公开(公告)号：US2791718A

公开(公告)日：1957-05-07

申请号：US57991256

申请日：1956-04-23

Applicant: BELL TELEPHONE LABOR INC

Inventor： GLASS MYRON S

IPC: H01J3/02 ,  H01J23/08 ,  H01J23/087 ,  H01J25/34

CPC classification number: H01J25/34 ,  H01J3/029 ,  H01J23/08 ,  H01J23/087

公开(公告)号：US316374A

公开(公告)日：1885-04-21

申请号：US316374D

IPC: H01J23/087

CPC classification number: H01J23/087

公开(公告)号：US11798770B2

公开(公告)日：2023-10-24

申请号：US17779342

申请日：2020-12-01

Applicant: NEC NETWORK AND SENSOR SYSTEMS, LTD.

Inventor： Tetsuo Machida

IPC: H01J23/087 ,  H01J23/06 ,  H01J23/027

CPC classification number: H01J23/087 ,  H01J23/027 ,  H01J23/06

Abstract: A microwave tube includes an electron gun that emits an electron beam; a magnetic circuit that focuses the electron beam emitted from the electron gun; a collector that captures the electron beam that has passed through the magnetic circuit; a high frequency circuit that is spirally arranged around the electron beam focused by the magnetic circuit and that transmits a high frequency; and a magnetic body part arranged around the electron gun so as to be movable in an emission direction of the electron beam. A high frequency output from the high frequency circuit is controlled to be constant by moving the magnetic body part in an emission direction of the electron beam.

公开(公告)号：US07471053B2

公开(公告)日：2008-12-30

申请号：US11819638

申请日：2007-06-28

Applicant: Setsuo Miyake

Inventor： Setsuo Miyake

IPC: H05H7/00

CPC classification number: H01J23/087 ,  H01J23/06 ,  H01J25/10

Abstract: The present invention provides a multi-beam klystron apparatus. In the above-described multi-beam klystron apparatus, the magnetic field generating element of the electron-gun-unit-side magnetic field generating unit is disposed around the electron gun unit, and a plurality of magnetic gaps are provided in the inner peripheral surface of the magnetic pole, which covers the magnetic field generating element, in the direction of travel of the electron beams. Therefore, lines of magnetic force, which are parallel to the center axis of the radio-frequency interaction unit, can be generated. Thus, even the electron beam, which is generated from the location apart from the center axis of the electron gun unit, can be guided to the radio-frequency interaction unit in the same manner as in the location at the canter axis of the electron gun unit.

公开(公告)号：US20050167608A1

公开(公告)日：2005-08-04

申请号：US10996180

申请日：2004-11-22

Applicant: Mark Cattelino ,  Fred Friedlander

Inventor： Mark Cattelino ,  Fred Friedlander

IPC: H01J23/087 ,  G01K1/08 ,  H01J3/14 ,  H01J3/20 ,  H01J25/10 ,  H01J29/00 ,  H01J29/46 ,  H01J29/70

CPC classification number: H01J23/0876 ,  H01J3/20 ,  H01J23/087

Abstract: Axially symmetric magnetic fields are provided about the longitudinal axis of each beam of a multi-beam electron beam device. The magnetic field symmetry is independent of beam voltage, beam current and applied magnetic field strength. A flux equalizer assembly is disposed between the cathodes and the anodes and near the cathodes of a multi-beam electron beam device. The assembly includes a ferromagnetic flux plate completely contained within the magnetic focusing circuit of the device. The flux plate includes apertures for each beam of the multi-beam device. A flux equalization gap or gaps are disposed in the flux plate to provide a perturbation in the magnetic field in the flux plate which counters the asymmetry induced by the off-axis position of the beam. The gaps may be implemented in a number of ways all of which have the effect of producing a locally continuously varying reluctance that locally counters the magnetic field asymmetry. The flux equalizer assembly prevents or substantially reduces beam twist and maintains all of the electron beams of the device as linear beams.

公开(公告)号：US06856081B2

公开(公告)日：2005-02-15

申请号：US10192772

申请日：2002-07-09

Applicant: Mark J. Cattelino ,  Fred I. Friedlander

Inventor： Mark J. Cattelino ,  Fred I. Friedlander

IPC: H01J23/087 ,  G01K1/08 ,  H01J3/14 ,  H01J3/20 ,  H01J25/10 ,  H01J29/00 ,  H01J29/46 ,  H01J29/70

CPC classification number: H01J23/0876 ,  H01J3/20 ,  H01J23/087

Abstract: Axially symmetric magnetic fields are provided about the longitudinal axis of each beam of a multi-beam electron beam device. The magnetic field symmetry is independent of beam voltage, beam current and applied magnetic field strength. A flux equalizer assembly is disposed between the cathodes and the anodes and near the cathodes of a multi-beam electron beam device. The assembly includes a ferromagnetic flux plate completely contained within the magnetic focusing circuit of the device. The flux plate includes apertures for each beam of the multi-beam device. A flux equalization gap or gaps are disposed in the flux plate to provide a perturbation in the magnetic field in the flux plate which counters the asymmetry induced by the off-axis position of the beam. The gaps may be implemented in a number of ways all of which have the effect of producing a locally continuously varying reluctance that locally counters the magnetic field asymmetry. The flux equalizer assembly prevents or substantially reduces beam twist and maintains all of the electron beams of the device as linear beams.

Abstract translation: 围绕多光束电子束装置的每个光束的纵向轴线提供轴向对称的磁场。 磁场对称性与束电压，束电流和施加的磁场强度无关。 通量均衡器组件设置在阴极和阳极之间以及多束电子束装置的阴极附近。 组件包括完全包含在装置的磁聚焦电路内的铁磁通量板。 磁通板包括用于多光束装置的每个光束的孔。 磁通平衡间隙或间隙设置在磁通板中，以在磁通板中的磁场中产生扰动，其反映由波束的离轴位置引起的不对称性。 间隙可以以多​​种方式实现，其中所有这些都具有产生局部连续变化的磁阻的作用，其局部地反映磁场不对称性。 通量均衡器组件防止或基本上减少光束扭曲，并将器件的所有电子束保持为线性光束。

公开(公告)号：US06447355B1

公开(公告)日：2002-09-10

申请号：US09466478

申请日：1999-12-17

Applicant: Eiichirou Uda ,  Toshiharu Higuchi ,  Osamu Nakamura ,  Kiyomi Koyama ,  Sadao Matsumoto ,  Yoshiaki Ouchi ,  Kazuo Kobayashi ,  Takashi Sudo ,  Katsuhisa Homma

Inventor： Eiichirou Uda ,  Toshiharu Higuchi ,  Osamu Nakamura ,  Kiyomi Koyama ,  Sadao Matsumoto ,  Yoshiaki Ouchi ,  Kazuo Kobayashi ,  Takashi Sudo ,  Katsuhisa Homma

IPC: H01J114

CPC classification number: H01J23/087 ,  H01J1/28 ,  H01J9/042 ,  H01J23/04 ,  H01J2223/04

Abstract: There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an average particle diameter smaller than an average particle diameter of the large particle diameter low pore region and a porosity higher than a porosity of the large particle diameter low porosity region, the impregnated-type cathode being impregnated with an electron emission substance.

Abstract translation: 提供了一种浸渍型阴极基板，其包括大粒径低孔隙率区域和小粒径高孔隙率区域，该区域设置在大粒径低孔隙率区域的电子发射表面的一侧，并且具有平均粒径 小于大粒径低孔区域的平均粒径，孔隙率高于大粒径低孔隙率区域的孔隙率，浸渍型阴极浸渍有电子发射物质。

公开(公告)号：US5736820A

公开(公告)日：1998-04-07

申请号：US518225

申请日：1995-08-23

Applicant: Steven Bardell

Inventor： Steven Bardell

IPC: H01J23/087 ,  H01J25/04 ,  H01J25/10

CPC classification number: H01J25/04 ,  H01J23/087 ,  H01J23/0876 ,  H01J2223/20 ,  H01J2223/40

Abstract: In an output resonant cavity used with a linear electron beam tube such as an IOT, magnetic material is mounted on walls of the cavity and defines annular channels within which coils are located to provide focusing of an electron beam travelling along the axis of a tube located in apertures in the cavity walls. An inner rim locates the electron beam tube with respect to the cavity.

Abstract translation: 在与诸如IOT的线性电子束管一起使用的输出谐振腔中，磁性材料安装在空腔的壁上，并且限定了环形通道，线圈位于该环形通道内，以提供沿着位于管的轴的轴线上行进的电子束的聚焦 在腔壁中的孔中。 内边缘相对于空腔定位电子束管。

公开(公告)号：US5345465A

公开(公告)日：1994-09-06

申请号：US926294

申请日：1992-08-10

Applicant: John T. Bahns

Inventor： John T. Bahns

IPC: H01J7/00 ,  H01J23/087 ,  H01J61/10 ,  H01S3/097 ,  H01S3/0971 ,  H05H1/16 ,  H01S3/094 ,  H01J7/24

CPC classification number: H05H1/16 ,  H01J23/087 ,  H01J61/106 ,  H01J7/00 ,  H01S3/097 ,  H01S3/09716

Abstract: A device for generating and guiding an electric discharge current including a first electrode, second electrode and a material arranged between the first and second electrode. The device uses a laser for generating photons having energies equal to the energy between two excited electronic states of the material. The photons fill a region of the material from the first electrode through the material to the second electrode ionizing the region of the material between the first and second electrodes. A voltage generating unit connected to the first and second electrodes applies a voltage between the first and second electrodes thereby generating the electric discharge which follows an ionized path in the region between the first and second electrodes.

Abstract translation: 一种用于产生和引导包括第一电极，第二电极和布置在第一和第二电极之间的材料的放电电流的装置。 该装置使用激光器来产生具有等于材料的两个激发电子状态之间的能量的能量的光子。 光子将材料的区域从第一电极通过材料填充到第二电极，从而电离第一和第二电极之间的材料区域。 连接到第一和第二电极的电压产生单元在第一和第二电极之间施加电压，从而在第一和第二电极之间的区域中产生遵循电离路径的放电。

公开(公告)号：US4555646A

公开(公告)日：1985-11-26

申请号：US587837

申请日：1984-03-12

Applicant: George V. Miram ,  Yosuke M. Mizuhara

Inventor： George V. Miram ,  Yosuke M. Mizuhara

IPC: H01J23/065 ,  H01J23/087 ,  H01J23/08

CPC classification number: H01J23/065 ,  H01J23/087

Abstract: A permanent-magnet-focused linear-beam high power millimeter-wave tube is externally adjustable for optimum electron beam optics during initial tube operation. The adjustment is made possible by providing an enlarged cavity within the cathode polepiece within which is housed a confined-flow magnetically-focused electron gun, and a cylindrical insert of magnetic material axially symmetrically disposed about the gun and in spaced relationship to and adjacent the gun insulator envelope. The insert may comprise iron or a radially magnetized permanent magnet, either alone or in combination, and more than one insert of magnetic material may be concentrically employed. In this manner, and by movement of the insert axially within the cavity toward and away from the gun, a finely controllable smooth adjustment of the beam diameter in the beam-microwave interaction region of the tube is effected over a wide range during initial operation. Substantially only the magnetic field in the vicinity of the gun is affected, and essentially no scalloping degradation of the beam in the interaction region is observed.

Abstract translation: 永久磁铁聚焦的线性束高功率毫米波管可以在外部调节，以在初始管操作期间实现最佳电子束光学。 通过在阴极端子内提供放大的空腔，其中容纳有限流动的聚焦电子枪和磁性材料的圆柱形插入物，可以通过在枪周围对称地设置并与枪相隔并且相邻的枪 绝缘体外壳。 插入件可以单独地或组合地包括铁或径向磁化的永磁体，并且可以同心地使用多于一个的磁性材料插入件。 以这种方式，并且通过插入件在空腔内朝向和远离枪的轴向移动，在初始操作期间在宽的范围内实现在管的束 - 微波相互作用区域中的光束直径的精细可控的平滑调节。 基本上只有枪附近的磁场受到影响，并且基本上没有观察到相互作用区域中的光束的扇叶退化。