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JP4301700B2 |
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JP4295215B2 |
A field emission cold cathode (11) for use in vacuum tubes. A carbon velvet material (25) is comprised of high aspect ratio carbon fibers embedded perpendicular to a base material. The tips and/or the shafts of the carbon velvet material...
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JP4286406B2 |
A cathode for a magnetron having concave/convex portions on a surface of a cylindrical base metal with thermionic emitting materials being fixedly attached to concave portions from among the concave/convex portions. The convex portions o...
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JP4286960B2 |
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JP4267049B2 |
A magnetron has a cylindrical cathode portion, an anode portion surrounding the cathode portion concentrically, and a resonator circuit connected to the anode portion. Fine modifying portions are periodically formed on the anode portion ...
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JP4263896B2 |
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JP2009081018A |
To cut off an amount of use of materials without degrading load stability of a magnetron.To a vane 2 of the magnetron provided with an anode cylinder 1 extended in a cylinder shape along a center axis 30, a spiral cathode 5 arranged at t...
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JP2009076242A |
To provide a magnetron in which, while maintaining a heat resistance and a vacuum holding performance inside a magnetron, choosing options of end hat materials are increased.A pair of end hats 6, 7 fixed on both ends of a cathode 5 of th...
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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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JP4250397B2 |
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JP4243494B2 |
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JP4238462B2 |
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JP4233421B2 |
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JP4224264B2 |
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JP4212514B2 |
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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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JP4199521B2 |
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JP4192049B2 |
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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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JP4177927B2 |
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JP4169874B2 |
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JP2008251201A |
To provide a highly reliable product by suppressing the unnecessary radiation and leakage of the microwave energy of a fundamental wave to a power supply side from a magnetron input side which arise from a product variation, and a prefer...
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JP4154064B2 |
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JP4134000B2 |
A disk-shaped cathode pellet is installed and secured by a retainer onto a heater cap that incorporates a heater. The part of this retainer that covers the periphery of the electron emission surface of the cathode pellet functions as a p...
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JP4122100B2 |
PURPOSE: A cathode member for a magnetron and a magnetron apparatus using thereof are provided to increase the welding intensity with a simplified structure of the magnetron. CONSTITUTION: A cathode member for a magnetron includes an end...
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JP4117125B2 |
An insulator (6) comprising a slit (9) is adhered on an outer peripheral portion of a collector core (4). A radiator (7) is adhered on the outer peripheral portion of the insulator and has a slit (10) in a portion corresponding to the in...
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JP4115618B2 |
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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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JP2008108581A |
To provide a magnetron capable of increasing exhaust conductance without degrading maximum magnetic field intensity nor causing leakage of higher harmonics.This magnetron is provided with: a cylindrical positive electrode tubular body 10...
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JP2008108540A |
To obtain a magnetron capable of sufficiently exhibiting a getter effect even if input power is decreased to an extent for reducing reduce noise or an electron emitting area of a filament coil is decreased.A portion 122Aa which contacts ...
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JP2008098082A |
To solve a problem that, in a magnetron power source device, when an inverter type to send power by high frequency is adopted, constant current control cannot be made if a choke coil is incorporated in a circuit, and it becomes unstable ...
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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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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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JP4064628B2 |
In accordance with the present invention, there is provided a method of profiling a total vector potential field of a periodic permanent magnetic field structure, wherein desired elements of the total vector potential field are known. Th...
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JP2008061332A |
To provide a power supply further reducing size and costs, and to provide a high-frequency circuit system having the power supply.There are provided: a transformer; a primary power supply for supplying an AC voltage having at least two f...
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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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JP2008053129A |
To provide a waterproof device for attachment of liquid-cooled magnetron, capable of mounting a liquid-cooled magnetron on the upper surface of a waveguide launcher easy to mount while interrupting water flowing from the liquid-cooled ma...
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JP2008010352A |
To aim at stabilization of output characteristics of a magnetron by firmly fixing its antenna cap to an exhaust tube.A shape of an open end face of the antenna cap 131 covering a whole of the exhaust tube 10 of the magnetron is elliptica...
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JP2008004463A |
To suppress an arbitrary harmonic component by a choke of the same size, in a magnetron equipped with a harmonic suppressing choke.This magnetron 100 is provided with: a high frequency wave generation part 200 generating high frequency w...
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JP2007537868A |
An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages with final or rear-most electrodes of one stage maintained at substantially the same instantaneous voltage as the imme...
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JP4019431B2 |
PCT No. PCT/FR96/00644 Sec. 371 Date Nov. 5, 1997 Sec. 102(e) Date Nov. 5, 1997 PCT Filed Apr. 26, 1996 PCT Pub. No. WO96/35219 PCT Pub. Date Nov. 7, 1996The present invention relates to an electron gun having a grid and a cathode with t...
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JP2007318306A |
To provide a microwave oscillation device which has simple and compact constitution and can be constituted as a portable type. The current from a capacitor group 10 generating a DC voltage is supplied to an inductor 20 via a switch 11, a...
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JP4016715B2 |
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JP2007311293A |
To provide high reliability for a protective device, to improve workability in assembly, and to prevent trouble such as disconnection of a lead wire in assembly from occurring, in relation to a structure for detecting the temperature of ...
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JP2007305438A |
To provide a method of manufacturing carbonate crystal of needle shape longer than before and to provide an oxide cathode using the carbonate crystal, and its manufacturing method. Carbon dioxide is made to flow into water solution of ni...
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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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JP2007294148A |
To provide an electron gun for traveling-wave tubes capable of precisely measuring the inclination/axial deviation between a cathode and an anode by facilitating the identification of each part in X-ray investigation. The electron gun fo...
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JP4004850B2 |
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