公开(公告)号：US07474042B2

公开(公告)日：2009-01-06

申请号：US10912099

申请日：2004-08-06

Applicant: Masayuki Aiga ,  Toshiyuki Tsukada

Inventor： Masayuki Aiga ,  Toshiyuki Tsukada

IPC: H01J1/62

CPC classification number: H01J23/05 ,  B82Y10/00 ,  H01J25/587 ,  H01J2201/30469

Abstract: A cathode substrate 10 is heated to 400 to 600° C. in the atmosphere of hydrocarbon gas such as methane and the gas is allowed to react with the surface of the cathode substrate 10 by a thermal CVD method. Thus, an electron emission source in which graphite nano-fibers 11 are allowed to grow in a gaseous-phase on the surface of the cathode substrate 10 by using nickel or iron existing on the surface of the cathode substrate 10 as a nucleus is held between upper and lower end hats 12 to form a cathode part 13.

Abstract translation: 将阴极基板10在甲烷等烃类气体的气氛中加热至400〜600℃，通过热CVD法使气体与阴极基板10的表面反应。 因此，通过使用存在于阴极基板10的表面上的镍或铁作为核，允许石墨纳米纤维11在气相上在阴极基板10的表面上生长的电子发射源被保持在 上下端帽12以形成阴极部分13。

公开(公告)号：US07245082B1

公开(公告)日：2007-07-17

申请号：US11146976

申请日：2005-06-06

Applicant: Timothy P. Fleming

Inventor： Timothy P. Fleming

IPC: H01J25/50 ,  H01J23/05

CPC classification number: H01J23/05 ,  H01J25/50

Abstract: A high-power relativistic magnetron wherein the cathode geometry is shaped to form a DC electric field that has a non-negligible azimuthal component causing preferential selection of the pi mode at startup (suppression of mode competition), a significant increase in radiated power output and time integrated efficiency when compared to standard relativistic magnetron cathode designs.

Abstract translation: 大功率相对论磁控管，其中阴极几何形状被成形为形成具有不可忽略的方位角分量的DC电场，该方位角分量在起动时导致pi模式的优先选择（抑制模式竞争），辐射功率输出的显着增加和 与标准相对论磁控阴极设计相比，时间集成效率。

公开(公告)号：US07038387B2

公开(公告)日：2006-05-02

申请号：US10712831

申请日：2003-11-12

Applicant: Hideyuki Obata ,  Naoki Tsuji

Inventor： Hideyuki Obata ,  Naoki Tsuji

IPC: H01J25/34

CPC classification number: H01J23/05 ,  H01J23/20 ,  H01J25/587

Abstract: A pulse magnetron includes a cylindrical shell anode, a cathode provided at the center of the anode having a number of vanes mounted radially on an inner wall of the cylindrical anode shell, and a pair of pole pieces provided for applying a magnetic field to an interaction space where the outer side of the cathode is opposed to inner ends of the vanes. The anode and the cathode are arranged to satisfy at least either (i) increasing the radius of the inscribed circle defined by the inner ends of the vanes or (ii) decreasing the radius of the cathode surface as the magnetic flux density along the axial direction of the cathode at both ends of the inner end of the height of the vanes.

Abstract translation: 脉冲磁控管包括圆柱形外壳阳极，设置在阳极中心处的阴极，其具有径向安装在圆柱形阳极壳体的内壁上的多个叶片以及用于将磁场施加到相互作用的一对极片 阴极的外侧与叶片的内端相对的空间。 阳极和阴极被布置成满足以下（i）增加由叶片的内端限定的内切圆的半径，或者（ii）沿着轴向方向减小阴极表面的半径 在叶片高度内端两端的阴极。

公开(公告)号：US06989634B2

公开(公告)日：2006-01-24

申请号：US10749288

申请日：2003-12-30

Applicant: Etsuo Saitou ,  Takeshi Ishii ,  Masanori Yoshihara ,  Hideki Ohguri ,  Toshiyuki Tsukada

Inventor： Etsuo Saitou ,  Takeshi Ishii ,  Masanori Yoshihara ,  Hideki Ohguri ,  Toshiyuki Tsukada

IPC: H01J25/50

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

Abstract: A magnetron cathode assembly which realizes stopping of turn of an external terminal inserted into a stem insulator without increasing a manufacturing cost. A leading end of a base end axial portion of an external terminal has a non-circular section by providing a flat surface in at least one position on its peripheral surface, and a straight stop edge that fits to the flat surface thereby to carry out stopping of turn of the external terminal is provided for a terminal fitting hole of a sealing metal plate into which the leading end of this external terminal is fitted.

Abstract translation: 一种磁控管阴极组件，其实现插入到杆绝缘体中的外部端子的转动停止而不增加制造成本。 外部端子的基端轴向部分的前端通过在其外周表面上的至少一个位置提供平坦表面而具有非圆形截面，以及直的止动边缘，其与平坦表面配合从而进行停止 为外部端子的前端设置有密封金属板的端子安装孔，

公开(公告)号：US20050029917A1

公开(公告)日：2005-02-10

申请号：US10912099

申请日：2004-08-06

Applicant: Masayuki Aiga ,  Toshiyuki Tsukada

Inventor： Masayuki Aiga ,  Toshiyuki Tsukada

IPC: H01J23/04 ,  H01J1/304 ,  H01J9/02 ,  H01J23/05 ,  H01J25/587 ,  H01J1/05 ,  H01J1/02

CPC classification number: H01J23/05 ,  B82Y10/00 ,  H01J25/587 ,  H01J2201/30469

Abstract: A cathode substrate 10 is heated to 400 to 600° C. in the atmosphere of hydrocarbon gas such as methane and the gas is allowed to react with the surface of the cathode substrate 10 by a thermal CVD method. Thus, an electron emission source in which graphite nano-fibers 11 are allowed to grow in a gaseous-phase on the surface of the cathode substrate 10 by using nickel or iron existing on the surface of the cathode substrate 10 as a nucleus is held between upper and lower end hats 12 to form a cathode part 13.

Abstract translation: 将阴极基板10在甲烷等烃类气体的气氛中加热至400〜600℃，通过热CVD法使气体与阴极基板10的表面反应。 因此，通过使用存在于阴极基板10的表面上的镍或铁作为核，允许石墨纳米纤维11在气相上在阴极基板10的表面上生长的电子发射源被保持在 上下端帽12以形成阴极部分13。

公开(公告)号：US20040104679A1

公开(公告)日：2004-06-03

申请号：US10712831

申请日：2003-11-12

Applicant: New Japan Radio Co., Ltd.

Inventor： Hideyuki Obata ,  Naoki Tsuji

IPC: H01J025/50

CPC classification number: H01J23/05 ,  H01J23/20 ,  H01J25/587

Abstract: The object of the present invention is to provide a pulse magnetron which can inhibit unwanted oscillation at an operation point lower than the rated level in the rise or decay of a pulse, attenuate spurious radiation at lower frequencies than the fundamental oscillation frequency, and produce an improved symmetrical profile of output spectrum. The pulse magnetron of the present invention includes an anode, a cathode provided at the center of the anode, and a pair of pole pieces provided for applying a magnetic field to an interaction space where the outer side of the cathode is opposed to the inner ends of the vanes. The radius ra of the inscribed circle defined by the inner ends of the vanes and the radius rc of the cathode surface satisfy the operation theory equation for the minimum value of the magnetic flux density along the axial direction of the cathode at both ends of the inner end of the height of the vanes in the interaction space. The anode and the cathode are arranged to satisfy at least either (i) increasing the radius of the inscribed circle defined by the inner ends of the vanes or (ii) decreasing the radius of the cathode surface as the magnetic flux density along the axial direction of the cathode at both ends of the inner end of the height of the vanes.

Abstract translation: 本发明的目的是提供一种脉冲磁控管，其可以抑制在脉冲上升或衰减的低于额定电平的操作点处的不需要的振荡，从而使在比基本振荡频率更低的频率衰减寄生辐射，并产生 改善输出光谱对称曲线。 本发明的脉冲磁控管包括阳极，设置在阳极中心的阴极和一对极片，用于向阴极外侧与内端相对的相互作用空间施加磁场 的叶片。 由叶片的内端限定的内切圆的半径ra和阴极表面的半径rc满足沿着内部两端的阴极的轴向的磁通密度的最小值的操作理论方程 在相互作用空间中叶片的高度的末端。 阳极和阴极被布置成满足以下（i）增加由叶片的内端限定的内切圆的半径，或者（ii）沿着轴向方向减小阴极表面的半径 在叶片高度内端两端的阴极。

公开(公告)号：US06646367B2

公开(公告)日：2003-11-11

申请号：US10216249

申请日：2002-08-12

Applicant: Vladimir Makhov

Inventor： Vladimir Makhov

IPC: H01J162

CPC classification number: H01J9/025 ,  H01J23/04 ,  H01J23/05 ,  H01J2223/165

Abstract: The present invention relates to electronics and particularly to field emitters used in M-type microwave devices. The design of a multi-layer field emitter is proposed which has at least one operating film and supporting films, providing mechanical strength and preventing penetration of corrosion materials into the operating film at high operating temperatures. The supporting films could be produced from the same material or material with linear expansion coefficients equal or close to that of the operating film material. Built-in mechanical stress can cause not only deformation but also a break of the film during its exploitation in a wide range of temperatures. In the inventive structure the thermal stresses in the operating film during an emission from its surface are lower due to good thermal contact with supporting films.

公开(公告)号：US5537084A

公开(公告)日：1996-07-16

申请号：US312609

申请日：1994-09-27

Applicant: Gregory T. Schaeffer

Inventor： Gregory T. Schaeffer

IPC: H01J9/44 ,  H01J23/05 ,  H01J23/213 ,  H01J25/587 ,  H03B1/04 ,  H03B9/10

CPC classification number: H01J9/44 ,  H01J23/05 ,  H01J23/213 ,  H01J25/587

Abstract: An improved low power pulsed anode magnetron is provided having a cylindrical cathode centrally disposed within a plurality of radial anode vanes. An interaction region is provided between the surface of the cathode and the anode vane tips. A ratio of the anode-to-cathode space over the center-to-center distance between adjacent vane tips is within a range between 0.95 and 1.05. The cathode is joined to a magnetic polepiece assembly which channels magnetic flux to the interaction region. Both the cathode and the polepiece are mechanically adjustable from external to the magnetron to reposition the cathode and polepiece with respect to the anode vanes. The cathode surface is formed from an active nickel alloy which is cleaned by a chemical process followed by a high temperature and vacuum firing. An emissive surface is applied over the cleaned cathode surface. The output spectrum of the magnetron is calibrated by applying a sequential pulsed input of increasing amplitude, and adjusting the relative cathode-anode position until the frequency spectrum remains constant.

公开(公告)号：US5422542A

公开(公告)日：1995-06-06

申请号：US15549

申请日：1993-02-09

Applicant: Gregory T. Schaeffer

Inventor： Gregory T. Schaeffer

IPC: H01J9/44 ,  H01J23/05 ,  H01J23/213 ,  H01J25/587 ,  H01J25/50

CPC classification number: H01J9/44 ,  H01J23/05 ,  H01J23/213 ,  H01J25/587

Abstract: An improved low power pulsed anode magnetron is provided having a cylindrical cathode centrally disposed within a plurality of radial anode vanes. An interaction region is provided between the surface of the cathode and the anode vane tips. A ratio of the anode-to-cathode space over the center-to-center distance between adjacent vane tips is within a range between 0.95 and 1.05. The cathode is joined to a magnetic polepiece assembly which channels magnetic flux to the interaction region. Both the cathode and the polepiece are mechanically adjustable from external to the magnetron to reposition the cathode and polepiece with respect to the anode vanes. The cathode surface is formed from an active nickel alloy which is cleaned by a chemical process followed by a high temperature and vacuum firing. An emissive surface is applied over the cleaned cathode surface. The output spectrum of the magnetron is calibrated by applying a sequential pulsed input of increasing amplitude, and adjusting the relative cathode-anode position until the frequency spectrum remains constant.

Abstract translation: 提供了一种改进的低功率脉冲阳极磁控管，其具有集中设置在多个径向阳极叶片内的圆柱形阴极。 在阴极表面和阳极叶片尖端之间提供相互作用区域。 阳极与阴极之间的空间相对于相邻叶片尖端之间的中心距离之比在0.95和1.05之间。 阴极连接到将磁通量通向相互作用区域的磁极组件。 阴极和极靴都可以从外部到磁控管机械调节，以使阴极和极靴相对于阳极叶片重新定位。 阴极表面由活性镍合金形成，其通过化学过程进行清洁，随后进行高温和真空烧制。 在清洁的阴极表面上施加发射表面。 磁控管的输出光谱通过施加递增振幅的顺序脉冲输入进行校准，并调整相对阴极 - 阳极位置，直到频谱保持恒定。

公开(公告)号：US3988636A

公开(公告)日：1976-10-26

申请号：US562353

申请日：1975-03-26

Applicant: Masami Sato ,  Hiroshi Hisada ,  Tomokatsu Oguro

Inventor： Masami Sato ,  Hiroshi Hisada ,  Tomokatsu Oguro

IPC: A23L25/00 ,  H01J23/05 ,  H01J25/50

CPC classification number: H01J23/05

Abstract: In a magnetron comprising a cathode electrode, an anode electrode surrounding the cathode electrode and end shields mounted on the opposite ends of the cathode electrode, the inner surfaces of one or both end shields are provided with thin layers of a powder of tungsten, molybdenum, or alloys thereof.

Abstract translation: 在包括阴极电极的磁控管和围绕阴极的阳极和安装在阴极电极的相对端上的端屏蔽件之间，一个或两个端盖的内表面设置有钨，钼， 或其合金。