Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes
    73.
    发明授权
    Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes 有权
    用于消除宽带行波管中反向波振荡的不对称慢波结构

    公开(公告)号:US09202660B2

    公开(公告)日:2015-12-01

    申请号:US13799953

    申请日:2013-03-13

    CPC classification number: H01J23/24 H01J23/30 H01J25/36 H01J25/44

    Abstract: In various embodiments, a traveling wave amplifier circuit is disclosed. The traveling wave amplifier circuit is configured to receive an RF wave and an electron beam. The traveling wave amplifier effects synchronized interaction between the RF wave and the electron beam. The traveling wave amplifier circuit comprises a waveguide. The waveguide comprises a plurality of asymmetric cells arranged periodically. The waveguide is configured to receive an electron beam. Each of the asymmetric cells comprises at least one asymmetrical structure within the asymmetric cell to modify the dispersion relation of the waveguide.

    Abstract translation: 在各种实施例中,公开了一种行波放大器电路。 行波放大器电路被配置为接收RF波和电子束。 行波放大器实现RF波和电子束之间的同步相互作用。 行波放大器电路包括波导。 波导包括周期性地布置的多个不对称单元。 波导被配置为接收电子束。 每个不对称单元包括不对称单元内的至少一个不对称结构,以修改波导的色散关系。

    Cathode driven crossed-field amplifier
    74.
    发明授权
    Cathode driven crossed-field amplifier 失效
    阴极驱动的交叉场放大器

    公开(公告)号:US4608520A

    公开(公告)日:1986-08-26

    申请号:US518719

    申请日:1983-07-29

    CPC classification number: H01J25/44

    Abstract: In a crossed-field amplifier tube, an input section of slow-wave circuit is part of the cathode electrode. An output section of slow-wave circuit is part of the anode electrode. The anode circuit is axially displaced from the cathode circuit in the direction of drift of the electron stream so that a non-propagating section of the anode faces at least a part of the propagating cathode circuit.

    Abstract translation: 在交叉场放大器管中,慢波电路的输入部分是阴极电极的一部分。 慢波电路的输出部分是阳极电极的一部分。 阳极电路沿着电子流的漂移方向从阴极电路轴向移位,使得阳极的非传播部分面向传播阴极电路的至少一部分。

    Impedance tapered dematron
    75.
    发明授权
    Impedance tapered dematron 失效
    阻抗锥形dematron

    公开(公告)号:US4376908A

    公开(公告)日:1983-03-15

    申请号:US220485

    申请日:1980-12-29

    Inventor: Edwin G. Chaffee

    CPC classification number: H01J23/24 H01J25/44

    Abstract: A crossed field amplifier including a linear, ladder type slow wave devicencluding an array of closely spaced parallel U-shaped rungs with a pair of oppositely wound helices running side-by-side inside said array, and a pair of trimmers running along each side of said array of rungs, the trimmer height at the input or cathode end of said slow wave structure being increased compared to its height for the remainder of said slow wave device.

    Abstract translation: 一种交叉场放大器,包括线性梯型慢波装置,其包括紧密间隔开的平行的U形梯级的阵列,所述阵列具有在所述阵列内并排运行的一对相对缠绕的螺旋,以及沿着每一侧延伸的一对修剪器 在所述梯级阵列中,所述慢波结构的输入端或阴极端的修整器高度相对于所述慢波器件的其余部分的高度而增加。

    High gain crossed field amplifier
    76.
    发明授权
    High gain crossed field amplifier 失效
    高增益交叉场放大器

    公开(公告)号:US4087718A

    公开(公告)日:1978-05-02

    申请号:US683990

    申请日:1976-05-06

    Inventor: George K. Farney

    CPC classification number: H01J25/44 H01J23/24

    Abstract: The allowable gain of a crossed-field amplifier tube is increased by tapering the slow-wave interaction circuit to a smaller spatial period in the direction of circuit power flow. Concurrent variation of the electron beam drift velocity by tapering the dc electric or magnetic field further improves the gain and efficiency.

    Abstract translation: 通过使慢波相互作用电路在电路功率流的方向上减小到较小的空间周期,增加了交叉场放大器管的允许增益。 通过逐渐减小直流电场或磁场,电子束漂移速度的并发变化进一步提高了增益和效率。

    M-type microwave signal delay tube
    77.
    发明授权
    M-type microwave signal delay tube 失效
    M型微波信号延时管

    公开(公告)号:US3863100A

    公开(公告)日:1975-01-28

    申请号:US71146968

    申请日:1968-03-06

    Applicant: US NAVY

    CPC classification number: H01J25/44

    Abstract: A microwave signal delay tube is disclosed of the so-called ''''Mtype'''' wherein the modulated electron beam sequentially travels around an inner and outer concentric, circular drift section in opposite directions. The electron beam reversal which takes place after the beam has traveled around one of these sections has the effect of averaging the velocity slip in the beam, brought about by the circular drift geometry of the tube.

    Abstract translation: 公开了所谓的“M型”的微波信号延迟管,其中调制的电子束在相反的方向上顺序地绕着内部和外部同心的圆形漂移部分行进。 在光束行进在这些部分中的一个之后发生的电子束反转具有由管的圆形漂移几何形状对光束中的速度滑移进行平均的效果。

    Microwave delay apparatus
    78.
    发明授权
    Microwave delay apparatus 失效
    MICROWAVE DELAY APPARATUS

    公开(公告)号:US3641388A

    公开(公告)日:1972-02-08

    申请号:US3641388D

    申请日:1965-10-05

    Applicant: US NAVY

    CPC classification number: H01J25/44

    Abstract: The microwave delay apparatus of this invention consists of an M-type travelling wave tube which employs a photocathode illuminated by a light beam amplitude modulated at the signal frequency as the apparatus for forming and injecting the modulated beam into the drift region. This arrangement permits a laminar beam filling the drift space to be launched into the interaction region where the crossed electric and magnetic fields occur. It eliminates the usual electron gun, its associated beam forming electrodes and the input coupler.

    Abstract translation: 本发明的微波延迟装置由M型行波管构成,该波导管使用由以信号频率调幅的光束照射的光电阴极作为用于将调制束形成并注入到漂移区域中的装置。 这种布置允许填充漂移空间的层流发射到发生交叉电场和磁场的相互作用区域中。 它消除了通常的电子枪,其相关联的波束形成电极和输入耦合器。

    Cathode secondary emitter for crossed-field tubes
    79.
    发明授权
    Cathode secondary emitter for crossed-field tubes 失效
    用于交叉现场管的CATHODE二次发射器

    公开(公告)号:US3596131A

    公开(公告)日:1971-07-27

    申请号:US3596131D

    申请日:1969-05-29

    Inventor: WILCZEK ANDREW S

    CPC classification number: H01J1/32 H01J25/44

    Abstract: In a crossed-field tube of the type employing a cathode secondary emitter, the secondary emission surface is corrugated with the corrugations being elongated generally in the direction of the secondary electron stream to increase the effective secondary electron emissive surface area of the cathode and to increase the secondary electron emission yield from the surface, whereby the current loading on the cathode is decreased in use.

    Self-modulating,partially reentrant crossed field amplifier
    80.
    发明授权
    Self-modulating,partially reentrant crossed field amplifier 失效
    自调制,部分雷电交叉现场放大器

    公开(公告)号:US3560867A

    公开(公告)日:1971-02-02

    申请号:US3560867D

    申请日:1969-04-22

    Inventor: HESS PHILIP N

    CPC classification number: H01J25/44 H03F3/54

    Abstract: A COLD CATHODE DISTRIBUTED EMISSION REENTRANT TYPE CROSSED FIELD AMPLIFIER IS PROVIDED WHICH POSSESSES ELECTRICAL EFFICIENCES APPROACHING THAT AVAILABLE IN THE REENTRANT TYPE CROSSED FIELD AMPLIFIERS OF THE PRIOR AT BUT WHICH FEATURES THE SIMPLICITY OF THE NON-REENTRANT TYPE CROSSED FIELD AMPLIFIER. A CIRCULAR CONFIGURATION IS USED FOR THE TUBE? ONE IN WHICH THE BEGINNING AND END OF THE INTERACTION REGION IS CONNECTED WITH THE DRIFT SPACE REGION, SO AS TO FORM A COMPLETE ANNULAR PASSAGE ABOUT THE SOLE AND CATHODE. THE MAGNETIC STRUCTURE PRODUCES A MAGNETIC FIELD AT THE PROGRAMMED LEVEL, WHICH MAY BE CONSTANT, IN THE INTERACTION REGION AND IN ADDITION PROVIDES A VARIATION IN THE DRIFT SPACE. AT THE ENTRANCE TO THE DRIFT SPACE AND MAGNETIC INTENSITY DECREASES AS A FUNCTION OF POSITION ALONG THE LENGTH OF THE DRIFT SPACE FROM THE PROGRAMMED LEVEL, GRADUALLY, OVER A PREDETERMINED LENGTH OF THE DRIFT SPACE TO A SECOND LOWER PREDETERMINED INTENSITY. ALONG THE REMAINING LENGTH OF THE DRIFT SPACE THE FIELD INTENSITY INCREASES IN LEVEL UNTIL AT THE END OF THE DRIFT SPACE, COINCIDENT WITH THE BEGINNING OF THE INTER-

    ACTION REGION, THE MAGNETIC FIELD INTENSITY IS AGAIN AT THE PROGRAMMED LEVEL. THE TAPERING OF THE MAGNETIC FIELD IN THE DRIFT SPACE REGION IS DESIGNED SO THAT IT DIVERTS SIGNIFICANT AMOUNTS OF THOSE ELECTRONS THAT PASS THROUGH THE INTERACTION REGION AND ENTER THE DRIFT SPACE REGION. HENCE, THE REMAINING ELECTRONS WHICH REENTER THE INTERACTION REGION ARE INSUFFICIENT IN QUANTITY OR ENERGY TO CAUSE SELF-OSCILLATION AFTER THE RF-DRIVE SIGNAL HAS BEEN REMOVED.

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