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JP5842197B2 |
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JP5835822B1 |
To provide a traveling wave tube and a high frequency circuit system capable of suppressing fluctuations in gain and amplification efficiency due to switching of operation modes while extending the product life of the traveling wave tube...
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JP2015225818A |
To provide an electron gun structure capable of reducing a stress applied to a lead of a heater and increasing the intensity and reliability of a junction part.An electron gun structure according to an embodiment comprises: a cathode whi...
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JP5830816B2 |
The transition has a tubular body (78) whose end (90) in a shape of a cylindrical tube including a conical internal propagation surface (130) and another end (80) in a shape of a rectangular tube including a large side (84), another larg...
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JP5830721B2 |
To provide a radio frequency heating apparatus for driving a magnetron, which can detect abnormality as a dark current increase due to a magnetron vacuum degree deterioration and cathode inclination, generated by baking or long-term dete...
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JP2015216006A |
To provide a negative electrode of magnetron capable of emitting electrons with efficiency significantly more excellent than before without using a radioactive material.The negative electrode of magnetron includes a C12A7 electride compo...
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JP5814236B2 |
Disclosed is an end hat for magnetrons which is constituted of sintered Mo, characterized in that the surface area ranging from the surface of the sintered Mo to a depth of 100 µm therefrom has a carbon content of 30 ppm or less and the...
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JP5814228B2 |
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JP5814599B2 |
A magnetron includes a cathode and a vacuum envelope in which the cathode extends. The vacuum envelope includes a portion extending radially relative to the axis of the cathode. A pair of electrically conducting support arms for supporti...
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JP5805842B1 |
To provide a magnetron which realizes high efficiency and improvement of load stability while suppressing cost. The ratio (EHg / Vh) of the vane height Vh to the end hat interval EHg satisfies the condition of 1.12 EHg / Vh 1.26, and the...
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JP5796069B2 |
The switching element is provided in a state of being electromagnetically coupled to the cavity resonator of the high frequency oscillator; the bias voltage applying terminal is connected to one electrode of the switching element; anothe...
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JP5786145B2 |
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JP5772662B2 |
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JP5743654B2 |
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JP2015118895A |
To provide a magnetron capable of reducing the size of an end hat while ensuring bonding strength between a negative electrode and the end hat.A magnetron 1 has a negative electrode 3 which is arranged so that the pitch at an input-side ...
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JP5723379B2 |
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JP5723126B2 |
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JP5711014B2 |
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JP2015065111A |
To provide a magnetron 1 having plural vanes 13 of a single type which are disposed in an anode 10 in an identical orientation with respect to a direction of a tube axis TA1 to simplify a vane disposition step to thereby improve the prod...
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JP2015065115A |
To suppress unnecessary noise from being generated in a magnetron 1 as a center rod 30 deforms to cause a cathode 32 to shift in position.A magnetron 1 is provided with: an anode part 5 having a cylindrical anode 10 and a plurality of va...
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JP5688874B2 |
An electron beam focusing electrode and an electron gun using the same may include a plate having a polygonal through-hole; at least a projecting portion formed on at least one side of the through-hole. By using the electron beam focusin...
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JP2015056348A |
To improve the dimensional accuracy of an envelope with a loading element in a helix type traveling-wave tube.A helix type traveling-wave tube comprises a cylindrical envelope 8, an electron gun mounted at one end of the envelope 8 and r...
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JP2015049943A |
To provide a microwave heating apparatus capable of downsizing a waveguide for transmitting a 915 MHz microwave and downsizing the microwave heating apparatus itself including the waveguide.A microwave heating apparatus 1 includes a meta...
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JP5676899B2 |
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JP5675596B2 |
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JP5676980B2 |
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JP5656270B1 |
To provide a power supply device capable of stopping power supply to an electron tube and a control method thereof while reducing damage to a helix even if the configuration does not control supply and stop of supply of anode voltage. A ...
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JP5647536B2 |
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JP5615350B2 |
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JP5611589B2 |
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JP2014197471A |
To provide a multi-band compatible electron tube.The electron tube includes: a shell containing a helix; and a plurality of columns that support and fix the helix in the shell, in which a conductive material is disposed at a portion cont...
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JP2014191961A |
To enhance manufacturability of a pole piece.A magnetron includes a positive electrode cylinder 1, a vane 2, a negative electrode 5 and pole pieces 8, 9. The positive electrode cylinder 1 has both open ends. The vane 2 is in contact with...
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JP5595667B2 |
A magnetron has a first set of vanes 30 etc which connect by legs 52 to a coaxial output coupler 51 and a second set of vanes 19 etc which (in one embodiment) alternate with the vanes of the first set and are not connected to the output ...
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JP2014176093A |
To provide a light-weight traveling-wave tube for a communication satellite, having a high cost effect.A method for operating a traveling-wave tube module (20) for a communication satellite (10) includes the steps of: receiving a high fr...
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JP2014158264A |
To provide a control device (2) for an extraterrestrial platform, an extraterrestrial platform such as, for example, an artificial satellite with the control device, and a method for setting an operating point of a high-frequency transmi...
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JP5572795B2 |
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JP5562577B2 |
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JP2014135161A |
To provide a highly reliable magnetron having a stabilized output characteristics in which an antenna cap does not fall off from an exhaust pipe even under a heat cycle due to repetition of on/off of a magnetron.After press fitting an an...
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JP5497496B2 |
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JP2014089908A |
To increase the strength in an axial direction of an antenna to prevent a position of the antenna from being deformed when chipping-off an exhaust pipe.The magnetron having a core tube 10 with an antenna cylinder includes: plural vanes 2...
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JP2014075262A |
To solve problems in a conventional magnetron in which a power supply line from the outside of a magnetron generally forms a choke coil as a part of a filter circuit, and a negative electrode side and the power supply line from the outsi...
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JP2014072047A |
To enable measurement of a temperature of an anode part of a magnetron with high accuracy and high heat responsiveness.Grooves 82 extending in an axial direction are formed on an outer periphery of an anode cylinder 1 of a magnetron. A f...
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JP2014072161A |
To prevent a permanent magnet from being dislocated, when press-fitting and joining a shield plate to a side tube constituting a high frequency output section, without complicating a structure and an assembly method, to suppress deformat...
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JP2014067615A |
To enable a magnetron of a 915-MHz band to have substantially the same external dimension and substantially the same output as a magnetron of a 2450-MHz band having a smaller size, to reduce costs of a power supply, and to enhance the re...
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JP2014063631A |
To improve the output stability during operation.A magnetron comprises a cylindrical positive electrode 1, a negative electrode 5 extending along its axis, pole pieces 8, 9 located at the opening at the end of the positive electrode 1, m...
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JP5450059B2 |
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JP5425577B2 |
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JP5424478B2 |
An object of the invention is to improve cooling efficiency of a magnetron by forming a region where cooling fins are sparse and a region where cooling fins are dense when the cooling fins are viewed in a flowing direction of a cooling m...
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JP5415130B2 |
A magnetron has an anode 3 surrounding a tubular hollow cathode 4 which contains a heater 9. The cathode is supported by radial arms at each end. At one end of the cathode, the heater is supplied with one terminal of its D.C. supply by m...
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JP5415119B2 |
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