公开(公告)号：JP2008234907A

公开(公告)日：2008-10-02

申请号：JP2007070519

申请日：2007-03-19

Applicant: Nec Microwave Inc ,  Necマイクロ波管株式会社

Inventor： CHIBA TORU ,  NAKAZATO KOHEI

IPC: H01J23/34

CPC classification number: H01J19/16 ,  H01J1/13 ,  H01J23/04 ,  H01J25/34 ,  H03B9/08

Abstract: PROBLEM TO BE SOLVED: To provide a power supply unit capable of shortening a preheating time by a heater which is necessary in recovering from a power failure state or powering-on without causing the instability of operation, a high-frequency circuit system, and a heater voltage control method. SOLUTION: In recovering from a power failure, a voltage higher than that in a normal operation is supplied to a heater, and, after a lapse of a preset time, a voltage supplied to the heater is changed over to a voltage in the normal operation, and a control signal for starting the operation of an electron tube is outputted. Alternatively, in turning power on, the rate of change of a heater current is determined in each period of time, when the rate of change is set to a value not larger than a preset threshold, a voltage higher than that in the normal operation is supplied to the heater; and, after a lapse of the preset time, the voltage to be supplied to the heater is changed over to the voltage in the normal operation, and a control signal for starting the operation of the electron tube is outputted. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种电源单元，其能够通过加热器缩短预热时间，所述加热器是从停电状态恢复或加电而不引起操作不稳定所需要的，高频电路系统 ，以及加热器电压控制方法。 解决方案：在从电源故障中恢复时，将高于正常操作的电压提供给加热器，并且在经过预设时间之后，将提供给加热器的电压转换为 输出正常操作和用于开始电子管操作的控制信号。 或者，在接通电源时，在每个时间段中确定加热器电流的变化率，当变化率设定为不大于预设阈值的值时，比正常运行中的电压高 供应给加热器; 并且在经过预设时间之后，将要提供给加热器的电压转换为正常操作中的电压，并且输出用于开始电子管操作的控制信号。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009252444A

公开(公告)日：2009-10-29

申请号：JP2008097121

申请日：2008-04-03

Applicant: Nec Microwave Inc ,  Necマイクロ波管株式会社

Inventor： CHIBA TORU

IPC: H01J23/027

CPC classification number: H01J23/027 ,  H01J23/0275 ,  H01J25/34

Abstract: PROBLEM TO BE SOLVED: To provide a collector electrode contributing to further downsizing and a higher output of an electron tube, and an electron tube equipped with the same.
SOLUTION: The collector electrode provided by the electron tube is formed with the use of a composite material of molybdenum and copper, or a composite material of tungsten and copper.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种有助于进一步减小尺寸和更高输出的电子管的集电极以及配备该集电极的电子管。 解决方案：由电子管提供的集电极使用钼和铜的复合材料或钨和铜的复合材料形成。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009016240A

公开(公告)日：2009-01-22

申请号：JP2007178238

申请日：2007-07-06

Applicant: Nec Microwave Inc ,  Necマイクロ波管株式会社

Inventor： SOGA KAZUHITO ,  CHIBA TORU

IPC: H01J23/40 ,  H01J23/50

CPC classification number: H01J23/50 ,  H01J25/34

Abstract: PROBLEM TO BE SOLVED: To provide a traveling wave tube suppressing heat conductivity reduction of a contact part between a metal tape and a coaxial inner conductor to suppress a reduction in heat radiating capacity of heat from a helix.
SOLUTION: The traveling wave tube includes the helix realizing mutual action of an externally input high frequency signal and electron beams, the U-shaped metal tape attached to an end of the helix at its bottom and the coaxial internal conductor inputting/outputting the high frequency signal to/from the helix.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种抑制金属带和同轴内导体之间的接触部分的导热率降低的行波管，以抑制来自螺旋线的热量的散热能力的降低。

解决方案：行波管包括实现外部输入的高频信号和电子束的相互作用的螺旋线，附接到其底部的螺旋的末端的U形金属带和同轴内部导体输入/输出 来自/来自螺旋的高频信号。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006127899A

公开(公告)日：2006-05-18

申请号：JP2004314232

申请日：2004-10-28

Applicant: Nec Microwave Inc ,  Necマイクロ波管株式会社

Inventor： MUNEHIRO TAKATSUGU ,  CHIBA TORU

IPC: H01J23/06

CPC classification number: H01J23/065 ,  H01J3/024 ,  H01J2225/14

Abstract: PROBLEM TO BE SOLVED: To provide an electron gun with little individual difference due to variation in manufacture, and with good electron emission property.
SOLUTION: An electron gun is provided with a cathode pellet discharging electrons, a heater cap integrating a heater imparting heat energy for discharging electrons to the cathode pellet, a Wehnelt electrode for focusing an electron beam in which the average angle of a surface against the outermost shell of the electron beam is formed to be a shape matching a pierced angle, and a retainer installing and fixing the cathode pellet on the heater cap by restraining the periphery edge of the cathode pellet to the heater cap and a part covering the periphery edge of an electron discharging surface of the cathode pellet works as a part of the Wehnelt electrode.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供由于制造变化而具有很小的个体差异的电子枪，并且具有良好的电子发射性能。 解决方案：电子枪设有排出电子的阴极粒子，加热器帽集成了赋予阴极丸的电子放出热能的加热器，用于聚焦电子束的Wehnelt电极，其中表面的平均角 电子束的最外壳形成为与穿刺角相匹配的形状，保持器通过将阴极丸的周缘限制在加热器盖上而将阴极丸安装并固定在加热器帽上， 阴极颗粒的电子放电表面的外围边缘作为Wehnelt电极的一部分。 版权所有（C）2006，JPO＆NCIPI