公开(公告)号：US10692681B1

公开(公告)日：2020-06-23

申请号：US14688762

申请日：2015-04-16

申请人： R. Lawrence Ives ,  Michael Read ,  Patrick Ferguson

发明人： R. Lawrence Ives ,  Michael Read ,  Patrick Ferguson

IPC分类号： H01J25/42 ,  H01J23/02

摘要： A coupled cavity traveling wave tube has periodic permanent magnet (PPM) RF cavity structures, each of which has a plurality of permanent magnets placed substantially equidistant from a central axis, and which are outside the extent of a plurality of electron beam tunnels arranged substantially equidistant from the central axis and within the extents of the plurality of permanent magnets. Each coupled cavity RF structure is formed by adjacent ferrous polepieces and a cylindrical wall which is beyond the extent of one or more coupling apertures which couple RF energy from one coupled cavity structure to an adjacent RF cavity.

公开(公告)号：US09013104B1

公开(公告)日：2015-04-21

申请号：US14059641

申请日：2013-10-22

申请人： Patrick Ferguson ,  Michael Read ,  R. Lawrence Ives

发明人： Patrick Ferguson ,  Michael Read ,  R. Lawrence Ives

IPC分类号： H01J23/08 ,  H01J25/10 ,  H01J23/087

CPC分类号： H01J25/10 ,  H01J23/0873

摘要： A periodic permanent magnet (PPM) klystron has beam transport structures and RF cavity structures, each of which has permanent magnets placed substantially equidistant from a beam tunnel formed about the central axis, and which are also outside the extent of a cooling chamber. The RF cavity sections also have permanent magnets which are placed substantially equidistant from the beam tunnel, but which include an RF cavity coupling to the beam tunnel for enhancement of RF carried by an electron beam in the beam tunnel.

摘要翻译： 周期性永磁体（PPM）速调管具有光束传输结构和RF空腔结构，其中每个具有永久磁体，该永磁体与围绕中心轴线形成的梁隧道基本上等距离放置，并且也在冷却室的范围外。 RF空腔部分还具有永久磁体，该永久磁体基本上与梁隧道等距离放置，但是包括耦合到梁隧道的RF空腔，用于增强由梁通道中的电子束携带的RF。

公开(公告)号：US08547006B1

公开(公告)日：2013-10-01

申请号：US12705160

申请日：2010-02-12

申请人： R. Lawrence Ives ,  Hien T. Tran ,  Thuc Bui ,  Adam Attarian ,  William Tallis ,  John David ,  Virginia Forstall ,  Cynthia Andujar ,  Noah T. Blach ,  David B. Brown ,  Sean E. Gadson ,  Erin M. Kiley ,  Michael Read

发明人： R. Lawrence Ives ,  Hien T. Tran ,  Thuc Bui ,  Adam Attarian ,  William Tallis ,  John David ,  Virginia Forstall ,  Cynthia Andujar ,  Noah T. Blach ,  David B. Brown ,  Sean E. Gadson ,  Erin M. Kiley ,  Michael Read

IPC分类号： H01J29/02

CPC分类号： H01J23/06 ,  H01J3/027 ,  H01J25/10

摘要： A multi-beam electron gun provides a plurality N of cathode assemblies comprising a cathode, anode, and focus electrode, each cathode assembly having a local cathode axis and also a central cathode point defined by the intersection of the local cathode axis with the emitting surface of the cathode. Each cathode is arranged with its central point positioned in a plane orthogonal to a device central axis, with each cathode central point an equal distance from the device axis and with an included angle of 360/N between each cathode central point. The local axis of each cathode has a cathode divergence angle with respect to the central axis which is set such that the diverging magnetic field from a solenoidal coil is less than 5 degrees with respect to the projection of the local cathode axis onto a cathode reference plane formed by the device axis and the central cathode point, and the local axis of each cathode is also set such that the angle formed between the cathode reference plane and the local cathode axis results in minimum spiraling in the path of the electron beams in a homogenous magnetic field region of the solenoidal field generator.

摘要翻译： 多射束电子枪提供多个N个阴极组件，其包括阴极，阳极和聚焦电极，每个阴极组件具有局部阴极轴线以及由局部阴极轴线与发射表面相交的中心阴极点 的阴极。 每个阴极布置成其中心点位于与器件中心轴正交的平面中，每个阴极中心点与器件轴线相等，并且每个阴极中心点之间的夹角为360 / N。 每个阴极的局部轴线相对于中心轴线具有阴极发散角，其设定为使得来自螺线管线圈的发散磁场相对于阴极参考平面的局部阴极轴线的投影小于5度 由器件轴和中心阴极点形成，并且每个阴极的局部轴也被设置为使得在阴极参考平面和局部阴极轴之间形成的角度导致电子束在均匀的路径中的最小螺旋 磁场发生器的磁场区域。

公开(公告)号：US06838829B2

公开(公告)日：2005-01-04

申请号：US10038016

申请日：2002-01-03

申请人： R. Lawrence Ives

发明人： R. Lawrence Ives

IPC分类号： H01J23/02 ,  H01J23/027 ,  H03F3/56

CPC分类号： H01J23/027

摘要： A depressed collector for recovery of spent beam energy from electromagnetic sources emitting sheet or large aspect ration annular electron beams operating aver a broad range of beam voltages and currents. The collector incorporates a trap for capturing and preventing the return of reflected and secondary electrons.

摘要翻译： 用于从发射片材的电磁源或大面积比例的环形电子束回收乏束能量的凹陷式收集器，其操作范围广泛的束电压和电流。 收集器集成了用于捕获并防止反射和二次电子返回的陷阱。

公开(公告)号：US5780970A

公开(公告)日：1998-07-14

申请号：US740108

申请日：1996-10-28

申请人： Amarjit Singh ,  R. Lawrence Ives ,  Richard V. Schumacher ,  Yosuke M. Mizuhara

发明人： Amarjit Singh ,  R. Lawrence Ives ,  Richard V. Schumacher ,  Yosuke M. Mizuhara

IPC分类号： H01J23/027 ,  H01J23/10

CPC分类号： H01J23/10 ,  H01J23/0275 ,  H01J2225/025

摘要： A multi-stage depressed collector for receiving energy from a small orbit gyrating electron beam employs a plurality of electrodes at different potentials for sorting the individual electrons on the basis of their total energy level. Magnetic field generating coils, for producing magnetic fields and magnetic iron for magnetic field shaping produce adiabatic and controlled non-adiabatic transitions of the incident electron beam to further facilitate the sorting.

摘要翻译： 用于从小轨道旋转电子束接收能量的多级压陷集电体采用不同电位的多个电极，用于基于它们的总能量水平对各个电子进行分选。 用于产生磁场的磁场产生线圈和用于磁场成形的磁铁使得入射电子束的绝热和受控的非绝热转变进一步便于分选。

公开(公告)号：US09252472B1

公开(公告)日：2016-02-02

申请号：US14172911

申请日：2014-02-05

申请人： R. Lawrence Ives ,  Yosuke M. Mizuhara

发明人： R. Lawrence Ives ,  Yosuke M. Mizuhara

IPC分类号： H01P1/26 ,  H01P1/24

CPC分类号： H01P1/24 ,  H01Q13/02 ,  H01Q15/10 ,  H01Q17/00 ,  H01Q19/19

摘要： A load for traveling microwave energy has an absorptive volume defined by cylindrical body enclosed by a first end cap and a second end cap. The first end cap has an aperture for the passage of an input waveguide with a rotating part that is coupled to a reflective mirror. The inner surfaces of the absorptive volume consist of a resistive material or are coated with a coating which absorbs a fraction of incident RF energy, and the remainder of the RF energy reflects. The angle of the reflector and end caps is selected such that reflected RF energy dissipates an increasing percentage of the remaining RF energy at each reflection, and the reflected RF energy which returns to the rotating mirror is directed to the back surface of the rotating reflector, and is not coupled to the input waveguide. Additionally, the reflector may have a surface which generates a more uniform power distribution function axially and laterally, to increase the power handling capability of the RF load. The input waveguide may be corrugated for HE11 mode input energy.

摘要翻译： 用于行进微波能量的负载具有由第一端盖和第二端盖包围的圆柱形主体限定的吸收体积。 第一端盖具有用于通过耦合到反射镜的旋转部分的输入波导通过的孔。 吸收体积的内表面由电阻材料组成，或者涂覆有吸收一部分入射RF能量的涂层，并且其余的RF能量反射。 选择反射器和端盖的角度使得反射的RF能量在每次反射时消耗剩余RF能量的增加百分比，并且返回到旋转反射镜的反射RF能量被引导到旋转反射器的后表面， 并且不耦合到输入波导。 此外，反射器可以具有轴向和横向地产生更均匀的功率分布功能的表面，以增加RF负载的功率处理能力。 对于HE11模式输入能量，输入波导可以是波纹形的。

公开(公告)号：US08664853B1

公开(公告)日：2014-03-04

申请号：US13587200

申请日：2012-08-16

申请人： Eric J. Montgomery ,  R. Lawrence Ives ,  Louis R. Falce

发明人： Eric J. Montgomery ,  R. Lawrence Ives ,  Louis R. Falce

IPC分类号： H01J40/06

CPC分类号： H01J40/06

摘要： A photoelectric cathode has a work function lowering material such as cesium placed into an enclosure which couples a thermal energy from a heater to the work function lowering material. The enclosure directs the work function lowering material in vapor form through a low diffusion layer, through a free space layer, and through a uniform porosity layer, one side of which also forms a photoelectric cathode surface. The low diffusion layer may be formed from sintered powdered metal, such as tungsten, and the uniform porosity layer may be formed from wires which are sintered together to form pores between the wires which are continuous from the a back surface to a front surface which is also the photoelectric surface.

摘要翻译： 光电阴极具有放置在将加热器的热能耦合到功函数降低材料的外壳中的诸如铯的功函数降低材料。 外壳通过低扩散层通过自由空间层和通过均匀的孔隙层引导蒸气形式的功函数降低材料，其一侧也形成光电阴极表面。 低扩散层可以由诸如钨的烧结的金属粉末形成，并且均匀的孔隙层可以由在一起烧结的线材形成，以在从后表面到前表面连续的导线之间形成孔， 也是光电表面。

公开(公告)号：US5949298A

公开(公告)日：1999-09-07

申请号：US956350

申请日：1997-10-23

申请人： R. Lawrence Ives ,  Yosuke M. Mizuhara ,  Richard V. Schumacher ,  Rand P. Pendleton

发明人： R. Lawrence Ives ,  Yosuke M. Mizuhara ,  Richard V. Schumacher ,  Rand P. Pendleton

IPC分类号： H01P1/26

CPC分类号： H01P1/262

摘要： A high power water load for microwave and millimeter wave radio frequency sources has a front wall including an input port for the application of RF power, a cylindrical dissipation cavity lined with a dissipating material having a thickness which varies with depth, and a rear wall including a rotating reflector for the reflection of wave energy inside the cylindrical cavity. The dissipation cavity includes a water jacket for removal of heat generated by the absorptive material coating the dissipation cavity, and this absorptive material has a thickness which is greater near the front wall than near the rear wall. Waves entering the cavity reflect from the rotating reflector, impinging and reflecting multiple times on the absorptive coating of the dissipation cavity, dissipating equal amounts of power on each internal reflection.

摘要翻译： 用于微波和毫米波射频源的高功率水负荷具有前壁，其包括用于施加RF功率的输入端口，衬有散射材料的圆柱形耗散腔，其具有随深度而变化的厚度，以及包括 用于反射圆柱腔内的波能的旋转反射器。 耗散腔包括一个水套，用于去除涂覆消散腔的吸收材料产生的热量，该吸收材料的厚度在靠近前壁的靠近后壁处具有更大的厚度。 进入腔体的波形从反射镜反射，在散射腔的吸收涂层上多次入射和反射，在每个内部反射上消耗相等的功率。

公开(公告)号：US09698454B1

公开(公告)日：2017-07-04

申请号：US13937216

申请日：2013-07-09

申请人： R. Lawrence Ives ,  Gerald Lucovsky ,  Daniel Zeller

发明人： R. Lawrence Ives ,  Gerald Lucovsky ,  Daniel Zeller

IPC分类号： H05H1/24 ,  H01P1/08

CPC分类号： H01P1/08 ,  C23C16/34 ,  C23C16/507

摘要： A process for forming a coating for an RF window which has improved secondary electron emission and reduced multipactor for high power RF waveguides is formed from a substrate with low loss tangent and desirable mechanical characteristics. The substrate has an RPAO deposition layer applied which oxygenates the surface of the substrate to remove carbon impurities, thereafter has an RPAN deposition layer applied to nitrogen activate the surface of the substrate, after which a TiN deposition layer is applied using Titanium tert-butoxide. The TiN deposition layer is capped with a final RPAN deposition layer of nitridation to reduce the bound oxygen in the TiN deposition layer. The resulting RF window has greatly improved titanium layer adhesion, reduced multipactor, and is able to withstand greater RF power levels than provided by the prior art.

公开(公告)号：US06847168B1

公开(公告)日：2005-01-25

申请号：US09629364

申请日：2000-08-01

申请人： R. Lawrence Ives ,  George Miram

发明人： R. Lawrence Ives ,  George Miram

IPC分类号： H01J23/065 ,  H01J23/087 ,  H01J25/02 ,  H01J25/10

CPC分类号： H01J23/065 ,  H01J25/10

摘要： An RF device comprising a plurality of drift tubes, each drift tube having a plurality of gaps defining resonant cavities, is immersed in an axial magnetic field. RF energy is introduced at an input RF port at one of these resonant cavities and collected at an output RF port at a different RF cavity. A plurality of electron beams passes through these drift tubes, and each electron beam has an individual magnetic shaping applied which enables confined beam transport through the drift tubes.

摘要翻译： 包括多个漂移管的RF装置，每个具有限定谐振腔的间隙的漂移管浸入轴向磁场中。 RF能量被引入到这些谐振腔中的一个处的输入RF端口处，并且在不同RF空腔处的输出RF端口处被收集。 多个电子束通过这些漂移管，并且每个电子束具有施加的单独的磁性成形，其使得能够将束流传输通过漂移管。