公开(公告)号：US2680823A

公开(公告)日：1954-06-08

申请号：US17170650

申请日：1950-07-01

Applicant: CSF

Inventor： OSCAR DOHLER ,  ALFRED LERBS

IPC: H01J25/42 ,  H01J25/44

CPC classification number: H01J25/44 ,  H01J25/42

公开(公告)号：US20180337016A1

公开(公告)日：2018-11-22

申请号：US15777977

申请日：2016-12-14

Applicant: NEC Network and Sensor Systems, Ltd.

Inventor： Norio MASUDA ,  Takashi NAKANO

IPC: H01J23/24 ,  H01J25/42 ,  H01P3/123 ,  H01P11/00

CPC classification number: H01J23/24 ,  H01J23/28 ,  H01J25/42 ,  H01P3/123 ,  H01P11/002

Abstract: Provided are a slow wave circuit and a traveling wave tube suitable for an increase in fineness with regard to processing beam holes, and suitable for higher frequencies. A slow wave circuit (10) includes a meandering waveguide (1) and a beam hole (2) that pierces the meandering waveguide (1), and the cross-section of the beam hole (2) in the direction orthogonal to the long direction is in the shape of a polygon having a larger number of sides than a quadrilateral.

公开(公告)号：US09147549B2

公开(公告)日：2015-09-29

申请号：US13424460

申请日：2012-03-20

Applicant: Michael L. Tracy

Inventor： Michael L. Tracy

IPC: H01J25/42 ,  H01J23/24

CPC classification number: H01J25/42 ,  H01J23/24

Abstract: Various crossed-field amplifiers (CFAs) are disclosed herein. In one embodiment, the geometry of the cathode and/or the anode reduces the velocity of the electrons as they travel near the anode drift block to increase the distribution of the electrons in the drift gap. In another embodiment, an abrupt geometric change to the cathode at the beginning or the end of the anode drift block can disperse the electrons, thereby increasing the rate of mixing and diffusion. By increasing the distribution of the electrons, the peak amplitude of spurious emissions produced by a CFA can be reduced.

Abstract translation: 本文公开了各种交叉场放大器（CFA）。 在一个实施例中，阴极和/或阳极的几何形状降低了电子在阳极漂移块附近行进时的速度，以增加漂移间隙中电子的分布。 在另一个实施例中，在阳极漂移块的开始或结束处对阴极的突然几何变化可以分散电子，从而增加混合和扩散的速率。 通过增加电子的分布，可以减少由CFA产生的杂散发射的峰值振幅。

公开(公告)号：US5874806A

公开(公告)日：1999-02-23

申请号：US725121

申请日：1996-10-02

Applicant: Richard J. Pasco ,  Chris L. Wheeland

Inventor： Richard J. Pasco ,  Chris L. Wheeland

IPC: H01J23/02 ,  H01J25/42

CPC classification number: H01J25/42 ,  H01J23/02

Abstract: A crossed-field amplifier is provided having a cathode structure with an emitting surface which emits secondary electrons upon impingement of priming electrons, an anode vane structure surrounding the cathode and a signal input port located adjacent the anode vanes. A secondary emission material is disposed in an area proximate the signal input port for providing priming electrons in the interaction region of the amplifier. The RF input signal causes the secondary emission material to emit priming electrons for use by the cathode structure. The creation of priming electrons in the interaction area reduces irregular start-up or "jitter" typically experienced with the amplifier at low pulse repetition frequencies.

Abstract translation: 提供了具有阴极结构的交叉场放大器，该阴极结构具有在引发电子的冲击时发射二次电子的发射表面，围绕阴极的阳极叶片结构和位于阳极叶片附近的信号输入端口。 二次发射材料设置在靠近信号输入端口的区域中，用于在放大器的相互作用区域中提供引发电子。 RF输入信号使二次发射材料发射引发电子以供阴极结构使用。 在相互作用区域中产生引发电子减少了在低脉冲重复频率下放大器通常经历的不规则启动或“抖动”。

公开(公告)号：US5280218A

公开(公告)日：1994-01-18

申请号：US764604

申请日：1991-09-24

Applicant: Burton H. Smith

Inventor： Burton H. Smith

IPC: H01J23/075 ,  H01J23/04 ,  H01J25/42 ,  H01J25/50

CPC classification number: H01J23/075

Abstract: A cathode of a crossed field device includes a first electrode and a second electrode disposed about and dielectrically spaced from the first electrode. In a preferred embodiment the electrode comprises a pair of electrodes, a first one of the pair being a masking electrode disposed about and dielectrically spaced from the first electrode and a second one of the pair being an emitter electrode disposed about and dielectrically spaced from the masking electrode.

Abstract translation: 交叉场设备的阴极包括第一电极和设置在第一电极周围并且与第一电极介电间隔开的第二电极。 在一个优选实施例中，电极包括一对电极，该对中的第一个是与第一电极周围设置并且与第一电极介电间隔开的掩模电极，并且该对电极中的第二个电极是布置在掩模周围并与之相互间隔开的发射电极 电极。

公开(公告)号：US4087718A

公开(公告)日：1978-05-02

申请号：US683990

申请日：1976-05-06

Applicant: George K. Farney

Inventor： George K. Farney

IPC: H01J23/10 ,  H01J23/24 ,  H01J25/42 ,  H01J25/44 ,  H01J25/50 ,  H01J25/34

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。

公开(公告)号：US3982152A

公开(公告)日：1976-09-21

申请号：US526651

申请日：1974-11-25

Applicant: William A. Smith

Inventor： William A. Smith

IPC: H01J25/42 ,  H01J25/34

CPC classification number: H01J25/42

Abstract: A crossed-field device having a plurality of slow wave energy propagating structures, each with an associated cathode, requires relatively low voltage for operation to provide a high power output. Electron beam current control is achieved by means of RF drive signals. Periodic permanent magnet focusing is utilized.

Abstract translation: 具有多个具有相关阴极的慢波能量传播结构的交叉场设备需要相对较低的电压来进行操作以提供高功率输出。 电子束电流控制通过RF驱动信号实现。 使用周期性永久磁铁聚焦。

公开(公告)号：US3593057A

公开(公告)日：1971-07-13

申请号：US3593057D

申请日：1967-08-31

Applicant: GEORGE BERSTEIN ,  HUNTER L MCDOWELL

Inventor： BERSTEIN GEORGE ,  MCDOWELL HUNTER L

IPC: H01J25/42 ,  H01J25/50 ,  H01J25/58

CPC classification number: H01J25/42

Abstract: An injected beam crossed-field amplifier is disclosed. The crossed-field tube includes a cylindrical nonemitting cathode sole electrode structure surrounded by a concentrically disposed slow wave anode circuit to define a magnetron-type interaction region in the annular space therebetween. An electron gun assembly is disposed at one end of the magnetron interaction region for injecting a beam of electrons into the magnetron interaction region axially thereof. A beam collector structure is disposed for collecting the electron beam after passage thereof through the magnetron interaction region. Radio frequency wave energy to be amplified is applied to the annular slow wave circuit, such circuit including a circuit sever to prevent reentrance of the wave energy on the circuit and to provide a drift space for debunching of the reentrant electron beam. By passing the electron beam through the magnetron interaction region to a collector structure, the dynamic range of the amplifier is extended down well into the low input signal regime, thereby providing an extremely wide dynamic range for the amplifier.

公开(公告)号：US3521115A

公开(公告)日：1970-07-21

申请号：US3521115D

申请日：1967-12-07

Applicant: SFD LAB INC

Inventor： MCDOWELL HUNTER L

IPC: H01J23/24 ,  H01J23/36 ,  H01J23/48 ,  H01J25/42 ,  H01P5/02 ,  H01J25/36 ,  H03H7/38

CPC classification number: H01P5/02 ,  H01J23/24 ,  H01J23/36 ,  H01J23/48 ,  H01J25/42

公开(公告)号：US3501376A

公开(公告)日：1970-03-17

申请号：US3501376D

申请日：1967-07-21

Applicant: CONSUMERS POWER CO

Inventor： DOW WILLIAM G ,  ROZIAN IRVING W

IPC: H01J25/42 ,  H05H1/16 ,  G21B1/00 ,  H05H1/00

CPC classification number: H01J25/42 ,  H05H1/16