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WO/2018/081243A1 |
A chiral molecule can be defined as a molecule that has a non-superimposable mirror image. These mirror images can be referred to as enantiomers. The enantiomers generally have the same set of bond lengths and bond angles in their three-...
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WO/2018/078056A1 |
The invention relates to an appliance for manufacturing a three-dimensional object by means of additive manufacturing, comprising, in a housing: a support for depositing successive layers of additive manufacturing powder; a distribution ...
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WO/2018/052518A2 |
Technology is described for vacuum electron device (e.g., sheet beam klystron) that includes a hollow tube structure. In one example, the hollow tube structure includes at least three resonant cavities and at least two drift tube section...
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WO/2018/036068A1 |
A carbonized La2O3 and Lu2O3 co-doped Mo cathode material and a preparation method therefor pertain to the technical field of rare earth refractory metal cathode materials. A molybdenum substrate is doped with rare earth active substance...
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WO/2018/007336A1 |
The invention relates to a travelling wave tube (1) comprising an outer metal sheath (5), an inner helix (2), a copper tube (4) disposed between the helix (2) and the sheath (1), and rods (3) disposed between the helix (2) and the copper...
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WO/2017/199272A1 |
The objective of the invention is to provide a low cost magnetron wherein harmonic components may be suppressed effectively. This magnetron comprises a choke (30) that is a separate part from a metal sealing body (7) on an output side. O...
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WO/2017/163524A1 |
The objective of the invention is to effectively suppress a plurality of high harmonic components via a simple configuration. This magnetron (1) comprises: a choke portion (60) suppressing high harmonics, configured from a first choke (3...
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WO/2017/154518A1 |
An antenna part (1) of a magnetron is provided with: an exhaust part (15) having a microwave output end to which is connected an antenna conductor wire (4) drawn out from an anode part (2); and an output side ceramic stem (11) inside of ...
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WO/2017/154987A1 |
The present invention provides a delay circuit for securing a wide range of bandwidths in a folded waveguide. The delay circuit is provided with a folded waveguide and a beam hole. The beam hole is disposed between an end and the center ...
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WO/2017/146473A1 |
A magnetron cooling fin has a flat plate shape in which one or a plurality of corrugated regions are formed in a body of the magnetron cooling fin to improve cooling efficiency thereof. A magnetron cooling fin in which a corrugated regio...
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WO/2017/104680A1 |
Provided are a slow wave circuit and a traveling wave tube suitable for an increase in fineness with regard to processing beam holes, and suitable for higher frequencies. A slow wave circuit (10) includes a meandering waveguide (1) and a...
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WO/2017/092943A1 |
A free electron laser comprising: an electron source, a linear accelerator, an undulator, electron beam optics and a deceleration unit. The electron source is operable to produce a bunched electron beam. The linear accelerator arranged t...
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WO/2017/060189A1 |
The invention relates to an amplifier with multibeam inductive output tube comprising an output cavity (34) and several electron guns (11, 21) each intended to emit an electron beam (12, 22) passing through the output cavity (34), each e...
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WO/2017/051528A1 |
The purpose is to make it possible to autonomously suppress a reduction in an electron beam without providing a means for supervising the electron beam intensity of a monitor or the like. An electron gun, provided with: a heater (12) in ...
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WO/2017/053042A1 |
Embodiments of the present disclosure generally provide magnetron configurations that provide more efficient and/or more uniform cooling characteristics and methods for forming the magnetrons. The magnetron includes one or more flow dire...
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WO/2016/174812A1 |
A magnetron (1) is provided with a positive electrode cylinder (5), a cooling block (10), a fastening member, and a pair of pipe joints (14a, 14b). The fastening member is placed between the pair of pipe joints (14a, 14b) on the cooling ...
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WO/2016/133509A1 |
A cylindrical whispering gallery mode (WGM) waveguide for a gyrotron has a series of surface dimples of increasing amplitude at beat wavelengths of an (m,n) primary mode with other co-propagating high order modes. The WGM waveguide there...
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WO/2016/042192A1 |
The invention relates to a coating deposited on a substrate that can be exposed to the air and to the method for the production thereof by means of simple chemical methods. The invention also relates to the use thereof for the production...
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WO/2016/036127A1 |
The present invention relates to a magnetron that is a component for generating a high frequency output that can be used in fields such as radars, medical equipment, cooking equipment such as microwave ovens, and other equipment employin...
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WO/2016/037075A1 |
A depressed beam collector and an RF source comprising a depressed beam collector. The RF source may include, e.g., a multi-beam klystron, a single beam klystron, or other RF sources having an electron gun. The beam collector collects sp...
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WO/2016/024878A1 |
The present invention relates to a device (1) for the extraction of electrons in field emission systems comprising a cathode (2) as electron source, a dielectric grid layer (3) and a conduction layer (4). The device (1) is in the form...
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WO/2016/002183A1 |
Provided are a traveling wave tube and a high-frequency circuit system such that the product life span of the traveling wave tube operating in multiple modes can be extended while variations in gain and amplification efficiency that acco...
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WO/2015/142414A1 |
A high-power magnetron assembly (200) includes a high-power magnetron and a compact magnetic field generator (101, 201, 601). The high-power magnetron includes a cathode (240) configured to emit electrons in response to receiving a suppl...
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WO/2015/130050A1 |
The present invention relates to a high efficiency hollow cathode and a cathode system applying the same, and comprises: a tube comprising at least two refractory metal parts; a gas providing unit and a gas outlet which are respectively ...
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WO/2015/109927A1 |
A magnetron (100) and a magnetron sputtering device, comprising an inner magnetic pole (120) and an outer magnetic pole (130) with opposite polarities. Both the inner magnetic pole (120) and the outer magnetic pole (130) comprise multipl...
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WO/2015/067467A1 |
A free electron laser comprising: an electron source (21), a linear accelerator (22), an undulator (26), electron beam optics and a deceleration unit (28'). The electron source is operable to produce a bunched electron beam. The linear a...
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WO/2015/029430A1 |
In the present invention, a large strap ring and a small strap ring (11A, 11B) are disposed only on a lower end side, serving as an input side, of a tube axis (m) direction of a plurality of vanes (10A, 10B), and a diameter (Rip) of a pr...
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WO/2015/018925A1 |
The invention relates to a magnetic field generation apparatus (2) for a magnetron (1) comprising a permanent magnet arrangement (4) and a magnetic field conductor device (6). The magnetic field conducting device (6) has a diverting elem...
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WO/2014/064227A1 |
The invention proposes a thermionic cathode (1 ) comprising: - a first emitting block (10) comprising at least one electron emission surface (12) configured to emit electrons in at least one predefined direction and at least one non-emis...
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WO/2014/006779A1 |
Provided is a tungsten alloy part which comprises tungsten and at least two types of components selected from the group consisting of Zr, ZrO2, ZrC and C. This tungsten alloy part contains 0.1-5 wt% of Zr in terms of ZrO2.
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WO/2013/104637A1 |
For a collector for a travelling wave tube and for a travelling wave tube having such a collector, a structure is provided in which at least one first collector stage (AS1) has a magnetic beam focusing and a smaller diameter and at least...
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WO/2013/103100A1 |
The purpose of the invention is to obtain a tungsten alloy having emission characteristics equal to or greater than a tungsten alloy containing thorium, which is a radioactive substance, without using thorium; and to provide a transmissi...
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WO/2013/094185A1 |
In a magnetron, a top hat of a cathode for the magnetron is formed from a metal having a high melting point. In said magnetron: said top hat and an end hat are arranged to face each other in an axial direction, said top hat being joined ...
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WO/2013/084497A1 |
This magnetron (1) is provided with: a positive electrode cylindrical body (112) having a high-frequency output unit (111); a permanent magnet (122) provided to both ends of the positive electrode cylindrical body; and a magnetic yoke (1...
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WO/2013/061063A1 |
A filter (20) for reducing a ripple voltage component of a magnetron power supply comprises a first filter element comprising a first inductor (L1) in series with a power supply circuit for the magnetron (13) and a first capacitor (C1) i...
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WO/2013/045183A1 |
In order to reduce the secondary electron emission in a vacuum electron beam arrangement, in particular a travelling wave tube (TWT), a surface structure with an open-pore surface layer (OS) and a method for producing such a surface stru...
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WO/2013/014109A1 |
The invention relates to a semiconductor device for electron emission in a vacuum, comprising a stack of q n- and p-type semiconductor layers (10, 20, 30, 40, 50), q being a number greater than 2, in the order of N/(P)/N forming a juxtap...
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WO/2012/176293A1 |
A switch element (18) is positioned in such a manner as to be joined to the electromagnetic field of a cavity resonator of a high-frequency oscillator, a bias voltage-applying terminal (14T) is connected to one electrode of the switch el...
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WO/2012/173864A1 |
This disclosure relates to methods and devices for generating electron dense air plasmas at atmospheric pressures. In particular, this disclosure relate to self-contained toroidal air plasmas. Methods and apparatuses have been developed ...
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WO/2012/168695A1 |
A low-pass filter (17) is provided for a heater supply of a magnetron (11) for filtering stray radiation (23) emitted by the magnetron from being emitted by the heater supply means. The filter is arranged for attachment to an exterior fa...
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WO/2012/119786A1 |
The present invention provides an electron gun (12) comprising a cathode (20), for generating electrons; an anode (22); an intermediate electrode (24), located between the cathode and the anode; and a controller (14). The controller appl...
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WO/2012/120903A1 |
This magnetron (10) has an anode cylinder (23), a top shell (31), a cathode cylinder (25) connected to the anode cylinder (23), a first lead wire (26) supported by the cathode cylinder (25), a second lead wire (27) supported by the catho...
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WO/2012/120902A1 |
A magnetron (10) is provided with an anode cylinder (23) in which a plurality of anode vanes (29) are disposed in a radial shape on an inside wall surface, a top shell (31) that is connected to the anode cylinder (23) and houses an anten...
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WO/2012/107763A1 |
An inductive filter 10 for a magnetron power supply lead 20 comprises an electrically insulating tube 105; a power lead 22, 23 located partially within the electrically insulating tube, and substantially coaxial therewith, for supplying ...
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WO/2012/098391A1 |
A magnetron has an anode body (1) and including a ceramic sleeve (7). In higher power generators, stray radiation is emitted from this sleeve in addition to the main power launched from the antenna into the waveguide (2), and RF absorbin...
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WO/2012/087951A2 |
A microwave heater equipped with a microwave choke and suitable for heating one or more articles under vacuum. The microwave choke inhibits leakage of microwave energy between a door of the heater and a main vessel body of the heater wit...
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WO/2012/048473A1 |
A method and a system for temporal focusing and temporal alignment of an ultra-short electron bunch are provided. The method discloses how to realize the temporal compression and temporal alignment of an electron bunch in a cavity struct...
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WO/2012/008580A1 |
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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WO/2011/144918A1 |
A high power electron tube, such as a magnetron, has the disadvantage that, to reduce the chances of the ceramic RF window failing in use, the manufacturing step entails a prolonged ageing period of powering the magnetron at low power on...
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WO/2011/136282A1 |
Disclosed is an end hat for a magnetron, wherein an end hat composed of a Mo sintered compact is integrally connected to a Mo-Ru brazing filler metal. A diffusion region having a thickness of 5 µm or more, wherein Ru extracted from the ...
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