公开(公告)号：US20130082594A1

公开(公告)日：2013-04-04

申请号：US13637286

申请日：2011-03-25

Applicant: David Bernard Fox ,  Robert Richardson

Inventor： David Bernard Fox ,  Robert Richardson

IPC: H01J25/50

CPC classification number: H01J25/50 ,  H01J23/05 ,  H01J23/14 ,  H01J23/34 ,  H01J25/587

Abstract: A magnetron has an anode and a cathode. The cathode includes two parts joined by sleeves of ferrous alloy spaced by a sleeve of insulating material. The ferrous alloy sleeves are adapted to be connected to opposite poles of a power supply for heating the cathode. A high frequency power supply is used to heat the cathode. The ferrous alloy sleeves have a surface coating of conductive material. The currents induced by the magnetic field generated by the high frequency currents of the power supply are largely confined to the conductive coating due to the skin effect, avoiding the heating of and losses in the ferrous alloy itself which would otherwise ensue.

Abstract translation: 磁控管具有阳极和阴极。 阴极包括由绝缘材料套隔开的铁合金套筒连接的两个部分。 铁合金套筒适于连接到用于加热阴极的电源的相反极。 使用高频电源来加热阴极。 铁合金套管具有导电材料的表面涂层。 由电源的高频电流产生的磁场引起的电流由于皮肤效应而大部分被限制在导电涂层上，从而避免了否则将会发生的铁合金本身的加热和损失。

公开(公告)号：US20120280619A1

公开(公告)日：2012-11-08

申请号：US13509191

申请日：2010-11-11

Applicant: Robert Richardson ,  Michael Bland ,  Colin Bennett

Inventor： Robert Richardson ,  Michael Bland ,  Colin Bennett

IPC: H01J23/34

CPC classification number: H01J1/135 ,  H01J23/05 ,  H01J25/52 ,  H01J25/587

Abstract: A high frequency cathode heater supply for a microwave source includes a SMPS inverter and an isolation transformer having a primary winding arranged to be powered by the SMPS inverter, a monitor winding passing through primary core assemblies of the primary winding and a secondary winding arranged for connection to the cathode heater. A current monitor is arranged to monitor a current in the primary windings. Signal processing modules are arranged to receive a first input signal from the monitor winding indicative of a voltage across the cathode heater and a second input signal from the current monitor indicative of a current through the cathode heater. The signal processing modules are arranged to output a control signal to the SMPS inverter to control power supplied to the cathode heater dependent on a monitored resistance of, or monitored power supplied to, the cathode heater as determined from the first input signal and the second input signal.

Abstract translation: 用于微波源的高频阴极加热器电源包括SMPS逆变器和隔离变压器，其具有布置成由SMPS逆变器供电的初级绕组，通过初级绕组的初级芯组件的监视器绕组和布置成用于连接的次级绕组 到阴极加热器。 电流监视器用于监视初级绕组中的电流。 信号处理模块被布置成从监视器绕组接收指示阴极加热器两端的电压的第一输入信号和来自电流监视器的指示通过阴极加热器的电流的第二输入信号。 所述信号处理模块被布置为根据从所述第一输入信号和所述第二输入确定的所述阴极加热器的被监视电阻或监视的功率来控制向所述阴极加热器供电的功率，以输出控制信号到所述SMPS逆变器 信号。

公开(公告)号：US08115392B1

公开(公告)日：2012-02-14

申请号：US10584563

申请日：2007-05-31

Applicant: Magnus Karlsson ,  Fredrik Olsson

Inventor： Magnus Karlsson ,  Fredrik Olsson

IPC: H01J25/12 ,  H01J23/05

CPC classification number: H01J23/04 ,  H01J23/05 ,  H01J25/02 ,  H01J25/32 ,  H01J25/74

Abstract: The invention relates to a device for generation of microwaves comprising a coaxial virtual cathode oscillator (1) with an outer cylindrical tube forming a cathode (2) and connected to a transmission line (8) for feeding the cathode (2) with voltage pulses, and an inner cylindrical tube, at least partially transparent for electrons, forming an anode (3) and connected to a transmission device (8) for outputting microwave radiation generated by the formation of a virtual cathode (4) inside an area enclosed by the anode. Through the introduction of a centre conductor (5) arranged to coincide with the centre axle (19) for the cathode's (2) outer cylindrical tube and in electrical connection with the tube a device for generation of microwaves is obtained having improved energy efficiency and better broadband performance.

Abstract translation: 本发明涉及一种用于产生微波的装置，包括一个同轴虚拟阴极振荡器（1），该同轴虚拟阴极振荡器（1）具有形成阴极（2）的外圆柱形管，并连接到用于将阴极（2）馈送到电压脉冲的传输线（8） 和至少部分地为电子透明的内圆柱形管，形成阳极（3）并连接到传输装置（8），用于输出在由阳极包围的区域内形成虚拟阴极（4）而产生的微波辐射 。 通过引入布置成与用于阴极（2）外圆柱形管的中心轴（19）重合并与管电连接的中心导体（5），获得具有改善的能量效率和更好的用于产生微波的装置 宽带性能。

公开(公告)号：US20120025703A1

公开(公告)日：2012-02-02

申请号：US10584563

申请日：2007-05-31

Applicant: Magnus Karlsson ,  Fredrik Olsson

Inventor： Magnus Karlsson ,  Fredrik Olsson

IPC: H01J25/55

CPC classification number: H01J23/04 ,  H01J23/05 ,  H01J25/02 ,  H01J25/32 ,  H01J25/74

Abstract: The invention relates to a device for generation of microwaves comprising a coaxial virtual cathode oscillator (1) with an outer cylindrical tube forming a cathode (2) and connected to a transmission line (8) for feeding the cathode (2) with voltage pulses, and an inner cylindrical tube, at least partially transparent for electrons, forming an anode (3) and connected to a transmission device (8) for outputting microwave radiation generated by the formation of a virtual cathode (4) inside an area enclosed by the anode. Through the introduction of a centre conductor (5) arranged to coincide with the centre axle (19) for the cathode's (2) outer cylindrical tube and in electrical connection with the tube a device for generation of microwaves is obtained having improved energy efficiency and better broadband performance.

Abstract translation: 本发明涉及一种用于产生微波的装置，包括一个同轴虚拟阴极振荡器（1），该同轴虚拟阴极振荡器（1）具有形成阴极（2）的外圆柱形管，并连接到用于将阴极（2）馈送到电压脉冲的传输线（8） 和至少部分地为电子透明的内圆柱形管，形成阳极（3）并连接到传输装置（8），用于输出在由阳极包围的区域内形成虚拟阴极（4）而产生的微波辐射 。 通过引入布置成与用于阴极（2）外圆柱形管的中心轴（19）重合并与管电连接的中心导体（5），获得具有改善的能量效率和更好的用于产生微波的装置 宽带性能。

公开(公告)号：US20110181460A1

公开(公告)日：2011-07-28

申请号：US10584560

申请日：2007-05-31

Applicant: Frederik Olsson ,  Magnus Karlsson

Inventor： Frederik Olsson ,  Magnus Karlsson

IPC: G01S7/282

CPC classification number: H01J25/02 ,  H01J23/04 ,  H01J23/05 ,  H01J25/32 ,  H01J25/74

Abstract: The invention relates to a device for generation of microwaves comprising a virtual cathode oscillator (1) in a coaxial embodiment with an outer cylindrical tube forming a cathode (2) and connected to a transmission line (14) for feeding the cathode (2) with voltage pulses, and an inner cylindrical tube, at least partially transparent for electrons, forming a anode (3) and connected to a waveguide (13) for outputting microwave radiation generated by the formation of a virtual cathode (4) inside an area enclosed by the anode. Through the introduction of electrically conductive structures (5 and 6) a device for generation of microwaves is achieved that demonstrates higher efficiency and higher peak output.

Abstract translation: 本发明涉及一种用于产生微波的装置，其包括在同轴实施例中的虚拟阴极振荡器（1），其中形成阴极（2）的外圆筒形管并连接到用于将阴极（2）馈送到 电压脉冲和内部圆柱形管，对于电子至少部分透明，形成阳极（3）并连接到波导（13），用于输出由虚拟阴极（4）形成的微波辐射，所述微波辐射在由 阳极。 通过引入导电结构（5和6），实现了产生微波的装置，其显示出更高的效率和更高的峰值输出。

公开(公告)号：US20110169390A1

公开(公告)日：2011-07-14

申请号：US13063583

申请日：2009-09-17

Applicant: Tadahiro Ohmi ,  Tetsuya Goto

Inventor： Tadahiro Ohmi ,  Tetsuya Goto

IPC: H01J7/26 ,  H01J1/14 ,  H01J1/00 ,  H01J9/04

CPC classification number: H01J25/587 ,  H01J23/05

Abstract: It is an object of the present invention to obtain a cathode body capable of maintaining a long service life even when a high current flows therethrough. According to the present invention, it is possible to obtain a magnetron cathode body including, as a base material, a high-melting-point metal containing an electron emission material, and rare-earth boride coating a surface thereof. As the electron emission material and the high-melting-point metal, La2O3 and W are desirable, respectively. As the rare-earth boride, LaB6 is preferable.

Abstract translation: 本发明的目的是获得即使当高电流流经时也能够保持长使用寿命的阴极体。 根据本发明，可以获得包含作为基材的含有电子发射材料的高熔点金属和涂覆其表面的稀土硼化物的磁控阴极体。 作为电子发射材料和高熔点金属，分别需要La 2 O 3和W。 作为稀土硼化物，优选LaB6。

公开(公告)号：US20100052501A1

公开(公告)日：2010-03-04

申请号：US12516140

申请日：2008-09-08

Applicant: Makoto Ueda ,  Tsutomu Morioka

Inventor： Makoto Ueda ,  Tsutomu Morioka

IPC: H01K1/18 ,  C22C27/04 ,  B23K1/20

CPC classification number: H01J23/05 ,  B23K1/0008 ,  B23K1/19 ,  C22C1/02 ,  C22C27/04 ,  H01J1/13 ,  H01J25/587

Abstract: To obtain a brazing material where the major components thereof is Mo and Ru of the rare metal is not used.The brazing material comprised of (1 to 3.5) wt % of C—(1 to 3.5) wt % of B—remainder of Mo.

Abstract translation: 为了获得其主要成分为Mo且不使用稀有金属的Ru的钎焊材料。 该钎焊材料包含（1至3.5）重量％的C-（1至3.5）重量百分比的B余量的Mo。

公开(公告)号：US20080246385A1

公开(公告)日：2008-10-09

申请号：US12019140

申请日：2008-01-24

Applicant: Edl Schamiloglu ,  Mikhail I. Fuks ,  Herman L. Bosman ,  Sarita Prasad

Inventor： Edl Schamiloglu ,  Mikhail I. Fuks ,  Herman L. Bosman ,  Sarita Prasad

IPC: H05H13/00 ,  H01J1/00

CPC classification number: H01J25/587 ,  H01J23/05

Abstract: An “eggbeater” cathode comprising a transparent cathode including a plurality of longitudinally oriented cathode strips anchored at both ends between support discs and forming an open-walled hollow cylindrical structure. A cathode base is disposed substantially coaxially with a longitudinal axis of the transparent cathode and surrounded by the plurality of cathode strips, wherein the support discs secure the cathode strips to the cathode base and result in a cathode that is more robust in harsh operating environments compared with a simple transparent cathode.

Abstract translation: 一种“打蛋器”阴极，其包括透明阴极，该透明阴极包括多个纵向取向的阴极条，其固定在支撑盘之间的两端并形成开放壁的中空圆柱形结构。 阴极基体与透明阴极的纵向轴线基本同轴地设置并被多个阴极条包围，其中支撑盘将阴极条固定到阴极基底，并导致阴极在恶劣的操作环境中比较坚固 具有简单的透明阴极。

公开(公告)号：US07235929B2

公开(公告)日：2007-06-26

申请号：US11038027

申请日：2005-01-21

Applicant: Masahiro Inami

Inventor： Masahiro Inami

IPC: H01J25/50

CPC classification number: H01J9/04 ,  H01J23/05 ,  H01J25/587

Abstract: A magnetron 10 is equipped with a helical filament 39, as an element of a cathode assembly, arranged on a central axis of an anode cylindrical body 13. Assuming that a resistance value of the filament 39 before forming the carbonized layer is R1 and a resistance value of the filament 39 after forming the carbonized layer is R2, a thickness of the carbonized layer 42 of the filament 39 is determined such that a carbonization rate Rx defined by the equation “Rx={(R2−R1)/R1}×100” in a range of from 30 to 50%.

Abstract translation: 磁控管10配备有布置在阳极筒体13的中心轴上的作为阴极组件的元件的螺旋细丝39。 假设在形成碳化层之前的细丝39的电阻值为R 1，形成碳化层后的细丝39的电阻值为R 2，则确定细丝39的碳化层42的厚度，使得 由式Rx = {（R 2 -R 1）/ R 1}×100“定义的碳化速率Rx在30〜50％的范围内。

公开(公告)号：US06686696B2

公开(公告)日：2004-02-03

申请号：US09802585

申请日：2001-03-08

Applicant: Gerald T. Mearini ,  Laszlo A. Takacs

Inventor： Gerald T. Mearini ,  Laszlo A. Takacs

IPC: H01J2305

CPC classification number: H01J23/05 ,  H01J2201/30457 ,  H01J2201/32

Abstract: A radio frequency magnetron device for generating radio frequency power includes a cathode at least partially formed from a diamond material. An anode is disposed concentrically around the cathode. An electron field is provided radially between the anode and the cathode. First and second oppositely charged pole pieces are operatively connected to the cathode for producing a magnetic field in a direction perpendicular to the electric field. A filament is provided within the electron tube which when heated produces primary electrons. Alternatively, a voltage is applied to the anode which causes primary electrons to emit from the diamond coated cathode. A portion of the primary electrons travel in a circular path and induce radio frequency power. Another portion of the primary electrons spiral back and collide with the cathode causing the emission of secondary electrons. The secondary electron emission sustains operation of the magnetron device once the device has been started.

Abstract translation: 用于产生射频功率的射频磁控管装置包括至少部分由金刚石材料形成的阴极。 阳极围绕阴极同心地设置。 在阳极和阴极之间径向设置电子场。 第一和第二相对带电的极片可操作地连接到阴极，以在垂直于电场的方向上产生磁场。 在电子管内提供一根灯丝，当加热时产生一次电子。 或者，向阳极施加电压，其使一次电子从金刚石涂覆的阴极发射。 一部分一次电子以圆形路径行进并且感应射频功率。 一次电子的另一部分螺旋回来并与阴极碰撞引起二次电子的发射。 一旦装置启动，二次电子发射就能维持磁控管装置的操作。