2 |
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JP6260047B2 |
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JP6252897B2 |
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JP6254793B2 |
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JP6248279B2 |
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