公开(公告)号：US2828434A

公开(公告)日：1958-03-25

申请号：US38794553

申请日：1953-10-23

Applicant: INT STANDARD ELECTRIC CORP

Inventor： WERNER KLEIN ,  WALTER FRIZ

IPC: H01J23/00 ,  H01J23/087 ,  H01J29/54

CPC classification number: H01J23/00 ,  H01J23/087 ,  H01J29/54

公开(公告)号：US2822500A

公开(公告)日：1958-02-04

申请号：US31806052

申请日：1952-10-31

Applicant: ITT

Inventor： BRYANT JOHN H

IPC: H01J23/065 ,  H01J23/083 ,  H01J23/087 ,  H01J23/26 ,  H01J23/30 ,  H01J23/42 ,  H01J23/50 ,  H01J25/38 ,  H01P5/08 ,  H01Q11/08 ,  H03C3/30 ,  H03H2/00 ,  H04M5/04 ,  H04M19/02 ,  H04Q3/00

CPC classification number: H03C3/30 ,  H01J23/065 ,  H01J23/083 ,  H01J23/087 ,  H01J23/0876 ,  H01J23/26 ,  H01J23/30 ,  H01J23/42 ,  H01J23/50 ,  H01J25/38 ,  H01P5/08 ,  H01Q11/08 ,  H03H2/006 ,  H04M5/04 ,  H04M19/02 ,  H04Q3/00

公开(公告)号：US2797353A

公开(公告)日：1957-06-25

申请号：US23178351

申请日：1951-06-15

Applicant: BELL TELEPHONE LABOR INC

Inventor： MOLNAR JULIUS P ,  MOSTER CLARENCE R

IPC: H01J23/087

CPC classification number: H01J23/087

公开(公告)号：US20180286622A1

公开(公告)日：2018-10-04

申请号：US15762874

申请日：2016-09-16

Applicant: NEC NETWORK AND SENSOR SYSTEMS, LTD.

Inventor： Yukihira NAKAZATO ,  Eiji FUJIWARA

IPC: H01J23/34 ,  H01J23/04 ,  H01J23/06 ,  H01J23/027

CPC classification number: H01J23/34 ,  H01J23/027 ,  H01J23/04 ,  H01J23/06 ,  H01J23/065 ,  H01J23/087

Abstract: The purpose is to make it possible to autonomously suppress a reduction in an electron beam without providing a means for supervising the electron beam intensity of a monitor or the like. An electron gun, provided with: a heater (12) in which one terminal serves as a heater terminal (H) and the other terminal serves as a shared terminal (HK), and in which a low-voltage power supply (21) is connected between the terminals, the heater (12) generating heat due to a current being supplied from the low-voltage power supply (21); and a cathode electrode (11) connected to the shared terminal (HK) and heated by the heater (12) to discharge thermal electrons. A cathode current (Ik) due to the thermal electrons discharged from the cathode electrode (11), and a current (Ih) due to the low-voltage power supply, flow in opposite directions through the heater (12).

公开(公告)号：US20170140892A1

公开(公告)日：2017-05-18

申请号：US15319845

申请日：2015-06-26

Applicant: NEC Network and Sensor Systems, Ltd.

Inventor： Takatsugu MUNEHIRO

IPC: H01J23/087 ,  H01J23/065 ,  H01J23/027 ,  H01J23/04

CPC classification number: H01J23/087 ,  H01J23/027 ,  H01J23/04 ,  H01J23/06 ,  H01J23/065 ,  H01J23/0873 ,  H01J23/34 ,  H01J25/34 ,  H01J25/42

Abstract: Provided are a traveling wave tube and a high-frequency circuit system such that the product life span of the traveling wave tube operating in multiple modes can be extended while variations in gain and amplification efficiency that accompany switching of the operation modes can be suppressed. The traveling wave tube comprises: an electron gun equipped with a cathode that releases electrons, and a heater that provides the cathode with heat energy for releasing the electrons; a helix causing an RF signal to interact with an electron beam formed from the electrons released by the electron gun; a collector for catching the electron beam emitted by the helix; an anode whereby the electrons released from the electron gun are guided into the helix; and a magnetic field application device for generating a magnetic field in order to change the diameter of the electron beam, said magnetic field application device being supplied with electric power for generating the magnetic field from the outside.

公开(公告)号：US08723137B1

公开(公告)日：2014-05-13

申请号：US14051665

申请日：2013-10-11

Applicant: Ruey-Jen Hwu ,  Jishi Ren ,  Jehn-Huar Chern ,  Laurence P. Sadwick

Inventor： Ruey-Jen Hwu ,  Jishi Ren ,  Jehn-Huar Chern ,  Laurence P. Sadwick

IPC: H01J25/02 ,  H01J25/10 ,  H01J3/08

CPC classification number: H01J3/32 ,  H01F7/0278 ,  H01J3/24 ,  H01J23/087 ,  H01J23/10 ,  H01J25/34

Abstract: Various embodiments of a vacuum electronic device, a hybrid magnet for a vacuum electronic device and methods of making a hybrid magnet for a vacuum electronic device are disclosed herein. In one embodiment, a hybrid magnet for a vacuum electronic device includes a first magnet, a second magnet positioned in spaced-apart relation with the first magnet and defining a gap between the first magnet and the second magnet, and a non-magnetic spacer positioned in a portion of the gap between the first magnet and second magnet and connected to the first magnet and the second magnet.

Abstract translation: 这里公开了真空电子器件，真空电子器件的混合磁体和制造用于真空电子器件的混合磁体的方法的各种实施例。 在一个实施例中，一种用于真空电子设备的混合磁体包括第一磁体，与第一磁体间隔开定位并在第一磁体和第二磁体之间限定间隙的第二磁体，以及非磁性间隔件 在第一磁体和第二磁体之间的间隙的一部分中并连接到第一磁体和第二磁体。

公开(公告)号：US07663327B2

公开(公告)日：2010-02-16

申请号：US11434835

申请日：2006-05-15

Applicant: Ronak J. Bhatt ,  Chiping Chen ,  Jing Zhou ,  Alexey Radovinsky

Inventor： Ronak J. Bhatt ,  Chiping Chen ,  Jing Zhou ,  Alexey Radovinsky

IPC: H05H7/00

CPC classification number: H01F7/0278 ,  H01J23/087 ,  H01J23/0873 ,  H05H7/04

Abstract: A permanent magnet focusing system includes an electron gun that provides an electron ribbon beam having an elliptical shape. A plurality of permanent magnets provide transport for the electron ribbon beam. The permanent magnets produce a non-axisymmetric periodic permanent magnet (PPM) focusing field to allow the electron ribbon beam to be transported in the permanent magnet focusing system.

Abstract translation: 永磁体聚焦系统包括提供具有椭圆形状的电子束束的电子枪。 多个永磁体提供电子束束的输送。 永磁体产生非轴对称周期永磁体（PPM）聚焦场，以允许电子束束在永磁体聚焦系统中传输。

公开(公告)号：US20060181186A1

公开(公告)日：2006-08-17

申请号：US11352404

申请日：2006-02-13

Applicant: Stuart Andrews

Inventor： Stuart Andrews

IPC: H01J1/50 ,  H01J23/10

CPC classification number: H01J23/087 ,  H01J23/10 ,  H01J25/04

Abstract: An electron beam tube device has a magnetic frame with the top part being pivotable so as to pivot from a closed position in which the top part, including an electromagnetic coil covers the electron beam tube to an open position in which the electron beam tube is uncovered. This allows electron beam tubes with either large parts or integral parts such as output feeders to be removed from the magnetic frame without complete removal of the top plate.

Abstract translation: 电子束管装置具有磁性框架，其顶部可枢转，以便从闭合位置枢转，其中包括电磁线圈的顶部覆盖电子束管至电子束管未被覆盖的打开位置 。 这允许具有大部件或整体部件（例如输出馈线）的电子束管从磁性框架移除而不完全移除顶板。

公开(公告)号：US06777877B1

公开(公告)日：2004-08-17

申请号：US09649479

申请日：2000-08-28

Applicant: Edward L. Wright ,  Richard J. Dobbs

Inventor： Edward L. Wright ,  Richard J. Dobbs

IPC: H01J23087

CPC classification number: H01J23/0275 ,  H01J23/087 ,  H01J2225/10

Abstract: A klystron tube for amplifying signals at microwave radio frequencies utilizes an electron source for emitting electrons through a field focused by a high energy magnet in the RF section of the tube. After the electrons have passed through the active area of the tube, the electrons strike the collector which, in this case, is a multistage depressed collector. The multiple stages of the depressed collector are connected to high energy voltage sources of different potentials. The magnet used for focusing the electron beam is closed (no open pole pieces) at the multistage depressed collector so that no magnetic flux reversals are present to affect the beam dispersal, due to electrostatic space charge forces, onto the multistage depressed collector.

Abstract translation: 用于在微波射频上放大信号的速调管用于通过在管的RF部分中的高能量磁体聚焦的场中发射电子的电子源。 在电子通过管的有源区域之后，电子撞击收集器，在这种情况下，电子是多级的收集器。 集尘器的多级连接到不同电位的高能电压源。 用于聚焦电子束的磁体在多级压缩式集电器处封闭（无开极极片），使得不存在磁通反转，从而由于静电空间电荷力而影响到多级压陷集电极上的光束分散。

公开(公告)号：US20040118841A1

公开(公告)日：2004-06-24

申请号：US10632802

申请日：2003-08-04

Applicant: SAMSUNG Electronics Co., Ltd.

Inventor： Jong-Chull Shon ,  Boris V. Rayskiy ,  Hyun-Jun Ha

IPC: H05B006/72

CPC classification number: H01J25/587 ,  H01J23/087 ,  H01J23/10 ,  H05B6/72

Abstract: A magnetron, and a microwave oven and a high frequency heating apparatus each equipped with the same use, a single permanent magnet disposed above or below an anode, a pole piece near the permanent magnet that has a magnetic flux dispersing structure, and another pole piece opposite to the permanent magnet that has a magnetic flux concentrating structure. In accordance with the present invention, even though a single permanent magnet is provided, magnetic flux density is rendered uniform across an activating space, so that the volume and parts of the magnetron are reduced and the curtailment of manufacturing costs is realized.

Abstract translation: 具有相同用途的磁控管，微波炉和高频加热装置，设置在阳极上方或下方的单个永磁体，具有磁通量分散结构的永久磁铁附近的极片，以及另一极片 与具有磁通集中结构的永磁体相对。 根据本发明，即使设置单个永磁体，磁通密度在激活空间上变得均匀，从而减小了磁控管的体积和部分，并且实现了制造成本的缩减。