公开(公告)号：US09105434B2

公开(公告)日：2015-08-11

申请号：US13100427

申请日：2011-05-04

申请人： Robert A. Schill, Jr.

发明人： Robert A. Schill, Jr.

IPC分类号： H01J9/02 ,  H01J25/00

CPC分类号： H01J25/00

摘要： Methods and systems for electron emission are disclosed. An example system can comprise a cup-rod-needle assembly that can collect a source of electrons and allow internal space charge build-up and generation of an internal self-electric field build-up. The system can provide self-emission at a predetermined location of the needle in the system. An example system can comprise a cup-rod-needle assembly, an annular dielectric insulator as a plug, a source of electrons to provide electrons into a cup, and a beam drift tube.

摘要翻译： 公开了用于电子发射的方法和系统。 示例性系统可以包括能够收集电子源并允许内部空间电荷积聚和产生内部自电场积聚的杯 - 杆 - 针组件。 系统可以在系统中的针的预定位置处提供自发射。 示例性系统可以包括杯杆 - 针组件，作为塞子的环形绝缘体绝缘体，将电子提供到杯中的电子源和束漂移管。

公开(公告)号：US08237608B2

公开(公告)日：2012-08-07

申请号：US12510364

申请日：2009-07-28

申请人： Tetsuya Takashima

发明人： Tetsuya Takashima

IPC分类号： H01J25/50 ,  G01S13/02 ,  G01S7/02 ,  H01J25/00 ,  G01S13/00 ,  G01S7/00

CPC分类号： G01S7/03 ,  H01J25/587

摘要： This disclosure is related to a magnetron including a cylindrical cathode having a center axis, an anode coaxially arranged with the cathode so as to be separated from the cathode via a predetermined space, and a pair of pole pieces provided to both ends of the cathode in the axial direction so as to oppose to each other and having opposing faces perpendicular to the axial direction. The pole piece has a first ridge of a ring shape that is formed on the opposing face and is coaxial with the cathode.

摘要翻译： 本公开涉及一种磁控管，其包括具有中心轴的圆柱形阴极，与阴极同轴布置的阳极，以便经由预定空间与阴极分离;以及一对极片，设置在阴极的两端 轴向彼此相对并具有与轴向垂直的相对面。 极片具有形成在相对面上且与阴极同轴的环形的第一脊。

公开(公告)号：US08018158B2

公开(公告)日：2011-09-13

申请号：US12106171

申请日：2008-04-18

申请人： Richard Donald Kowalczyk ,  Mark Frederick Kirshner ,  Craig Bisset Wilsen ,  Chad Daniel Marchewka

发明人： Richard Donald Kowalczyk ,  Mark Frederick Kirshner ,  Craig Bisset Wilsen ,  Chad Daniel Marchewka

IPC分类号： H01J25/00

CPC分类号： H01J25/025 ,  H01J23/36 ,  H01J25/06

摘要： An output circuit for a microwave tube is provided that has generally high interaction impedance for good efficiency, has high average power capability, and is physically large for a given operating frequency. The output circuit is designed to operate in conjunction with an off-axis, bunched electron beam. Electromagnetic fields are applied to the region in which the electron beam propagates to impart an azimuthal velocity to the bunched electron beam. The electron bunches then interact synchronously with a resonant output structure to excite radio-frequency modes from which energy can be extracted and applied to a load.

摘要翻译： 提供了一种用于微波管的输出电路，其具有通常高的相互作用阻抗以获得良好的效率，具有高的平均功率能力，并且对于给定的工作频率在物理上较大。 输出电路设计为与离轴，束状电子束一起工作。 电磁场被施加到电子束传播的区域以赋予束状电子束的方位速度。 电子束然后与谐振输出结构同步地相互作用以激发射频模式，从该频率模式可以提取能量并将其施加到负载。

公开(公告)号：US07710041B2

公开(公告)日：2010-05-04

申请号：US11711037

申请日：2007-02-27

申请人： Setsuo Miyake

发明人： Setsuo Miyake

IPC分类号： H01J25/00

CPC分类号： H01J23/40 ,  H01J25/10

摘要： An output power adjusting mechanisms for adjusting output power is provided on a wave guide of a high frequency output section coupled to an output cavity. The output power adjusting mechanisms is located at a position apart away from the output cavity by a distance of ⅛ wavelength or [(⅛ wavelength)×odd number]. The output power adjusting mechanism includes a reflection adjusting part which is provided in the tube wall of the wave guide so as to be displaceable in the inward and outward directions of the output tube. The output power is adjusted by displacing the reflection adjusting part.

摘要翻译： 用于调节输出功率的输出功率调节机构设置在耦合到输出腔的高频输出部分的波导上。 输出功率调节机构位于远离输出腔的距离为波长或[（⅛波长）×奇数]的距离处。 输出功率调节机构包括反射调节部，该反射调节部设置在波导管的管壁中，以便能够在输出管的向内和向外的方向上移位。 通过移动反射调节部来调节输出功率。

公开(公告)号：US07151347B1

公开(公告)日：2006-12-19

申请号：US11168198

申请日：2005-06-28

申请人： Ganapati Rao Myneni ,  Bjorgvin Hjorvarsson ,  Gianluigi Ciovati

发明人： Ganapati Rao Myneni ,  Bjorgvin Hjorvarsson ,  Gianluigi Ciovati

IPC分类号： H01J25/00 ,  H01J25/10

CPC分类号： H01P11/008 ,  H05H7/20

摘要： A niobium cavity exhibiting high quality factors at high gradients is provided by treating a niobium cavity through a process comprising: 1) removing surface oxides by plasma etching or a similar process; 2) removing hydrogen or other gases absorbed in the bulk niobium by high temperature treatment of the cavity under ultra high vacuum to achieve hydrogen outgassing; and 3) assuring the long term chemical stability of the niobium cavity by applying a passivating layer of a superconducting material having a superconducting transition temperature higher than niobium thereby reducing losses from electron (cooper pair) scattering in the near surface region of the interior of the niobium cavity. According to a preferred embodiment, the passivating layer comprises niobium nitride (NbN) applied by reactive sputtering.

摘要翻译： 通过以下方法处理铌腔来提供在高梯度下呈现高质量因子的铌腔，该方法包括：1）通过等离子蚀刻或类似工艺去除表面氧化物; 2）通过在超高真空下对空腔进行高温处理，去除大量铌中吸收的氢或其他气体，实现氢气除气; 并且3）通过施加超导材料的超导材料的钝化层来确保铌腔的长期化学稳定性，其中超导材料的超导转变温度高于铌，从而减少了在内部的内表面区域内的电子（铜对）散射的损失 铌腔。 根据优选实施例，钝化层包括通过反应溅射施加的氮化铌（NbN）。

公开(公告)号：US07116051B2

公开(公告)日：2006-10-03

申请号：US10888093

申请日：2004-07-09

申请人： Bernard K. Vancil ,  Edwin G. Wintucky

发明人： Bernard K. Vancil ,  Edwin G. Wintucky

IPC分类号： H01J25/00

CPC分类号： H01J25/14

摘要： A multibeam, electrostatically focused klystron includes a plurality of conductive members, ones of which are recessed to provide input and output sections of microwave cavities, wherein focusing voltage is applied between those sections. The conductive members are either spaced along the path of multiple beams, or stacked in insulated relation, in either case being supported by glass rods within a glass envelope.

摘要翻译： 多波束静电聚焦的速调管包括多个导电构件，其中一些导电构件凹入以提供微波腔的输入和输出部分，其中在这些部分之间施加聚焦电压。 导电构件沿着多个梁的路径间隔开，或者以绝缘关系堆叠，在任一情况下由玻璃管内的玻璃棒支撑。

公开(公告)号：US06987361B1

公开(公告)日：2006-01-17

申请号：US10887142

申请日：2004-07-08

申请人： John W. Lewellen ,  John Noonan

发明人： John W. Lewellen ,  John Noonan

IPC分类号： H01J25/00

CPC分类号： H01J3/14 ,  H01J3/021 ,  H01J23/06

摘要： A novel method of gating electron emission from field-emitter cathodes for radio frequency (RF) electrode guns and a novel cathode that provides a focused electron beam without the need for magnetic fields or a curved cathode surface are provided. The phase and strength of a predefined harmonic field, such as the 3rd harmonic field, are adjusted relative to a fundamental field to cause a field emission cathode to emit electrons at predefined times for the generation of high-brightness electron beams. The emission time is gated responsive to the combined harmonic and fundamental fields and the response of the FE cathode to the combined fields. A planar focusing cathode includes a selected dielectric material, such as a ceramic material, to provide an electron beam emission surface. Metal surfaces are provided both radially around and behind the dielectric material to shape the electric fields that accelerate and guide the beam from the cathode surface.

公开(公告)号：US20050077831A1

公开(公告)日：2005-04-14

申请号：US10958255

申请日：2004-10-06

申请人： Hiroshi Tsuchida

发明人： Hiroshi Tsuchida

IPC分类号： H01J23/34 ,  H01J25/00 ,  H01J25/34

CPC分类号： H01J23/34 ,  H01J25/34

摘要： A microwave tube has a configuration in which the connection between an anode electrode and the helix is cut, the helix is grounded, and a current suppression element is provided between the anode electrode and ground voltage for suppressing the continuous time interval of the flow of an excess current to the helix that is caused by discharge to a time interval range that does not threaten damage to the helix, i.e., to a time interval range in which an alarm signal is not supplied.

摘要翻译： 微波管具有这样的结构，其中阳极和螺旋之间的连接被切断，螺旋接地，并且在阳极和接地电压之间设置电流抑制元件，以抑制阳极和螺旋的流动的连续时间间隔 由放电引起的螺旋线的过电流到不会对螺旋线造成损害的时间间隔范围，即到不提供报警信号的时间间隔范围。

公开(公告)号：US06844680B2

公开(公告)日：2005-01-18

申请号：US10621092

申请日：2003-07-16

申请人： Masanori Yoshihara ,  Toshiyuki Tsukada ,  Hideki Ohguri ,  Etsuo Saitou ,  Takeshi Isii

发明人： Masanori Yoshihara ,  Toshiyuki Tsukada ,  Hideki Ohguri ,  Etsuo Saitou ,  Takeshi Isii

IPC分类号： H01J23/20 ,  H01J23/00 ,  H01J23/15 ,  H01J23/22 ,  H01J25/00 ,  H01J25/50 ,  H01J25/587 ,  H05B6/00 ,  H05B6/64

CPC分类号： H01J23/22 ,  H01J23/20 ,  H01J25/587

摘要： In such a case that a radial dimension of an outer circumference of a small-diameter strap ring of a magnetron is equal to “Rs1”, a radial dimension of an inner circumference of a large-diameter strap ring is equal to “Rs2”, a radius of a circumference which is inscribed to tip portions of anode vanes is equal to “Ra”, and a radius of a central flat portion of a magnetic piece, which is located in the vicinity of each of the anode vanes, is equal to “Rp”, the respective values of Ra, Rs1, Rs2, Rp are set in such a manner that the below-mentioned formulae (1) and (2) can be established: 1.85Ra≦(Rs1+Rs2)/2≦1.96Ra  (1) Rs1

摘要翻译： 在磁控管的小直径带环的外周的径向尺寸等于“Rs1”的情况下，大直径带环的内周的径向尺寸等于“Rs2”， 与阳极叶片的末端部分接合的圆周半径等于“Ra”，并且位于每个阳极叶片附近的磁性片的中心平坦部分的半径等于 “Rp”分别设定Ra，Rs1，Rs2，Rp的各个值，使得可以确定下述式（1）和（2）：

公开(公告)号：US5767625A

公开(公告)日：1998-06-16

申请号：US632589

申请日：1996-04-15

申请人： Merrald B. Shrader ,  Andrew A. Haase

发明人： Merrald B. Shrader ,  Andrew A. Haase

IPC分类号： H01J25/00 ,  H01J23/00 ,  H01J23/065 ,  H01J23/12 ,  H01J23/14 ,  H01J23/207 ,  H01J23/36 ,  H01J23/46 ,  H01J23/54 ,  H01J25/04 ,  H01J25/02

CPC分类号： H01J23/12 ,  H01J23/005 ,  H01J23/065 ,  H01J23/14 ,  H01J23/207 ,  H01J23/36 ,  H01J23/54 ,  H01J25/04

摘要： A vacuum tube for handling an r.f. signal having a predetermined frequency range comprises a cathode, a heater, and a non-electron emissive grid. The grid is positioned from the cathode by the distance an emitted electron from the cathode can travel in a quarter cycle of the r.f. signal. Outer and inner metal tubes forming a resonant line of a signal coupler are respectively connected to the grid and cathode. R.F. absorbers absorb r.f. fields in an interaction region between an anode and the grid. In one embodiment a coupling loop is between metal tubes at an end of the tubes spaced n.lambda./4 from the grid and cathode. In a second embodiment the coupler includes a coaxial line having an inner conductor connected to a first metal face, spaced from a second opposed metal face by a solid dielectric. An outer conductor is connected to a third metal face, spaced from a fourth opposed metal face by the dielectric. The third and fourth faces surround the first and second faces. The first and third faces are at ground potential while the second and fourth faces are at high negative DC voltages. The second and fourth faces are respectively at common ends of interior and exterior coaxial metal tubes forming a .lambda./2 coupler. Hollow inductive structures extend between the inner and outer metal tubes and at different locations along the tubes. Bias leads may be inserted into the inductive structures for shielding.

摘要翻译： 一个用于处理r.f.的真空管 具有预定频率范围的信号包括阴极，加热器和非电子发射栅格。 栅极从阴极定位发射的电子从阴极可以在r.f的四分之一周期内行进的距离。 信号。 形成信号耦合器的谐振线路的外部和内部金属管分别连接到栅极和阴极。 R.F. 吸收体吸收r.f. 在阳极和栅格之间的相互作用区域中的场。 在一个实施例中，耦合回路位于与栅极和阴极间隔开nλ/ 4的管的端部处的金属管之间。 在第二实施例中，耦合器包括同轴线，其具有连接到第一金属面的内部导体，通过固体电介质与第二相对的金属表面间隔开。 外部导体连接到第三金属表面，通过电介质与第四相对的金属表面间隔开。 第三和第四面围绕第一和第二面。 第一和第三面处于接地电位，而第二和第四面处于高负的直流电压。 第二和第四面分别在形成λ/ 2耦合器的内部和外部同轴金属管的共同端部。 空心电感结构在内金属管和外金属管之间以及沿着管的不同位置延伸。 偏置引线可以插入到用于屏蔽的感应结构中。