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    • 3. 发明授权
    • Method and apparatus for RF input coupling for inductive output tubes and other emission gated devices
    • 用于感应输出管和其他发射门控器件的RF输入耦合的方法和装置
    • US07688132B2
    • 2010-03-30
    • US11946718
    • 2007-11-28
    • Mark Frederick KirshnerRichard Donald KowalczykCraig Bisset Wilsen
    • Mark Frederick KirshnerRichard Donald KowalczykCraig Bisset Wilsen
    • H01J25/02
    • H03F3/56H01J25/34H03F3/58
    • An input circuit of a microwave amplification tube achieves improved instantaneous bandwidth. By directly coupling the transmission line carrying a modulating radio frequency signal to a control grid, a low-Q input circuit is created that increases the fractional bandwidth of the system. A resonant cavity may be used to generate a voltage across the gap between the cathode and the control grid. Alternative geometries are presented whereby the electron beam is emitted from a cathode connected either to the center conductor of the transmission line or to the outer conductor of the transmission line. Alternatively, the electric field of the radio-frequency signal propagating through the transmission line may be used to create a voltage across the gap between the cathode and the control grid without using a resonant cavity. Likewise, alternative geometries are presented by which the electron beam is emitted from a cathode connected either to the center conductor or to the outer conductor of the transmission line.
    • 微波放大管的输入电路实现了改善的瞬时带宽。 通过将携带调制射频信号的传输线直接耦合到控制网格,产生增加系统的分数带宽的低Q输入电路。 谐振腔可用于在阴极和控制栅之间的间隙上产生电压。 呈现替代的几何形状,由此电子束从连接到传输线的中心导体或传输线的外部导体的阴极发射。 或者,通过传输线传播的射频信号的电场可用于在不使用谐振腔的情况下在阴极和控制栅之间的间隙上产生电压。 同样,提出了替代的几何形状,通过该几何形状,电子束从连接到中心导体或传输线的外部导体的阴极发射。
    • 4. 发明授权
    • Low energy electron cooling system and method for increasing the phase space intensity and overall intensity of low energy ion beams
    • 低能电子冷却系统及提高低能离子束相空间强度和总体强度的方法
    • US07501640B2
    • 2009-03-10
    • US11678583
    • 2007-02-24
    • Delbert J. Larson
    • Delbert J. Larson
    • H01J25/02
    • H05H15/00
    • A low energy electron cooling system and method for increasing the phase space intensity and overall intensity of low energy ion beams, including a vacuum chamber to allow electron beam and ion beam merging and separation, a cathode to generate the electron beam, a collector to collect the electron beam, magnetic field generation devices to guide the electrons on their desired trajectories, and electrodes to accelerate and decelerate the electron beam. By overlapping the electron and ion beams, thermal energy is transferred from the ion beam to the electron beam, which allows an increase in the phase space density and overall density of the ion beams. Advantageously, the low energy electron cooling system uses electrodes to set up electrostatic potentials that trap non-beam neutralizing-background-ions longitudinally within the electron cooling region and solenoidal fields that trap the non-beam neutralizing-background-ions radially within the electron cooling region. The trapped non-beam neutralizing-background-ions allow electron cooling currents that are vastly larger than the space charge limit of previous electron cooling devices, which leads to vastly improved functioning of the electron cooling device over previous electron cooling devices.
    • 一种低能电子冷却系统和方法,用于增加低能量离子束的相空间强度和总体强度,包括一个允许电子束和离子束合并和分离的真空室,阴极产生电子束,收集器收集 电子束,磁场产生装置,以引导电子在其所需的轨迹上,以及电极,用于加速和减速电子束。 通过重叠电子和离子束,热能从离子束传递到电子束,这允许增加离子束的相空间密度和总体密度。 有利地,低能电子冷却系统使用电极来建立静电电位,其在电子冷却区域内纵向捕获非束中和背景离子,并且在电子冷却期间径向捕获非束中和背景离子的螺线管场 地区。 捕获的非光束中和背景离子允许电子冷却电流远大于先前的电子冷却装置的空间电荷极限,这导致电子冷却装置与先前的电子冷却装置的功能大大改善。
    • 6. 发明授权
    • Microwave frequency energy generating apparatus provided with a voltage
converting means
    • 具有电压转换装置的微波频率能量发生装置
    • US5883368A
    • 1999-03-16
    • US985209
    • 1997-12-04
    • Shin-Jae Jeong
    • Shin-Jae Jeong
    • H05B6/64H01J25/04H01J25/02
    • H01J25/04H01J2225/02
    • An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit. The apparatus further includes a trimming resistor, one end of which is connected to the first grid and the other end thereof is connected the cathode, for inducing a bias voltage on the first grid, a second grid provided above the first grid and having a plurality of slots through which the electron beams passing through the slots of the first grid pass, an anode for receiving the electrons passing through the slot of the second grid, a voltage converting means for rectifying an AC input voltage and providing a DC driving voltage to the cathode and the anode, an antenna for extracting the microwave from an output cavity, the output cavity being defined by the second grid and the anode, and a feedback structure extending from the input cavity to the output cavity, for feeding a portion of the microwave frequency energy back to the input cavity.
    • 用于产生微波频率能量的装置包括用于发射电子的阴极,用于控制和聚焦来自阴极的电子流的第一栅极,用作电容器的扼流结构,其中阴极,第一栅极和扼流结构 定义用作谐振电路的输入腔。 该装置还包括微调电阻器,其一端连接到第一栅极,另一端连接阴极,用于在第一栅极上产生偏置电压,第二栅极设置在第一栅极之上并具有多个 穿过第一栅格的槽的电子束通过的槽,用于接收通过第二栅极的槽的电子的阳极;电压转换装置,用于整流交流输入电压,并向直流驱动电压提供直流驱动电压 阴极和阳极,用于从输出腔提取微波的天线,输出腔由第二栅极和阳极限定,以及从输入腔延伸到输出腔的反馈结构,用于馈送微波的一部分 频率能量回到输入腔。
    • 8. 发明授权
    • High frequency vacuum tube with closely spaced cathode and non-emissive
grid
    • 高频真空管具有紧密间隔的阴极和非发射栅格
    • US5767625A
    • 1998-06-16
    • US632589
    • 1996-04-15
    • Merrald B. ShraderAndrew A. Haase
    • Merrald B. ShraderAndrew A. Haase
    • H01J25/00H01J23/00H01J23/065H01J23/12H01J23/14H01J23/207H01J23/36H01J23/46H01J23/54H01J25/04H01J25/02
    • H01J23/12H01J23/005H01J23/065H01J23/14H01J23/207H01J23/36H01J23/54H01J25/04
    • 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.
    • 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。
    • 9. 发明授权
    • Double beam cyclotron maser
    • 双梁回旋加速器
    • US5363054A
    • 1994-11-08
    • US842246
    • 1992-02-27
    • George Bekefi
    • George Bekefi
    • H01J25/02H01S1/00H01S3/30H01J23/08
    • H01S1/005H01J25/025
    • A double beam cyclotron maser comprising two electron guns for introducing two electron beams traveling parallel to each other at different speeds into an electron drift tube/waveguide. The beams have respectively different electron cyclotron space-charge harmonics. A solenoid maintains a magnetic field parallel to the direction of propagation of the electron beams while a magnetic wiggler field initially imparts a transverse force to the electrons such that they propagate down the drift tube with a helical gyration. The magnetic fields, electron beam velocities, and beam space charge harmonics are adjustable to set the interaction frequency at which amplification of electromagnetic radiation can occur. The waveguide is a slow wave structure so configured as to slow the signal from the magnetron to match the phase velocity of the double stream cyclotron space-charge wave.
    • 一种双光束回旋加速器,包括两个电子枪,用于将以不同速度彼此平行行进的两个电子束引入到电子漂移管/波导中。 光束分别具有不同的电子回旋加速器空间 - 电荷谐波。 螺线管保持与电子束的传播方向平行的磁场,而磁性摆动磁场最初向电子施加横向力,使得它们以螺旋形旋转向下传播到漂移管。 可以调节磁场,电子束速度和光束空间电荷谐波,以设置可发生电磁辐射放大的相互作用频率。 波导是慢波结构,其被配置为减慢来自磁控管的信号以匹配双流回旋加速器空间电荷波的相速度。
    • 10. 发明授权
    • Amplifying arrangements which modulate an electron beam
    • 调制电子束的放大布置
    • US5281923A
    • 1994-01-25
    • US730166
    • 1991-07-16
    • Roy Heppinstall
    • Roy Heppinstall
    • H03F3/56H01J25/02
    • H03F3/56
    • An amplifying arrangement employs both density and velocity modulation of an electron beam in order to produce amplification of a high frequency signal. In one embodiment, density modulation is produced at the cathode region, a first carrier signal being applied between a cathode and a modulation grid to produce bunching of electrons. The density modulated electron beam is then velocity modulated at a first resonant cavity. It is preferred that the first carrier signal is twice the frequency of the carrier signal producing the velocity modulation. The arrangement may be such that, at the final resonant cavity, adjacent electron bunches produced by density modulation combine, thus giving a high efficiency amplifying arrangement.
    • 放大布置采用电子束的密度和速度调制,以便产生高频信号的放大。 在一个实施例中,在阴极区域产生密度调制,第一载流子信号被施加在阴极和调制栅格之间以产生电子的聚束。 密度调制电子束然后在第一谐振腔处进行速度调制。 优选地,第一载波信号是产生速度调制的载波信号的频率的两倍。 该布置可以使得在最终谐振腔处,通过密度调制产生的相邻电子束组合在一起,从而提供高效率的放大布置。