公开(公告)号：US20190202000A1

公开(公告)日：2019-07-04

申请号：US16322594

申请日：2017-08-04

Applicant: Consorzio Di Ricerca Hypatia

Inventor： Gildo Di Domenico ,  Flavio Lucibello ,  Lorenzo Scatena ,  Mariano Zarcone

IPC: B23K15/00 ,  B33Y30/00 ,  B23K15/02 ,  H01J37/147 ,  H01J37/12 ,  H01J25/10 ,  H01J37/06 ,  H01J37/315 ,  H01J37/301

CPC classification number: B23K15/0086 ,  B22F3/1055 ,  B22F2003/1056 ,  B23K15/0026 ,  B23K15/02 ,  B33Y30/00 ,  H01J25/02 ,  H01J25/04 ,  H01J25/10 ,  H01J25/36 ,  H01J25/42 ,  H01J37/06 ,  H01J37/12 ,  H01J37/147 ,  H01J37/301 ,  H01J37/315 ,  H01J37/3178 ,  H01J2237/0473 ,  H01J2237/3104 ,  H01J2237/3128 ,  H03B9/04 ,  Y02P10/295

Abstract: An electron beam 3D printing machine (1), comprising a chamber (2) for generating and accelerating an electron beam and an operating chamber (3) in which a metal powder is melted, with the consequent production of a three-dimensional product. The chamber (2) for generating and accelerating an electron beam houses means (4) for generating an electron beam and means (6) for accelerating the generated electron beam, while the operating chamber (3) houses at least one platform (16) for depositing the metal powder, metal powder handling means (18) and electron beam deflection means (15). The accelerator means for the generated electron beam comprise a series of resonant cavities fed with an alternating signal.

公开(公告)号：US09697978B2

公开(公告)日：2017-07-04

申请号：US15181239

申请日：2016-06-13

Applicant: The Board of Trustees of the Leland Stanford Junior University

Inventor： Aaron Jensen

IPC: H01J25/10 ,  H01J23/38 ,  H01J23/207

CPC classification number: H01J25/10 ,  H01J23/207 ,  H01J23/38

Abstract: A multi-frequency klystron has an electron gun which generates a beam, a circuit of bunch-align-collect (BAC) tuned cavities that bunch the beam and amplify an RF signal, a collector where the beam is collected and dumped, and a standard output cavity and waveguide coupled to a window to output RF power at a fundamental mode to an external load. In addition, the klystron has additional bunch-align-collect (BAC) cavities tuned to a higher harmonic frequency, and a harmonic output cavity and waveguide coupled via a window to an additional external load.

公开(公告)号：US09673015B2

公开(公告)日：2017-06-06

申请号：US14846151

申请日：2015-09-04

Applicant: OMEGA-P, INC. ,  YALE UNIVERSITY

Inventor： Yong Jiang ,  Vladimir Teryaev ,  Jay Hirshfield

IPC: H01J23/027 ,  H01J25/10

CPC classification number: H01J23/027 ,  H01J23/0275 ,  H01J25/10

Abstract: A depressed beam collector and an RF source comprising a depressed beam collector. The RF source may include, e.g., a multi-beam klystron, a single beam klystron, or other RF sources having an electron gun. The beam collector collects spent electrons from the electron gun and comprises a grounded portion configured to collect a portion of electrons entering the collector and a biased portion configured to collect another portion of the electrons entering the collector and having a depressed energy.

公开(公告)号：US20160071681A1

公开(公告)日：2016-03-10

申请号：US14846151

申请日：2015-09-04

Applicant: OMEGA P, INC.

Inventor： Yong JIANG ,  Vladimir Teryaev ,  Jay Hirshfield

IPC: H01J23/027 ,  H01J25/10

CPC classification number: H01J23/027 ,  H01J23/0275 ,  H01J25/10

Abstract: A depressed beam collector and an RF source comprising a depressed beam collector. The RF source may include, e.g., a multi-beam klystron, a single beam klystron, or other RF sources having an electron gun. The beam collector collects spent electrons from the electron gun and comprises a grounded portion configured to collect a portion of electrons entering the collector and a biased portion configured to collect another portion of the electrons entering the collector and having a depressed energy.

Abstract translation: 凹陷光束收集器和包括凹陷光束收集器的RF源。 RF源可以包括例如多波束速调管，单波束速调管或具有电子枪的其它RF源。 光束收集器收集来自电子枪的废电子，并且包括被配置为收集进入集电极的电子的一部分的接地部分和被配置为收集进入收集器的另一部分电子并且具有下降能量的偏置部分。

公开(公告)号：US20150060052A1

公开(公告)日：2015-03-05

申请号：US14476599

申请日：2014-09-03

Applicant: Qmast LLC

Inventor： George Caryotakis

IPC: H01J23/087 ,  E21B43/24 ,  H01J23/12 ,  H01J23/54 ,  H01J25/18 ,  H01J23/38

CPC classification number: H01J23/087 ,  E21B43/2401 ,  H01J23/12 ,  H01J23/38 ,  H01J23/54 ,  H01J25/10 ,  H01J25/18

Abstract: A microwave energy tool including a sheet beam klystron that includes a tube body for carrying an electron sheet beam that has a plurality of cavities and a magnetic solenoid wound directly on the tube body.

Abstract translation: 一种微波能量工具，其包括片材速调管，其包括用于承载具有多个空腔的电子束束的管体和直接卷绕在管体上的电磁线圈。

公开(公告)号：US08907297B2

公开(公告)日：2014-12-09

申请号：US13691721

申请日：2012-11-30

Applicant: FAR-TECH, Inc.

Inventor： Xiangyun Chang

IPC: H01J29/00

CPC classification number: H01J1/34 ,  H01J25/10 ,  H05H2007/084

Abstract: A photocathode system includes a plurality of photocathodes, and at least one combining device. The photocathodes have individually adjustable voltages, and each photocathode generates an individual electron bunch at an emission period. The combining device combines the individual electron bunches, generated at each emission period, into a combined bunch along a combined axis. The timing of the individual electron bunches is independently adjustable, so that an electron bunch with a lower energy arrives at the combined axis earlier in time compared to another electron bunch with a higher energy, thereby allowing the combined beam of electron bunches to be longitudinally compressed. The photocathodes may be distributed along a 1D column, or a 2D array, or a 3D array, or any arbitrary configuration. A linac is located near a longitudinal focusing point to boost beam energy and therefore freeze bunch length and emittance.

Abstract translation: 光电阴极系统包括多个光电阴极和至少一个组合装置。 光电阴极具有可单独调节的电压，并且每个光电阴极在发射周期产生单独的电子束。 组合装置将在每个发射周期产生的各个电子束组合成沿着组合轴的组合束。 各个电子束的时序是独立可调的，因此具有较低能量的电子束与具有较高能量的另一个电子束相比较早地到达组合轴，从而允许组合的电子束束被纵向压缩 。 光电阴极可以沿着1D列，2D阵列或3D阵列或任何任意配置分布。 直线加速器位于纵向聚焦点附近，以提高光束能量，从而冻结束长度和发射度。

公开(公告)号：US08823263B2

公开(公告)日：2014-09-02

申请号：US13120069

申请日：2009-08-24

Applicant: Frédéric Andre

Inventor： Frédéric Andre

IPC: H01J25/16

CPC classification number: H01J25/34 ,  H01J23/02 ,  H01J23/34 ,  H01J25/10

Abstract: An electron tube includes: a microwave structure having an evacuated envelope including two ends, the microwave structure being at a reference potential, an electron gun including a cathode for providing a beam of electrons, along an axis, at one end of the evacuated envelope, an electron collector for gathering electrons of the beam at the other end of the evacuated envelope, and at least one high-voltage power supply for applying to the cathode a negative high-voltage potential with respect to the reference potential. The tube includes between the cathode and the microwave structure a device for extracting the positive ions including at least one electrode carried to a negative potential with respect to the reference potential so as to extract positive ions from the evacuated envelope, these positive ions being produced by the impacting of the electrons of the electron beam with molecules of residual gas in the evacuated envelope. The invention has application to microwave electron tubes, klystron TWT etc. using a cylindrical electron beam.

Abstract translation: 电子管包括：微波结构，其具有包括两端的真空外壳，所述微波结构处于参考电位;电子枪，包括用于在所述抽真空的外壳的一端沿轴线提供电子束的阴极， 用于在所述抽真空的外壳的另一端收集所述光束的电子的电子收集器，以及用于向所述阴极施加相对于所述参考电位的负高电压电位的至少一个高压电源。 该管在阴极和微波结构之间包括用于提取正离子的装置，其包括相对于参考电位携带到负电位的至少一个电极，以从抽真空的外壳中提取正离子，这些正离子由 电子束的电子与抽空的外壳中剩余气体分子的碰撞。 本发明适用于使用圆柱形电子束的微波电子管，速调管TWT等。

公开(公告)号：US08559894B2

公开(公告)日：2013-10-15

申请号：US13223942

申请日：2011-09-01

Applicant: William H. Walker

Inventor： William H. Walker

IPC: H04B1/02

CPC classification number: H01J25/10

Abstract: A Klystron transmitter for use in weather radar systems has a transmitter module for operating with any of various Klystron tubes designed for different frequency ranges, such as a low S-Band range, a high S-Band range, and a C-Band range. Each of the Klystron tubes is designed to have similar operating characteristics, such as output power and operating voltages. In addition, the transmitter module has driver circuitry for driving the Klystron tube of the transmitter, and such driver circuitry is operable over a wide frequency range so that the same driver circuitry can be used for any of the contemplated bands. Accordingly, the same core transmitter circuitry can be used for any of the Klystron tubes allowing a manufacturer to control which of the contemplated bands is implemented by selecting the appropriate Klystron tube and stable local oscillator (STALO) for the desired band. By using the same core design of the transmitter circuitry for all of the Klystron tubes, the overall manufacturing and implementation costs of Klystron transmitters can be significantly reduced.

Abstract translation: 用于气象雷达系统的速调管发射器具有一个发射模块，用于与各种各样的速调管配合使用，用于不同的频率范围，例如低S波段范围，高S波段范围和C波段范围。 每个速调管被设计成具有类似的操作特性，例如输出功率和工作电压。 此外，发射机模块具有用于驱动发射机的速调管的驱动器电路，并且这种驱动器电路可在宽的频率范围内操作，使得相同的驱动器电路可用于任何预期的频带。 因此，相同的核心发射机电路可用于任何速调管，允许制造商通过为所需频带选择合适的速调管和稳定本地振荡器（STALO）来控制所预期频带中的哪一个。 通过使用与所有速调管相同的发射器电路的核心设计，可以显着降低速调管发射器的总体制造和实施成本。

公开(公告)号：US20130055552A1

公开(公告)日：2013-03-07

申请号：US13223942

申请日：2011-09-01

Applicant: William H. Walker

Inventor： William H. Walker

IPC: H05K13/00

CPC classification number: H01J25/10

Abstract: A Klystron transmitter for use in weather radar systems has a transmitter module for operating with any of various Klystron tubes designed for different frequency ranges, such as a low S-Band range, a high S-Band range, and a C-Band range. Each of the Klystron tubes is designed to have similar operating characteristics, such as output power and operating voltages. In addition, the transmitter module has driver circuitry for driving the Klystron tube of the transmitter, and such driver circuitry is operable over a wide frequency range so that the same driver circuitry can be used for any of the contemplated bands. Accordingly, the same core transmitter circuitry can be used for any of the Klystron tubes allowing a manufacturer to control which of the contemplated bands is implemented by selecting the appropriate Klystron tube and stable local oscillator (STALO) for the desired band. By using the same core design of the transmitter circuitry for all of the Klystron tubes, the overall manufacturing and implementation costs of Klystron transmitters can be significantly reduced.

Abstract translation: 用于气象雷达系统的速调管发射器具有一个发射模块，用于与各种各样的速调管配合使用，用于不同的频率范围，例如低S波段范围，高S波段范围和C波段范围。 每个速调管被设计成具有类似的操作特性，例如输出功率和工作电压。 此外，发射机模块具有用于驱动发射机的速调管的驱动器电路，并且这种驱动器电路可在宽的频率范围内操作，使得相同的驱动器电路可用于任何预期的频带。 因此，相同的核心发射机电路可用于任何速调管，允许制造商通过为所需频带选择合适的速调管和稳定本地振荡器（STALO）来控制所预期频带中的哪一个。 通过使用与所有速调管相同的发射器电路的核心设计，可以显着降低速调管发射器的总体制造和实施成本。

公开(公告)号：US07446478B2

公开(公告)日：2008-11-04

申请号：US10583026

申请日：2003-12-19

Applicant: Igor Syratchev

Inventor： Igor Syratchev

IPC: H01J25/10 ,  H03B9/04

CPC classification number: H01J25/10 ,  H01J23/36

Abstract: A klystron has a plurality of electron beam paths and plural damped disc-shaped cavities. The plurality of electron beam paths cut the cavities and the Klystron amplifier further comprises an annular input cavity and an annular output cavity disposed around the substantially circular external periphery of respective disc-shaped cavities, and in communication with it. The output cavity is arranged to receive RF power from the electron beams, wherein the cavities are arranged to support one of a single resonant rotating wave in a whispering-gallery mode, and a single resonant standing wave in a whispering-gallery mode.

Abstract translation: 速调管具有多个电子束路径和多个阻尼的盘形空腔。 多个电子束路径切割空腔，而速调管放大器进一步包括环形输入腔和环形输出腔，环形输出腔设置在相应盘形空腔的基本上圆形的外周周围并与其相连通。 输出腔被布置成从电子束接收RF功率，其中空腔被布置成以耳语 - 画廊模式支持单个谐振旋转波中的一个，并且以耳语廊模式中的单个谐振驻波。