Broadbend pulsed microwave generator having a plurality of optically
triggered cathodes

    公开(公告)号:US5563555A

    公开(公告)日:1996-10-08

    申请号:US472198

    申请日:1995-06-07

    IPC分类号: H01J25/00 H03B9/00

    CPC分类号: H01J25/00

    摘要: Disclosed is a method and apparatus for generating a very fast electron pulse (30) in a vacuum. The electron source comprises a pulse-forming line (12), a solid-state switch (14), a cold field-emitting cathode (16), and an anode grid (18). The anode grid forms a portion of a side of an evacuated circuit (20) that may be used to produce an oscillating output signal or that may be a portion of a waveguide carrying an rf signal to be amplified. In operation, the pulse-forming line is charged to a desirable voltage. The solid-state switch is then closed, coupling the pulse-forming line to the cathode. An electric field develops between the cathode and anode grid. Under the influence of the electric field, the cathode emits an electron current pulse that is attracted by the anode grid. The current pulse enters the region between the anode and closure grids, and interacts with the electromagnetic field in the cavity at the appropriate time to add its energy to the electromagnetic field of the cavity. A group of electron sources can be employed to provide rf generation or wideband amplification in a waveguide circuit through proper timing of the closure of a set of cathode-switch elements configured along the direction of propagation of a wave to be amplified. By proper selection of timing, a very flexible set of output frequencies and waveforms may be obtained. The propagating waveguide circuit may also be made resonant by shorting both ends, and configured for pulse-to-pulse frequency diversity by properly timing the cathode-switch current sources to generate alternative frequencies. The multiple-source resonant circuit can also be used to generate very high peak power pulses by using the set of cathode-switch sources repetitively to build up a high voltage across the cavity, with the output load disconnected, and then to discharge the built-up voltage into the load by closing a switch in the output circuit at the appropriate time.

    Extended interaction microwave oscillator including a sucession of vanes
with orifices
    4.
    发明授权
    Extended interaction microwave oscillator including a sucession of vanes with orifices 失效
    扩展相互作用的微波振荡器包括叶片的叶片与孔

    公开(公告)号:US4439746A

    公开(公告)日:1984-03-27

    申请号:US265375

    申请日:1981-05-20

    申请人: Bernard Epsztein

    发明人: Bernard Epsztein

    CPC分类号: H01J23/24 H01J25/11

    摘要: This oscillator comprises a periodic structure line constituted by a succession of vanes having an orifice in which propagates a linear electron beam. This line is placed over a cavity constituted by a straight parallelepiped which has a rectangular base, whose dimensions are determined in such a way that it behaves like a waveguide at the cut-off frequency, along the longitudinal axis of the line and on a transverse magnetic or TM.sub.mn mode with m=1, 3, 5 etc. and n=1, 2, 3, 4 etc. Coupling slots are provided on the cavity between two successive vanes and in a gap between pairs of vanes. The anode voltage of the beam and the distance between two successive vanes are selected in such a way that the cavity resonates at the cut-off frequency and on the .pi. mode. Applications include measuring oscillators and heterodyne radar transmitters and receivers.

    摘要翻译: 该振荡器包括由具有传播线性电子束的孔的一系列叶片构成的周期性结构线。 该线放置在由直的平行六面体构成的空腔中,该平行六面体具有矩形基底,其尺寸以这样的方式确定,使得其沿着线的纵向轴线在截止频率处的波导和横向 磁性或TMmn模式,其中m = 1,3,5等,并且n = 1,2,3,4等。耦合槽设置在两个连续叶片之间的空腔上,并且在叶片对之间的间隙中。 选择光束的阳极电压和两个连续叶片之间的距离,使得腔体以截止频率和pi模式谐振。 应用包括测量振荡器和外差雷达发射器和接收器。

    HIGH POWER MICROWAVE WASTE MANAGEMENT
    6.
    发明申请
    HIGH POWER MICROWAVE WASTE MANAGEMENT 审中-公开
    高功率微波废物管理

    公开(公告)号:US20090121798A1

    公开(公告)日:2009-05-14

    申请号:US11837384

    申请日:2007-08-10

    IPC分类号: H03B9/00

    CPC分类号: H05B6/802

    摘要: A variable capacitor power supply for a high-power, industrial magnetron is powered directly from a conventional, public-service, 4,160 volt and higher power line. The magnetron's output is removably attached to a tractor trailers or train boxcar fabricated as a microwave work chambers. Microwave work chambers are configured to dry waste, burn dried waste, enhance chemical processes, fix free nitrogen, burn waste metal, reclaim component metals from mixed waste metal, and for gasification, pyrolysis, and plasma waste disposal. Alternately, the microwave power supply is removably connected to an underground cave, configured as a microwave oven chamber, to microwave waste therein. The microwave power supply is located in the basement of a high rise building designed to convert the high rise building waste into heat and electricity.

    摘要翻译: 用于大功率工业磁控管的可变电容器电源直接由传统的公共服务的4,160伏特和更高电力线供电。 磁控管的输出可拆卸地连接到作为微波工作室制造的拖拉机拖车或火车箱。 微波工作室配置为干燥废物,燃烧干燥废物,增强化学过程,固定游离氮,燃烧废金属,从混合废金属中回收组分金属,以及气化,热解和等离子体废物处理。 或者,微波电源可移除地连接到配置为微波炉室的地下洞穴中,以将微波废物。 微波电源位于高层建筑的地下室,旨在将高层建筑废物转化为热电。

    Dielectric resonator feed back stabilizer
    7.
    发明授权
    Dielectric resonator feed back stabilizer 失效
    介质谐振器反馈稳定器

    公开(公告)号:US5103194A

    公开(公告)日:1992-04-07

    申请号:US632801

    申请日:1990-12-24

    申请人: Bernard E. Sigmon

    发明人: Bernard E. Sigmon

    IPC分类号: H03B5/18 H03B9/00 H03B9/14

    摘要: A dielectric resonator feed back stabilizer comprising a circulator, 3-dB, 90.degree. hybrid dielectric resonator, and isolator. The circulator provides an input electromagnetic signal from a source to the hybrid, which splits the input signal into two outputs with 90.degree. relative phase difference. One hybrid output is to the load and the other is to a dielectric resonator with high Q. The dielectric resonator reflects a portion of the input signal corresponding to the dielectric resonator operating frequency back to the hybrid which splits the reflected signal into two outputs 90 degree relative phase difference. The first signal reflected back through the hybrid, 180 degrees out of phase with the hybrid input signal from the circulator, is cancelled by superposition with the hybrid input signal. The second reflected signal travels through an isolator to the circulator injection locks the source input signal.

    摘要翻译: 一种介质谐振器反馈稳定器,包括循环器,3-dB,90°混合介质谐振器和隔离器。 循环器提供从源到混合器的输入电磁信号,将输入信号分解成具有90°相对相位差的两个输出。 一个混合输出是负载,另一个是具有高Q的介质谐振器。介质谐振器将对应于介质谐振器工作频率的输入信号的一部分反射回混合,将反射信号分成两个输出90度 相对相位差。 通过与混合输入信号的叠加来抵消来自环行器的混合输入信号与混合信号反向180度异相的第一信号被抵消。 第二反射信号通过隔离器传播到环行器注入锁定源输入信号。

    High peak power microwave generator using light activated switches
    8.
    发明授权
    High peak power microwave generator using light activated switches 失效
    高峰值功率微波发生器采用光启动开关

    公开(公告)号:US4176295A

    公开(公告)日:1979-11-27

    申请号:US915649

    申请日:1978-06-15

    摘要: A high peak power microwave generator is disclosed in which a plurality of transmission lines are connected to an output wave guide at predetermined intervals along the direction of propagation. Each transmission line is periodically charged, and this electromagnetic energy is released into the wave guide upon the actuation of a light activated silicon switch (LASS) diode connected to the transmission line. The LASS diodes are actuated simultaneously by a laser beam which traverses equal optical paths to each switch. The coincident switching of the transmission lines enables the power in each line to be additive in the wave guide, and much higher output pulses can be obtained. Further, the high speed switching capabilities afforded by the LASS diodes means that the resulting high power can be obtained at a much higher frequency.

    摘要翻译: 公开了一种高峰值功率微波发生器,其中多个传输线沿着传播方向以预定间隔连接到输出波导。 每个传输线被周期性地充电,并且当连接到传输线的光激活硅开关(LASS)二极管的致动时,该电磁能被释放到波导中。 LASS二极管通过穿过每个开关相同光路的激光束同时启动。 传输线的重合切换使得每行中的功率在波导中是相加的,并且可以获得更高的输出脉冲。 此外,LASS二极管提供的高速切换功能意味着可以以更高的频率获得所得到的高功率。

    System and method for controlling redundant actuators with different dynamics

    公开(公告)号:US10324446B2

    公开(公告)日:2019-06-18

    申请号:US15447448

    申请日:2017-03-02

    摘要: A laser processing system includes redundant actuators positioning a laser spot on a workpiece. The system determines a first trajectory of the first actuator minimizing motion of the first actuator that positions the second actuator such that each point of the reference trajectory is within a range of the second actuator and determines a second trajectory of the second actuator based on a difference between the reference trajectory and the first trajectory. For each axis of control, the system determines an envelope centered on the reference trajectory with a width not greater than the range of the second actuator and determines shortest trajectory traversing the envelope along the time domain to produce the first trajectory. Hence, the first trajectory includes a set of straight segments satisfying the constraints defined by the shape of the envelope. The system includes controllers for control the motion of redundant actuators.