公开(公告)号：US10418219B2

公开(公告)日：2019-09-17

申请号：US16131028

申请日：2018-11-13

Applicant: University of Electronic Science and Technology of China

Inventor： Zhaoyun Duan ,  Xin Wang ,  Xirui Zhan ,  Fei Wang ,  Shifeng Li ,  Zhanliang Wang ,  Yubin Gong

IPC: H01J25/12 ,  H01J23/22 ,  H01J23/20

Abstract: A left-handed material extended interaction klystron includes: an input cavity, a middle cavity, an output cavity, first-section drift tube and a second-section drift tube; wherein the input cavity, the middle cavity and the output cavity are all cylindrical resonant cavities having arrays of Complementary electric Split-Ring Resonator (CeSRR) unit cells provided therein; wherein a first side of the input cavity is an input channel of an electron beam, a second side connects the middle cavity via the first-section drift tube; a first T-shaped coaxial input structure is provided in the input cavity; a first side of the output cavity is for connecting a collector, a second side of the output cavity connects the middle cavity via the second-section drift tube, a second T-shaped coaxial output structure is provided in the output cavity.

公开(公告)号：US20180082817A1

公开(公告)日：2018-03-22

申请号：US15829278

申请日：2017-12-01

Applicant: Edl Schamiloglu ,  Mikhail I. Fuks

Inventor： Edl Schamiloglu ,  Mikhail I. Fuks

IPC: H01J25/50 ,  H01J23/20

CPC classification number: H01J25/50 ,  H01J23/02 ,  H01J23/20

Abstract: The present invention provides a relativistic magnetron including an anode with an entrant channel, the channel having an input end, an output end and a dimensional discontinuity between the ends. The channel is connected to the magnetron and has an anode defining an interaction space located between the dimensional discontinuity and output end. Also provided is a cathode, located upstream, a spaced distance away from the interaction space towards the input end, the cathode is adapted to send an electron beam into the interaction space where the electron beam forms a virtual cathode in the interaction space.

公开(公告)号：US09697977B2

公开(公告)日：2017-07-04

申请号：US14494689

申请日：2014-09-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung Chul Yang ,  Dang Won Kim ,  Hak Jae Kim ,  Ki Whan Kim

IPC: H05B6/64 ,  H05B6/72 ,  H01J23/10 ,  H05B6/66 ,  H01J25/50 ,  H01J23/00 ,  H01J23/20 ,  H01J23/11 ,  H01J25/587

CPC classification number: H01J23/10 ,  H01J23/005 ,  H01J23/11 ,  H01J23/20 ,  H01J25/50 ,  H01J25/587 ,  H05B6/66

Abstract: A magnetron includes a yoke, an anode unit including an anode cylinder, radially arranged vanes, and first and second pole pieces at both sides of the anode cylinder, a cathode unit having a filament spaced apart from the vanes, and an output unit having an antenna lead connected to one vane to radiate high-frequency microwaves. The first pole piece includes a first flat portion, a slope at an inner side of the first flat portion, a second flat portion at an inner side of the slope and having a diameter of 9.5˜10.5 mm, a first hole formed in the second flat portion and having a diameter of 8˜8.2 mm, and a second hole formed in the slope for penetration of the antenna lead. The magnetron achieves higher and stabilized efficiency, restricted oscillation efficiency variation, lower energy consumption, and improved load stability without deterioration of oscillation efficiency.

公开(公告)号：US08903464B1

公开(公告)日：2014-12-02

申请号：US12925503

申请日：2010-10-23

Applicant: Ganapati Rao Myneni ,  John P. Wallace

Inventor： Ganapati Rao Myneni ,  John P. Wallace

IPC: H01L39/24 ,  H01J23/20 ,  H05H7/20

CPC classification number: H05H7/20 ,  H01L39/2406 ,  Y10T29/49014

Abstract: An apparatus and process for the production of a niobium cavity exhibiting high quality factors at high gradients is provided. The apparatus comprises a first chamber positioned within a second chamber, an RF generator and vacuum pumping systems. The process comprises placing the niobium cavity in a first chamber of the apparatus; thermally treating the cavity by high temperature in the first chamber while maintaining high vacuum in the first and second chambers; and applying a passivating thin film layer to a surface of the cavity in the presence of a gaseous mixture and an RF field.Further a niobium cavity exhibiting high quality factors at high gradients produced by the method of the invention is provided.

Abstract translation: 提供了一种用于生产以高梯度显示高质量因素的铌腔的设备和方法。 该装置包括位于第二室内的第一室，RF发生器和真空泵系统。 该方法包括将铌腔放置在设备的第一腔室中; 在第一腔室内通过高温对腔进行热处理，同时保持第一和第二腔室中的高真空度; 以及在气体混合物和RF场的存在下将钝化薄膜层施加到所述空腔的表面。 此外，提供了通过本发明的方法产生的在高梯度下表现出高品质因素的铌腔。

公开(公告)号：US07592746B2

公开(公告)日：2009-09-22

申请号：US11067844

申请日：2005-02-28

Applicant: Ronald M. McAlpine

Inventor： Ronald M. McAlpine

IPC: H01J23/20

CPC classification number: H01J9/125 ,  H01J43/04

Abstract: A photomultiplier (2) is disclosed having an element (16) for modifying the gain thereof either during manufacture (after the normal activation process) or in use, by changing the secondary electron emission characteristics of dynodes of the photomultiplier (2) and/or by modifying the electromagnetic field within the photomultiplier (2). The element (16) is made of a different material than the emissive surface of dynodes (8) of the photomultiplier (2). Methods of manufacturing a photomultiplier (2) and of tuning the gain of a photomultiplier (2) are also disclosed.

Abstract translation: 公开了一种光电倍增管（2），其具有用于在制造期间（正常激活过程之后）或在使用中通过改变光电倍增管（2）的倍增电极的二次电子发射特性和/或 通过修改光电倍增管（2）内的电磁场。 元件（16）由与光电倍增管（2）的倍增极（8）的发射表面不同的材料制成。 还公开了制造光电倍增管（2）和调整光电倍增管（2）的增益的方法。

公开(公告)号：US06841940B2

公开(公告)日：2005-01-11

申请号：US10168647

申请日：2000-12-21

Applicant: Michael B Brady ,  John W Kerr

Inventor： Michael B Brady ,  John W Kerr

IPC: H01J23/00 ,  H01J23/16 ,  H01J23/20 ,  H01J23/22 ,  H01J25/587

CPC classification number: H01J23/165 ,  H01J23/20 ,  H01J23/22 ,  H01J2225/587

Abstract: In a magnetron anode, an anode surrounds a central cathode. The anode is of a segmented structure having a plurality of annular segments stacked together along its length. Each annular segment includes a strap, the strap being distributed substantially along the entire axial length of the anode vanes. This enables mode separation to be achieved, even for long anode lengths and, hence, permits high power operation to be achieved. In addition, the segmented structure of the anode gives a mechanically robust design.

Abstract translation: 在磁控阳极中，阳极围绕中心阴极。 阳极是具有沿其长度堆叠在一起的多个环形段的分段结构。 每个环形部分包括带子，该带子基本沿着阳极叶片的整个轴向长度分布。 这使得即使对于长的阳极长度也能够实现模式分离，并且因此允许实现高功率操作。 此外，阳极的分段结构给出了机械坚固的设计。

公开(公告)号：US5883367A

公开(公告)日：1999-03-16

申请号：US984859

申请日：1997-12-04

Applicant: Gi-Jun Cho ,  Jae-Soo Kim

Inventor： Gi-Jun Cho ,  Jae-Soo Kim

IPC: H05B6/66 ,  H01J23/15 ,  H01J23/20 ,  H01J25/00 ,  H01J25/04 ,  H01J25/10 ,  H01J25/50 ,  H05B6/64 ,  H01J25/02

CPC classification number: H01J25/04 ,  H01J2225/02

Abstract: A microwave oven includes a cooking chamber, a waveguide, and an apparatus for generating a microwave frequency energy. The apparatus includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit, a trimming resistor for inducing a bias voltage on the first grid, a second grid provided above the first grid and having a plurality of holes through which the electron beams passing through the holes of the first grid pass, an anode for receiving the electrons passing through the holes of the second grid, cooling fins for cooling heat generated by the anode, a driving voltage source for providing a driving voltage to the cathode and the anode, an antenna for extracting the microwave from an output cavity into the cooking chamber via the waveguide, the output cavity being defined by the second grid and the anode, and a feedback structure for feeding a portion of the microwave frequency energy back to the input cavity.

Abstract translation: 微波炉包括烹饪室，波导管和用于产生微波频率能量的装置。 该装置包括用于发射电子的阴极，用于控制和聚焦来自阴极的电子流的第一栅极，用作电容器的扼流结构，其中阴极，第一栅极和扼流结构限定用作 谐振电路，用于在第一栅极上产生偏置电压的微调电阻，设置在第一栅极之上的第二栅极，并且具有多个孔，穿过第一栅极的电子束通过该孔，用于接收的阳极 通过第二栅极的空穴的电子，用于冷却由阳极产生的热的冷却翅片，用于向阴极和阳极提供驱动电压的驱动电压源，用于将微波从输出腔提取到烹饪中的天线 所述输出腔由所述第二栅极和所述阳极限定，以及用于馈送所述微波频率e的一部分的反馈结构 能量回到输入腔。

公开(公告)号：US5818170A

公开(公告)日：1998-10-06

申请号：US400332

申请日：1995-03-07

Applicant: Toshiyuki Kikunaga ,  Hiroyuki Asano

Inventor： Toshiyuki Kikunaga ,  Hiroyuki Asano

IPC: H01J23/075 ,  H01J23/10 ,  H01J23/20 ,  H01J23/34 ,  H01J25/00 ,  H01J25/02 ,  H01J23/08

CPC classification number: H01J23/10 ,  H01J23/075 ,  H01J23/34 ,  H01J25/025

Abstract: A gyrotron system comprises an electron gun that produces an electron beam, a magnetic field generating unit comprising a permanent magnet and two electromagnets and capable of generating an axial magnetic field that drives electrons emitted from the electron gun for revolving motion, a cavity resonator that causes cyclotron resonance maser interaction between the revolving electrons and a high-frequency electromagnetic field resonating in a natural mode, a collector for collecting the electron beam traveled through the cavity resonator, and an output window through which a high-frequency wave produced by the cyclotron resonance maser interaction propagates. The gyrotron system can be fabricated at a comparatively low cost, is easy to operate, has a comparatively small size and is capable of operating at a comparatively low running cost.

Abstract translation: 陀螺仪系统包括产生电子束的电子枪，包括永磁体和两个电磁体的磁场产生单元，并且能产生驱动电子枪发射的电子的旋转运动的轴向磁场，引起 旋转电子之间的回旋共振与激光器之间的相互作用以及以自然模式谐振的高频电磁场，用于收集通过空腔谐振器行进的电子束的集电体和通过回旋共振产生的高频波的输出窗 maser互动传播。 陀螺仪系统可以以相对低的成本制造，易于操作，具有相对小的尺寸并且能够以较低的运行成本运行。

公开(公告)号：US5798613A

公开(公告)日：1998-08-25

申请号：US734381

申请日：1996-10-17

Applicant: Jong Soo Lee

Inventor： Jong Soo Lee

IPC: H01J23/20 ,  H01J23/54 ,  H01J25/587

CPC classification number: H01J25/587

Abstract: A magnetron which is capable of optimizing a resonance structure by changing the number of vanes, the height of vanes, an outer diameter of a cathode and a diameter of a working space, the improvements are characterized in that the resonance unit has ten vanes having each height of 10.5 mm.about.12.5 mm, an outer diameter of the cathode is 4.0 mm.about.4.6 mm, a diameter of the working space between each symmetrical vane is 9.0 mm.about.12.0 mm to obtain a high frequency output of 1250 W.about.1500 W from an operating voltage of 4.3 kV.about.4.7 kV.

Abstract translation: 能够通过改变叶片的数量，叶片的高度，阴极的外径和工作空间的直径来优化共振结构的磁控管的特征在于，共振单元具有10个叶片 高度10.5毫米差异12.5毫米，阴极外径为4.0毫米差异4.6毫米，每个对称叶片之间的工作空间的直径为9.0毫米差异12.0毫米，以获得1250瓦差距的高频输出1500瓦从 工作电压4.3 kV差异4.7 kV。

公开(公告)号：US5698949A

公开(公告)日：1997-12-16

申请号：US413034

申请日：1995-03-28

Applicant: Erling L. Lien ,  Heinz Bohlen

Inventor： Erling L. Lien ,  Heinz Bohlen

IPC: H01J23/20 ,  H01J25/02 ,  H01J25/04 ,  H01J25/14 ,  H01J23/07

CPC classification number: H01J25/14 ,  H01J25/02 ,  H01J25/04

Abstract: An inductive output tube, e.g., a KLYSTRODE, or a klystron, has a substantially hollow electron beam traversing a resonant cavity excited to the TM.sub.0x0 mode, where x is greater than 1.

Abstract translation: 感应输出管，例如KLYSTRODE或速调管，具有穿过激励到TM0x0模式的谐振腔的基本上中空的电子束，其中x大于1。