Magnetron
    1.
    发明申请
    Magnetron 失效
    磁控管

    公开(公告)号:US20040012349A1

    公开(公告)日:2004-01-22

    申请号:US10621092

    申请日:2003-07-16

    CPC classification number: H01J23/22 H01J23/20 H01J25/587

    Abstract: In such a case that a radial dimension of an outer circumference of a small-diameter strap ring of a magnetron is equal to nullRs1null, a radial dimension of an inner circumference of a large-diameter strap ring is equal to nullRs2null, a radius of a circumference which is inscribed to tip portions of anode vanes is equal to nullRanull, 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 nullRpnull, 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: 1.85 Ranull(Rs1nullRs2)/2null1.96 Ranullnull(1) Rs1

    Abstract translation: 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):1.85 Ra <=(Rs1 + Rs2)/ 2 < = 1.96 Ra(1)Rs1

    LINEAR AMPLIFIER HAVING DISCRETE RESONANT CIRCUIT ELEMENTS AND PROVIDING NEAR-CONSTANT EFFICIENCY ACROSS A WIDE RANGE OF OUTPUT POWER
    2.
    发明申请
    LINEAR AMPLIFIER HAVING DISCRETE RESONANT CIRCUIT ELEMENTS AND PROVIDING NEAR-CONSTANT EFFICIENCY ACROSS A WIDE RANGE OF OUTPUT POWER 失效
    具有分立谐振电路元件的线性放大器,并且通过广泛的输出功率范围提供近似的效率

    公开(公告)号:US20010011924A1

    公开(公告)日:2001-08-09

    申请号:US08887796

    申请日:1997-07-03

    Inventor: ROBERT S. SYMONS

    CPC classification number: H01J25/04 H01J23/0275 H01J23/34 H03F3/56

    Abstract: A linear amplifier comprises an electron gun assembly having a cathode, and an anode spaced from the cathode. A relatively high voltage potential is applied between the anode and the cathode, and the cathode provides an electron beam in response to the relatively high voltage potential. A control grid is spaced between the cathode and the anode, and is coupled to an input port adapted to receive the input signal. The input signal causes the control grid to density modulate the beam. The control grid is also coupled to a bias voltage source to preclude transmission of the electron beam during the negative half cycle of the input signal. A plurality of collector stages are provided with a respective electric potential thereto ranging between a potential of the cathode and a potential of the anode to efficiently collect the electrons of the beam after passing the anode. A first one of the collector stages is spaced from the anode opposite from the control grid and is further coupled to an output port to provide an amplified output signal therefrom. The respective electric potentials of the collector stages have corresponding voltage values such as to provide near-constant and high efficiency across a power range of the input signal.

    Abstract translation: 线性放大器包括具有阴极的电子枪组件和与阴极间隔开的阳极。 在阳极和阴极之间施加相当高的电压电位,并且阴极响应于相对高的电压电位而提供电子束。 控制栅极在阴极和阳极之间隔开,并且耦合到适于接收输入信号的输入端口。 输入信号使控制网格对光束进行浓度调制。 控制栅格还耦合到偏置电压源以阻止在输入信号的负半周期期间电子束的传输。 在多个集电极级之间设置有各自的电位,其范围在阴极的电位和阳极的电位之间,以在通过阳极之后有效地收集光束的电子。 收集器级中的第一级与控制栅极相反的阳极间隔开,并且还耦合到输出端口以从其提供放大的输出信号。 集电极级的相应电位具有相应的电压值,例如在输入信号的功率范围内提供接近恒定和高效率。

    Device for amplifying a high frequency signal
    3.
    发明申请
    Device for amplifying a high frequency signal 失效
    用于放大高频信号的装置

    公开(公告)号:US20040169554A1

    公开(公告)日:2004-09-02

    申请号:US10483682

    申请日:2004-01-13

    Inventor: Michel Langlois

    CPC classification number: H01J23/033 H01J25/04 H03F3/24 H03F2200/198

    Abstract: The invention pertains to an amplification device for a high-frequency signal. The invention is particularly adapted for the transmission of radiofrequency signals used for television or radio under frequency modulation. The amplification device for a high-frequency signal, comprises two amplification stages arranged in series, the first amplification stage being formed of a semiconductor preamplifier (200), the second amplification stage being formed of an electron tube (100) cooled by the circulation of a fluid, the electron tube (100) being arranged inside an enclosure (401) intended to receive it. The semiconductor preamplifier (200) is arranged in the enclosure (401), and the preamplifier (200) is cooled by the circulation of the fluid. The electron tube (100) comprises a collector (15) needing to be cooled by the circulation of the fluid, and the fluid circulates around a cooling circuit, in which circuit the collector (15) is connected in parallel with the preamplifier (200).

    Abstract translation: 本发明涉及用于高频信号的放大装置。 本发明特别适用于在频率调制下用于电视或无线电的射频信号的传输。 用于高频信号的放大装置包括串联布置的两个放大级,第一放大级由半导体前置放大器(200)形成,第二放大级由电子管(100)形成,该电子管通过循环冷却 流体,电子管(100)布置在旨在接收它的外壳(401)内。 半导体前置放大器(200)布置在外壳(401)中,前置放大器(200)通过流体的循环被冷却。 电子管(100)包括需要被流体的循环冷却的收集器(15),并且流体围绕冷却回路循环,在该回路中,集电器(15)与前置放大器(200)并联连接, 。

    Retarding electron beams in multiple electron beam pattern generation
    4.
    发明申请
    Retarding electron beams in multiple electron beam pattern generation 失效
    在多个电子束图案生成中阻止电子束

    公开(公告)号:US20040090194A1

    公开(公告)日:2004-05-13

    申请号:US10291292

    申请日:2002-11-08

    Inventor: Mark Alan Gesley

    CPC classification number: H01J37/3177 H01J2237/04756 H01J2237/31779

    Abstract: A multiple electron beam pattern generator includes a multiple electron beam source to generate a plurality of electron beams that are modulated according to pattern. An anode accelerates the electron beams, and then a beam retarding system generates a retarding electric potential about the electron beams to decrease the kinetic energy of the electron beams substantially near a substrate. A beam scanner scans the electron beams across the substrate. A substrate support supports the substrate, and a pattern is generated on the substrate.

    Abstract translation: 多电子束图案发生器包括多个电子束源,以产生根据图案被调制的多个电子束。 阳极加速电子束,然后光束延迟系统围绕电子束产生延迟电位,以降低基本上靠近衬底的电子束的动能。 光束扫描器扫描跨越衬底的电子束。 衬底支撑件支撑衬底,并且在衬底上产生图案。

    Inner conductor for a co-axial gyrotron with axial corrugations which are evenly distributed around the periphery
    5.
    发明申请
    Inner conductor for a co-axial gyrotron with axial corrugations which are evenly distributed around the periphery 失效
    具有均匀分布在周边的轴向波纹的同轴回旋加速器的内导体

    公开(公告)号:US20030146703A1

    公开(公告)日:2003-08-07

    申请号:US10367054

    申请日:2003-02-14

    Inventor: Olgierd Dumbrajs

    CPC classification number: H01J25/025 H01J23/54

    Abstract: In an inner conductor of a coaxial gyrotron, which inner conductor is disposed on the cathode of the gyrotron and includes an entrance funnel, a center part and an exit funnel, axial corrugations are formed in the conductor by axial grooves formed into its wall such that they begin at the end of the entrance funnel and have, in the center part, an increasing depths up to the exit funnel, in which the depth again becomes steadily smaller, the corrugations being evenly distributed about the inner circumference of the inner conductor.

    Abstract translation: 在同轴回旋加速器的内导体中,内导体设置在陀螺仪的阴极上并且包括入口漏斗,中心部分和出口漏斗,通过形成在其壁中的轴向凹槽在导体中形成轴向波纹,使得 它们在入口漏斗的末端开始,并且在中心部分具有越来越深的深度,其中深度再次变得越来越小,波纹均匀分布在内部导体的内圆周上。

    RF coil, shield and magnetic resonance imaging apparatus
    6.
    发明申请
    RF coil, shield and magnetic resonance imaging apparatus 失效
    射频线圈,屏蔽和磁共振成像设备

    公开(公告)号:US20010028222A1

    公开(公告)日:2001-10-11

    申请号:US09798868

    申请日:2001-03-01

    Inventor: Akira Nabetani

    CPC classification number: G01R33/3453

    Abstract: A TEM resonator RF coil with excellent operating characteristics comprising a plurality of ring segments on the orifice capable of being segmented by slits on the orifice are installed with a first conducting pattern connecting to the line element, a second conducting pattern disposed symmetrically on the left and right of the first conducting pattern, a capacitor connecting these conducting patterns, and a connection means spanning the adjacent ring segments and connecting the second conducting patterns.

    Abstract translation: 具有优异操作特性的TEM谐振器RF线圈​​,其包括孔口上的多个环形节段,能够由孔口上的狭缝分段,其具有连接到线路元件的第一导电图案,对称地布置在左侧上的第二导电图案, 第一导电图案的右侧,连接这些导电图案的电容器和跨越相邻环形部分并连接第二导电图案的连接装置。

    Linear-beam microwave tube
    7.
    发明申请
    Linear-beam microwave tube 有权
    线性束微波管

    公开(公告)号:US20030098655A1

    公开(公告)日:2003-05-29

    申请号:US10300821

    申请日:2002-11-21

    Inventor: Shintaro Arai

    CPC classification number: H01J23/033 H01J23/027 H01J2223/0275

    Abstract: A collector core of a microwave tube has an insulator and a radiator around a cylindrical outer peripheral portion thereof. The cylindrical insulator and radiator comprise a slit along a central axis of the collector core, respectively. These slits are arranged on mutually overlapped positions. Portions of the collector core corresponding to these slits are cut off so as to be flat or concave. These slits and the flat surface or the concave portion are arranged symmetrically in a section of the collector core.

    Abstract translation: 微波管的集电体芯具有绝缘体和围绕其圆柱形外周部的散热器。 圆柱形绝缘体和散热器分别包括沿收集器芯的中心轴线的狭缝。 这些狭缝布置在相互重叠的位置上。 对应于这些狭缝的集电芯的部分被切断以便是平的或凹的。 这些狭缝和平坦面或凹部在集电体芯的一部分中对称地配置。

    Vacuum electron device with a photonic bandgap structure and method of use thereof
    8.
    发明申请
    Vacuum electron device with a photonic bandgap structure and method of use thereof 失效
    具有光子带隙结构的真空电子器件及其使用方法

    公开(公告)号:US20020190655A1

    公开(公告)日:2002-12-19

    申请号:US10037661

    申请日:2002-01-04

    CPC classification number: H01J25/00 H01P7/00 H01P7/06

    Abstract: A vacuum electron device with a photonic bandgap structure that provides the ability to tune the behavior of the device to a particular mode of a plurality of modes of propagation. The photonic bandgap structure comprises a plurality of members, at least one of which is movable, and at least one of which is temperature controlled. The photonic bandgap structure makes possible the selection of one mode of propagation without the necessity to build structures having dimensions comparable to the wavelength of the propagation mode.

    Abstract translation: 具有光子带隙结构的真空电子器件,其提供将器件的行为调谐到多个传播模式的特定模式的能力。 光子带隙结构包括多个构件,其中至少一个是可移动的,其中至少一个是温度控制的。 光子带隙结构使得可以选择一种传播模式,而不需要构建具有与传播模式的波长相当的尺寸的结构。

    Mode converter and gyrotron tube provided with mode converter for converting mode of millimeter waves
    9.
    发明申请
    Mode converter and gyrotron tube provided with mode converter for converting mode of millimeter waves 失效
    模式转换器和陀螺仪管提供了用于转换毫米波模式的模式转换器

    公开(公告)号:US20020021095A1

    公开(公告)日:2002-02-21

    申请号:US09864883

    申请日:2001-05-25

    CPC classification number: H01J25/025 H01J23/40 H01P1/16

    Abstract: In a substantially circular waveguide constituting a mode converter in a gyrotron tube, there is a region whose transverse inner surface shape changes to a non-true circular shape from a true circular shape in a range of 0 mm to 5 mm toward a radiation aperture from the incident side. Therefore, an undesirable cavity resonator which causes parasitic oscillation can be prevented from being formed in the vicinity of an inlet of the mode converter. Therefore, the parasitic oscillation of the mode converter can be suppressed, and a conversion efficiency of the converter can be enhanced, because of the effective length of the mode converter can be enhanced in the limited actual length.

    Abstract translation: 在构成陀螺仪管中的模式转换器的大致圆形的波导中,存在一个区域,其横向内表面形状从0毫米至5毫米范围内的真圆形变为非真圆形,朝向辐射孔 事件方面。 因此,可以防止在模式转换器的入口附近形成引起寄生振荡的不期望的空腔谐振器。 因此,由于可以在有限的实际长度内提高模式转换器的有效长度,因此可以抑制模式转换器的寄生振荡,并且可以提高转换器的转换效率。

    Continuous wave electron-beam accelerator and continuous wave electron-beam accelerating method thereof
    10.
    发明申请
    Continuous wave electron-beam accelerator and continuous wave electron-beam accelerating method thereof 有权
    连续波电子束加速器及连续波电子束加速法

    公开(公告)号:US20020008450A1

    公开(公告)日:2002-01-24

    申请号:US09801046

    申请日:2001-03-08

    Inventor: Hirofumi Tanaka

    CPC classification number: H05H9/00 H01J2223/10

    Abstract: A continuous wave electron-beam accelerator that accelerates a continuous wave electron beam having a large average current includes an electron beam generator 11, an electron-beam accelerating unit 13 using a radio-frequency electric field having a frequency of approximately 500 MHz to accelerate an continuous wave electron beam, and electron-beam bending units 14, 15, 16 that are provided across the electron-beam accelerating unit and that bend the continuous wave electron beam a number of times. Each electron-beam bending unit includes divided magnets 15,16 having identical-polarity magnetic fields, and controls the continuous wave electron beam to pass through the electron-beam acceleration unit 13 a number of times on almost the same path.

    Abstract translation: 加速具有大平均电流的连续波电子束的连续波电子束加速器包括电子束发生器11,使用具有大约500MHz的频率的射频电场的电子束加速单元13,以加速 连续波电子束和电子束弯曲单元14,15,16,其设置在电子束加速单元两端并使连续波电子束弯曲多次。 每个电子束弯曲单元包括具有相同极性磁场的分割磁体15,16,并且控制连续波电子束在几乎相同的路径上多次通过电子束加速单元13。

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