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JP2000173485A |
To make an anode cavity resonator small and light-weight to reduce production cost by changing the shape of a plurality of vanes, and provide a magnetron anode cavity resonator capable of decreasing characteristic drift.A magnetron anode...
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JP3004617B2 |
An electron gun provides multiple convergent beamlets in a rectilinear flow for use in multiple drift tubes of a multiple beam klystron. The electron gun comprises a cathode having a concave emitting surface and an anode having a concave...
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JPH11329264A |
To provide an inductive output amplifier with low impedance in a grid-anode interacting area. This amplifying device has a cathode and an anode arranged with a space from the cathode. Control grids for modulating an electron beam, in res...
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JP2964611B2 |
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JP2957156B2 |
A magnetron includes a positive polar section having a positive polar cylinder, a plurality of vanes arranged at equal distance to radially protrude from an inner wall to a predetermined radius of the positive polar cylinder and plural s...
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JP2951420B2 |
The present invention relates to a microwave tube with n longitudinal electron beams (2) parallel to an axis XX' (n an integer greater than one). It includes at least one outlet cavity (40) crossed by the n electron beams (2) and a colle...
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JPH11219663A |
To provide an anode structure for a magnetron, which is of a comparatively compact and lightweight construction while it can operate with a comparatively low frequency. An anode structure for a magnetron is equipped with T-shaped anode v...
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JPH11204048A |
To provide a cathode structure microwave electron tube having stable service life properties. This cathode structure comprises a cathode substrate 11 containing an electron radiating substance, a supporting cylinder 12 made of a high mel...
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JPH11162366A |
To provide the smooth and stabilized output operation without generating an excessive current in a body power source when fluctuation of the output voltage is generated in a collector power source at the time of starting stopping the out...
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JP2904308B2 |
In a gyrotron comprising a cathode with an emitter ring, an accelerating anode, a resonator, a collector, and an uncoupling conduit, an arrangement is disposed around the resonator which generates a solenoidal static axial magnetic const...
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JP2905748B2 |
An improved magnetron which is capable of elongating the life span of the magnetron, reducing the fabrication cost, and enhancing the performance of the system without using a filament in the conventional art, which includes a center lea...
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JP2904555B2 |
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JP2902030B2 |
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JP2895083B2 |
According to the invention, the conducting collector wall (23) on which the electrons are collected is surrounded by a coil winding (36) which is supplied with a periodically varying current, creating a slightly divergent axial magnetic ...
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JPH11135029A |
To provide a gyrotron having the extremely improved frequency band characteristic of an output window, and wherein a temperature rise and thermal stress resulting from a high frequency loss are suppressed. This gyrotron comprises an elec...
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JPH11135028A |
To provide a gyrotron that simply, safely, and accurately removes an undesired electromagnetic wave, and secures stable and high efficient operation. This gyrotron comprises an electron gun portion generating a hollow electron beam, a ta...
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JP2892151B2 |
There is provided a gyrotron including a quasi-optical mode converter wherein a solid dielectric layer such as silicon carbide for absorbing unnecessary millimeter waves generated by diffraction of the quasi-optical mode converter is arr...
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JP3057039U |
[Task] The size of the plating region can be adjusted to realize a uniform film thickness distribution, and metal particles are effectively removed to improve the quality of the plating film. Equipped with a diffusion coil and a converge...
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JP2592411Y2 |
In a magnetron for a microwave oven comprising a plurality of vanes as an anode and an antenna feeder mounted to the vanes, an antenna feeder fixing device comprising a plurality of radially spaced grooves formed at the upper surface of ...
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JPH1167112A |
To provide a gyrotron control device which installs a body power supply, an anode power supply, etc., independently and controls them individually through various operation modes, to modulate without the energy change of a high-frequency...
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JP2867111B2 |
An anode structure of the present invention provides radially disposed first vanes and radially disposed second vanes interdigitating with the first vanes. The first vanes and the second vanes are each interconnected by a first strap and...
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JP2863310B2 |
PCT No. PCT/FR90/00112 Sec. 371 Date Oct. 17, 1990 Sec. 102(e) Date Oct. 17, 1990 PCT Filed Feb. 16, 1990 PCT Pub. No. WO90/09675 PCT Pub. Date Aug. 23, 1990.A microwave generator that uses an electron beam and the phenomenon of the osci...
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JPH1154261A |
To provide a microwave energy generator of a simple structure, having a voltage-converting means. This device comprises a heating unit 110, a cathode 120 for emitting discharging electrons, a first grid 130 for controlling and focusing t...
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JP2859812B2 |
A microwave oven has a cooking chamber and a microwave generator for supplying microwaves to the cooking chamber. The microwave generator is in the form of a klystron which produces a plurality of electron beams for amplifying microwaves.
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JP2859793B2 |
An electron beam focusing system is provided within a microwave amplification tube formed from a plurality of magnetic polepieces interposed by non-magnetic spacers. The tube has an axially disposed beam tunnel which permits projection o...
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JP2859868B2 |
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JP2857583B2 |
A vacuum tube for handling an r.f. signal having a predetermined frequency range comprises a linear electron beam emitting cathode (136), a heater (166) and a non-electron emissive current modulating grid (138). The grid (138) is positio...
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JPH1116506A |
To stably perform operation by reducing electrostatic capacity, between a body part and a superconductive magnet, making constant-voltage control for a body power source difficult. This gyrotron device is equipped with an electron gun pa...
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JP2812846B2 |
This invention relates to a radiation fin structure of a magnetron and a magnetron which includes such a structure. The fin structure is capable of effectively radiating heat at a high temperature produced during oscillation of the magne...
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JPH10260081A |
To shorten a response time for measurement of temperature so as to effectively protect a magnetron by fixing a temperature sensor to a supporting member, and mounting the supporting member to a cooling fin so as to measure the temperatur...
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JP2804157B2 |
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JP2792347B2 |
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JPH10208650A |
To provide the installing structure of a window member for high frequency wave which can efficiently output high frequency electromagnetic waves, and can prevent the peeling from a waveguide and the generation of cracks and splits. In th...
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JP2777093B2 |
A magnetron assembly for a microwave oven has a choke coil electrically connected to the microwave generating circuit for suppressing high frequency leakage. An element connected between the circuit and the choke coil has a slit formed t...
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JP2773765B2 |
PURPOSE: To suppress the generation of the third harmonic wave by applying a specific AC voltage to a cathode filament, and adjusting the axial inclination of a cathode so that the average value of the dark current becomes a specific val...
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JP2767079B2 |
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JP2570168Y2 |
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JP2740793B2 |
A magnetron comprises an anode (1) and, coaxially mounted inside it, a cathode consisting of a rod (2) with elements located on its surface and providing for primary and secondary emission. The element providing for primary emission cons...
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JPH1055765A |
To miniaturize an energizing power source and reduce power consumption by providing a permanent magnet and an electromagnet that generates a magnetic field required for oscillation operation of a gyrotron. An axial magnetic field is meas...
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JPH1050225A |
To enable fine adjustment of a mutual distance and inclination of transmission mirrors from outside of a vacuum chamber by employing mirror adjustment means. Transmission mirrors 6 and 7 made to stand alone from a base support point 20 w...
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JPH10501921A |
An inductive output tube, e.g., a KLYSTRODE, or a klystron, has a substantially hollow electron beam traversing a resonant cavity excited to the TM0x0 mode, where x is greater than 1.
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JP2562775Y2 |
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JP2561406Y2 |
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JP2690926B2 |
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JPH09326235A |
To provide large heat radiating capacity for anode blades, and reduce the possibility of generating arc discharge in the magnetron shortening the service life of a magnetron by reducing an anode blade recessed part into which an output p...
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JP2686395B2 |
PURPOSE: To prevent the peeling off phenomenon of cooling fluid generating especially in the rear part of an anode which is a heat source, and thermal deformation of the anode caused by peeling off, in a magnetron cooling device used in ...
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JPH09312136A |
To provide a gyrotron capable of easily controlling electron beams as required. This gyrotron is constituted so that electron beams are emitted from an annular emission belt part 2 provided on a cathode 1 and the electron beams are accel...
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JP2555656Y2 |
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JP2654277B2 |
PURPOSE: To obtain a directional coupler for millimeter wave transmission which eliminates the rotation mechanism of a sub-waveguide and monitors the electric power at any time. CONSTITUTION: Rectangular waveguides 7a, 7b being sub-waveg...
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JPH09237582A |
To provide a high-reliability gyrotron device reducing the current fed to an adjusting electromagnet and easily discharging the generated heat by providing an axial position adjusting mechanism capable of adjusting the axial position of ...
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