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JPH0384833A |
PURPOSE: To absorb harmful energy entering a collector by tapering the size in the horizontal direction of the collector or coating the downstream end part, preferably a part exceeding a beam shock region of the collector with a resistan...
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JPH0374029A |
PURPOSE: To work for big output and high frequency for facilitating the transmission of a generated electromagnetic wave by providing a specific optical resonator, an electron beam supplying means and an output wave transmission line. CO...
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JPH0367439A |
PURPOSE: To efficiently couple required electromagnetic radiations by rotating an electron beam by a static electromagnetic field, and coupling the electromagnetic radiations from an optical resonator, formed of two mirrors of which at l...
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JPH0320880B2 |
An electron beam device which includes a vacuum enclosure which houses an electron gun for producing an annular beam of helically rotating electrons, an iris-loaded waveguide which is supplied with high frequency power and serves to crea...
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JPH0317340B2 |
A tilt-angle electron gun provides a conical beam of electrons for injection into an axially aligned magnetic field of a gyrotron tube. The beam is formed by an electrostatic lens system for focussing and accelerating the electrons withi...
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JPH0316729B2 |
In a Gyrotron electron tube, oscillating motion perpendicular to the axis of a linear electron beam is produced by a helical component of magnetic field. The length along the beam of the helical field is critically chosen so that electro...
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JPH0337938A |
PURPOSE: To convert kinetic energy of electrons into electromagnetic wave energy efficiently by moving electrons in circle in a resonator with the same frequency as the inherent vibration frequency of the resonator by a magnetic field. C...
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JPH0330243A |
PURPOSE: To obtain a broad band of high frequency radiation by specifying the distance between two mirrors opposed to each other on the axis of a resonator and the mirror-to-mirror distance which is varied. CONSTITUTION: The mirrors 4a, ...
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JPH0330240A |
PURPOSE: To simplify process of working and assembly to eliminate cracks of dielectrics due to difference in thermal expansion ratio by a method wherein conductors and dielectrics are periodically laminated in a pipe to constitute an ele...
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JPH0330242A |
PURPOSE: To make full use of the advantages of a resonator wall using a superconductor so as to enhance the output of a quasi-optical gyrotron by providing the mirrors of a quasi-optical resonator with superconducting reflecting surfaces...
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JPH03500221A |
A plasma wave tube is described in which a pair of counterpropagating electron beams are injected into a waveguide housing in which a plasma is formed, prefeferably by an array of fine wire anodes. The electron beams couple with the plas...
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JPH032549U |
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JPH031770B2 |
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JPH02148551U |
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JPH02299132A |
PURPOSE: To multiply the energy of an electron beam and to increase the number of high-frequency windows used for output combination by providing at least one high power resonator and the other resonator as well, and by freely rotating t...
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JPH02295022A |
PURPOSE: To provide a klystron amplifier tube whose overall length is shortened by increasing a diameter of a drift tube with respect to a diameter of a beam. CONSTITUTION: In a hollow 26, a metallic body part or an envelop covering a be...
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JPH02503970A |
A plasma wave tube and associated operating method are described in which a pair of cold-cathode electron beam generators discharge counterpropagating electron beams into an ionizable gas, preferably hydrogen or a noble gas, within a wav...
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JPH02278632A |
PURPOSE: To establish a high beam transmission ratio by controlling the emission of electrons from a hot cathode with an aux. electron beam. CONSTITUTION: An aux. electron gun 1 installed behind a hot cathode is composed of an electron b...
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JPH02260352A |
PURPOSE: To correct defects of an electron gun caused by its employment of laser pulses to excite its cathode and thus resolve its constraints in performance by substituting a light modulator interposed between its light source and photo...
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JPH02239542A |
PURPOSE: To provide a quasi-optical gyrotron device, which can turn into large output and high frequency, by using a resonator consisting of a ring-shaped mirror and a flat mirror, and using a pencil-shaped revolving electron beam as ele...
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JPH02223135A |
PURPOSE: To optimize the oscillation efficiency without depending on the current control of a magnetic coil and facilitate assembling by supporting one of two mirrors constituting an optical resonator, and providing an expansion wall to ...
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JPH02220333A |
PURPOSE: To ensure improved performance with simplified device design by allowing easy and high-precision alignment of the center axis of a gyrotron oscillator tube and the magnetic axis of a superconducting magnet device without using a...
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JPH0228596Y2 |
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JPH0232734B2 |
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JPH0232733B2 |
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JPH02174040A |
PURPOSE: To make a DC power source unnecessary and prevent the heating by a resistance loss by constituting the collector coil of the gyrotron tube of a gyrotron device with a superconductor. CONSTITUTION: A superconductor made of a ring...
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JPH0228220B2 |
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JPH0227773B2 |
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JPH02151267A |
PURPOSE: To prevent a power supply operation from becoming unstable by superposing first and third outputs, superposing second and fourth outputs, and supplying them to two loads. CONSTITUTION: Power supplies 2 and 3 are composed of a tr...
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JPH0267896U |
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JPH0222499B2 |
In a traveling wave tube (TWT) with a non-dispersive interaction circuit such as a helix, the length of the circuit in wavelengths, and hence the gain of the tube, varies with the frequency. The variations of gain over a very wide bandwi...
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JPH02123637A |
PURPOSE: To absorb and dampen an electromagnetic wave leaking from the gap of a waveguide separation part with an electric wave absorbing body and preventing the electromagnetic wave from reaching an exhaust pump by providing the electri...
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JPH0219577B2 |
An electron beam tube is described, having a flat cathode and a flat, close-spaced grid to density modulate the beam. The beam passes through an apertured anode and then through a hollow drift tube which is the central conductor of a coa...
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JPH0216533B2 |
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JPH0244885U |
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JPH0279330A |
PURPOSE: To provide a high-efficiency frequency multiplier for high-frequency by setting an intermediate floating cavity to resonate at a frequency just above an input signal and also less than or equal to a high frequency. CONSTITUTION:...
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JPH0265032A |
PURPOSE: To make it possible to control so that the oscillation characteristic of a competing mode is suppressed and that the oscillation of a main mode is generated in a stabilized manner by changing reflection phase from a resonance ca...
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JPH0249333A |
PURPOSE: To enable operation on a large electric power in a high frequency band by mechanically integrating the center parts of two dielectric plates constituting a double window. CONSTITUTION: A small projection part 38 is formed on one...
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JPH027140B2 |
Two coupled cavity type, slow-wave circuits are separated, with a drift space section between them. An electron beam and an electromagnetic wave, which do not interact with each other, over a certain length, are in the drift space. A wav...
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JPH029202A |
PURPOSE: To reduce the cost of a converter and to extend a pass band by forming the converter by a rectangular waveguide to be driven by a reference mode, a circular waveguide for transmittting a TM01 mode and a group of intermediate wav...
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JPH01180775U |
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JPH0155746B2 |
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JPH01281640A |
PURPOSE: To restrict the change of working frequency due to temperature by forming an anode mainbody out of a first material and vanes out of a second material and making different the coefficient of thermal expansion of the first materi...
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JPH01235129A |
PURPOSE: To expand oscillatable frequencies by operating a power source feeding the power to an electron gun so that the ratio between the voltage across a cathode and a control electrode and the voltage across the control electrode and ...
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JPH01187736A |
PURPOSE: To enable the predetermined gap size of a waveguide separation part to be set with high accuracy in a completion stage by hermetically sealing the waveguide separation part with a sealing ring having flexible parts and connectin...
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JPH01186735A |
PURPOSE: To prevent the overheat of a cathode via the attenuation of an electromagnetic wave power incident on MIG and enable long pulse and continuous operations by loading a beam tunnel with a circular waveguide made of a cylinder of g...
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JPH0126143B2 |
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JPH01120737A |
PURPOSE:To realize a microwave tube utilizing the cyclotron motion of electrons by forming an operating space surrounded by a vane at the center of an anode cylinder and providing a cathode section with an outer shape larger than the inn...
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JPH0124341B2 |
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JPH0123897B2 |
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