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JPH0119224B2 |
A variable pitch delay line for a travelling wave tube, is constituted by cells constructed in waveguide sections in which takes place the propagation of the electromagnetic waves which are used in the operation of the tube. All the cell...
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JPS6486430A |
PURPOSE: To make the promotion of high output or long hour in an oscillator performable easily and economically by using a liquid nitrogen cooling superconductive coil for a field generating coil of a high-frequency source, requiring a h...
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JPS6448853U |
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JPH0115981B2 |
An electron tube comprises an evacuated envelope including an anode forming a section of the envelope and a plurality of alternatively-disposed metallic and insulating annular members. The anode includes an anode ring having a plurality ...
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JPS6435832A |
PURPOSE: To improve the stability of operation by making the electric field strength of the drift space of a circuit separator different from the electric field strength in the interaction space region of a low-speed wave circuit by at l...
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JPS6427142A |
PURPOSE: To emit electromagnetic waves oscillated in a resonator to outside thereof effectively by furnishing a straight string of slots at either or both of the two mirrors constituting an optical resonator. CONSTITUTION: A resonator 2 ...
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JPS6420702A |
PURPOSE: To tune a resonance frequency over a wide frequency band by changing an interaction frequency of a delay line stepwise with a cavity resonance frequency. CONSTITUTION: An inductor L1 is formed by an area formed by walls 11, 12 o...
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JPS6419649A |
PURPOSE: To make it possible to obtain a gyrotron capable of large power and high frequency oscillation by making a cylindrical resonant cavity in the constitution where ring-shaped superconductive line materials are arranged in the laye...
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JPS6362859B2 |
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JPS63246906A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6351403B2 |
The disclosure relates to a light modulated electron beam driven radiofrequency emitter. Pulses of light impinge on a photoemissive device which generates an electron beam having the pulse characteristics of the light. The electron beam ...
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JPS63245844A |
PURPOSE: To obtain high-frequency large power by replacing a conventional hollow resonator by a solid coaxial resonator as a resonator in which electron beam energy is converted into electromagnetic wave energy. CONSTITUTION: A resonator...
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JPS6348380B2 |
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JPS6341181B2 |
An improved slow wave circuit especially useful in backward wave oscillators includes a slow wave circuit (10) in a waveguide (12) as shown in Fig. 1. The slow wave circuit is comprised of rings (11) disposed between and attaches to resp...
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JPS63181239A |
PURPOSE: To stabilize the oscillation of a magnetron by specifying the distribution of the electron current emitted from the cathode surface of an inter-digital type magnetron and specifying a thermal electron emitting film. CONSTITUTION...
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JPS6326881Y2 |
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JPS6336103B2 |
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JPS63131440A |
PURPOSE: To steadily generate a high-power electromagnetic beam with high efficiency by providing cooling agent passages among slots so that a mirror with a train of slots can be uniformly cooled. CONSTITUTION: Since a mirror 9 generates...
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JPS63128523A |
PURPOSE: To obtain an electromagnetic wave beam having a high efficiency and a large output without oscillation of the electromagnetic wave of an unnecessary mode on the inside of a resonator by providing an annulus ring spacer or a wall...
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JPS63128521A |
PURPOSE: To make heating of plasma etc., with an electromagnetic wave beam of a large output generated by making a differential exhaust of a gyrotron device with an orifice provided on the inside of a transmission part and a vacuum exhau...
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JPS63128522A |
PURPOSE: To make an adjustment between a magnetic axis of a superconducting magnet and a gyrotron oscillating tube axis without using a corrective magnetic field coil by provoding a mechanism adjusting an insert angle of the gyrotron osc...
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JPS63128524A |
PURPOSE: To prevent a local heating of an insulation oil and a deterioration of the insulation oil or a damage of the cryostat by tilting the under surface of the cryostat so as to project an ordinary temperature space side for inserting...
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JPS63126142A |
PURPOSE: To prevent deterioration of an insulating oil heated by an electron gun of a gyrotron oscillating tube so as to enable long time operation by providing a cooling plate able to let a cooling medium flow to a socket. CONSTITUTION:...
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JPS63121233A |
PURPOSE: To obtain a self-actuated rotor via the repulsion of lines of magnetic force and make a commutator and a brush unnecessary when utilizing a spherical magnetron electron cell as the rotor by fitting the disk-shaped rotor in the m...
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JPS6319064B2 |
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JPS6377378A |
A power supply for helix and collector electrodes of a traveling wave tube is driven by an AC power source having a frequency of at least 500 KHz. The helix supply includes plural, stacked voltage doubler AC to DC modules responsive to t...
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JPS6311632B2 |
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JPS6334838A |
PURPOSE: To eliminate the trouble of the electromagnetic wave reflection and to obtain an oscillation property of a designed value, by making one of two dielectrics comprising the window for a gyrotron tube transferrable. CONSTITUTION: A...
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JPS6332834A |
PURPOSE: To prevent positive ions generated in a collector from flowing in a MIG and an output window so that long-pulse and continuous operations can be performed, by interposing insulated metallic cylindrical electrodes between a high-...
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JPS6332833A |
PURPOSE: To suppress discharge breakdown between an control electrode and a body in a gyrotron oscillating tube, by connecting an output of a potentiometer with an inductor and by connecting an output of the inductor with the control ele...
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JPS6326371A |
PURPOSE: To easily obtain a tubular member having superior heat conductivity by placing a heating element in a tube and forming diamond on the inner surface of the tube by the thermal decomposition of a reactive gas. CONSTITUTION: A heat...
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JPS634309B2 |
Oscillations due to backward waves in a high-power traveling-wave tube (TWT) are inhibited by a non-reciprocal attenuating device which essentially absorbs only backward waves. A directional coupler mediates the exchange of energy betwee...
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JPS6312146U |
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JPS6313235A |
PURPOSE: To lessen an amount of shift of an antenna lead, by forming a flat part beforehand on a part of antenna lead around which a metal exhaust pipe is fitted, and squashing the pipe for vacuum sealing and cutting in the lateral direc...
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JPS6313236A |
PURPOSE: To decrease leakage of millimeter wave, by providing the plural number of micro gaps on the wall of a transmission circuit located between a high frequency resonance circuit and an output window, in a direction of crossing a tub...
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JPS636726A |
PURPOSE: To attenuate microwave components coming back as electromagnetic waves to prevent a needless oscillation and perform stable amplifying operation, by forming a circuit separator surface facing to a cathode with a material having ...
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JPS636725A |
PURPOSE: To suppress electron beams' impacts on an output window so as to improve reliability, by interposing a circular waveguide bend between the collector part and the output window part so that the output window part is not viewed fr...
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JPS62295335A |
PURPOSE: To make it possible to restrict the electromagnetic energy leaking to a reflection electrode base side even in a high oscillation frequency, by installing at the reflection electrode a flange with a potential same as that of the...
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JPS62290040A |
PURPOSE: To enable electromagnetic wave beams of high frequency and high output power applicable to plasma heating of a nuclear fusion apparatus, to be generated to be generated efficiency by providing a magnetic field changing means in ...
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JPS62290041A |
PURPOSE: To enable electromagnetic wave beams of high frequency and high output power applicable to plasma heating of a nuclear fusion apparatus, to be generated nat a high efficiency by changing the width of radial slots along the slots...
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JPS62278732A |
PURPOSE: To obtain good high-frequency output power low in a mode mixture rate of out-put, by setting up a sweep coil on the circumference of a collector part, between a main coil an output aperture side cancel coil within the repercussi...
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JPS62276734A |
PURPOSE: To enable accurate measurement of respective current and voltage values of a microwave oscillator, and effective protection of the microwave oscillator from abnormal condition by providing a means to isolate the casing of the mi...
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JPS62272423A |
PURPOSE: To miniaturize a magnetron by arranging dielectric substances between vanes or interdigital type combs. CONSTITUTION: Plural vanes 12 are provided inside an anode 11 and a cathode is arranged in the center shaft. Then, dielectri...
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JPS6256621B2 |
In the electron path of the klystron tube assembly (20), a magnetic flux is formed by the magnetic coil assembly (21). To diverge the magnetic flux, a magnetic member (51) is provided on the outer periphery of the drift tube (37) located...
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JPS62262343A |
PURPOSE: To reduce the evaporation amount of the liquid helium and to improve the efficiency, by furnishing at least either a heat insulating material layer or a heat insulating space layer at the inner wall of a cryostat, in the device ...
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JPS6254229B2 |
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JPS62241239A |
PURPOSE: To reduce the generation of unrequired microwaves by setting the magnetic field intensity in a space region demarcated by a circuit separator and the cathode surface facing said separator below 90% of the magnetic field intensit...
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JPS62229639A |
PURPOSE: To improve conversion efficiency and stabilize oscillation frequency by equipping a device extracting unnecessary microwave energy contained in the feedback electron current out of a cross electromagnetic field amplifier tube CF...
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JPS62158745U |
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JPS62226539A |
PURPOSE: To suppress the absoption of a π mode of a wave absorber, by metalizing the ceramic wave absorber on a contact surface with a pole piece, while also metalizing a partial range of the surface at the interaction space side. CONST...
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