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Matches 1 - 50 out of 10,594

Document Document Title
WO/2019/177835A1
A self-assembling element fabricated using integrated circuit techniques may provide a small diameter helical conductor surrounding an electron beam for the construction of a vacuum electronic device such as a traveling-wave tube for ter...  
WO/2019/172312A1
Provided is a slow-wave circuit and the like that contribute to achieving a wide band while reducing energy loss. The slow-wave circuit is provided with: a waveguide for transmitting electromagnetic waves, the waveguide including a meand...  
WO/2019/169385A1
Vacuum electron devices and linear accelerators include a hollow cathode (510) configured to emit a beam of electrons. An anode (210) is configured to attach and focus the beam of electrons. A control grid (520) is configured to control ...  
WO/2019/158478A1
Circular grid for a cylindrical cathode of a linear-beam microwave tube, said grid comprising an equal number of cells and bars (3), and comprising: - an external circular boulevard (4); - two or three bars (3) that are all connected, at...  
WO/2019/119693A1
A magnetron, comprising a magnetron heat dissipation element used for heat dissipation of the magnetron, the magnetron heat dissipation element comprising a central heat conducting body (1) for coating the outer side wall of an anode cyl...  
WO/2019/094929A1
A plasma ion source includes a plasma chamber body having at least one inlet for introducing a feed gas to an interior of the plasma chamber body. The plasma chamber body is electrically isolated from a vacuum chamber attached to the pla...  
WO/2019/073228A1
A microwave generation system comprising a microwave generator, a pulse generator and an impedance network. The pulse generator is arranged to provide pulses of electrical power to the microwave generator and is operable to vary the powe...  
WO/2019/043942A1
An electromagnetic wave generator (100) is provided with: an oscillator (6) including a conductor plate (1), which has a cavity resonance section (11), and an electron emitter (3), which is disposed facing one surface of the conductor pl...  
WO/2019/041672A1
A coaxial TM10,1,0 mode coupled cavity chain, comprising multiple coupled TM10,1,0 mode coaxial resonant cavities, and drift tubes arranged at radial positions where an axial electric field in the TM10,1,0 mode coaxial resonant cavities ...  
WO/2019/009173A1
A magnetron according to an embodiment comprises a magnetic circuit configured from a permanent magnet (13, 14) and a yoke configured by joining a first yoke (15) and a second yoke (16) together. The first yoke (15) and the second yoke (...  
WO/2018/230018A1
This klystron (10) comprises an electron gun unit (A), a plurality of resonance cavities (14a) to (14j), a collector (15), and a plurality of drift tubes (16a) to (16k). The plurality of resonance cavities (14a) to (14j) include an input...  
WO/2018/174221A1
The purpose of the present invention is to correct an error from a design value due to variations and the like in component dimensional accuracy, assembly accuracy, or permittivity, and to maintain the design value. An RF window is provi...  
WO/2018/151253A1
The objective of the invention is to provide a microwave tube, or the like, wherein gas adsorption action of a getter may be satisfactorily performed independently from a microwave amplification operation. In order to solve this problem,...  
WO/2018/052518A3
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...  
WO/2018/078057A1
The invention relates to an appliance for manufacturing a three-dimensional object by means of selective additive manufacturing, comprising, in a housing: a support for depositing successive layers of additive manufacturing powder; a dis...  
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-...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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 ...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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.  
WO/2013/114351A3
A system for generating pulses of charged particles, comprising a high intensity pulsed laser emitting laser pulses which, when impacting a target, generate pulses of charged particles. The particles passes through an electromagnet energ...  
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...  
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...  
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 ...  
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...  

Matches 1 - 50 out of 10,594