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公开(公告)号：US5929720A
公开(公告)日：1999-07-27
申请号：US713411
申请日：1996-09-13
CPC分类号： H01J23/40 , H01Q19/191
摘要： An electromagnetic wave matching element makes it possible to reduce the cost of a transmission system to a great degree. An electromagnetic wave matching element is adapted to allow electromagnetic wave beams incident from an entrance to be reflected by using plural mirrors to couple these reflected electromagnetic wave beams to an external transmission system through an exit. Mirrors are used that have a shape adapted to receive the plural electromagnetic waves in a beam form and to output electromagnetic wave beams having a predetermined distribution in which the number of the output electromagnetic waves is different from the number of the received electromagnetic waves.
摘要翻译： 电磁波匹配元件可以在很大程度上降低传输系统的成本。 电磁波匹配元件适用于允许从入口入射的电磁波通过使用多个反射镜来反射，以将这些反射的电磁波束通过出口耦合到外部传输系统。 使用具有适于以波束形式接收多个电磁波的形状的反射镜，并且输出具有预定分布的电磁波束，其中输出电磁波的数量与接收的电磁波的数量不同。
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2.发明授权
公开(公告)号：US5719470A
公开(公告)日：1998-02-17
申请号：US458483
申请日：1995-06-02
申请人： Yosuke Hirata , Mitsuo Komuro , Yoshika Mitsunaka
发明人： Yosuke Hirata , Mitsuo Komuro , Yoshika Mitsunaka
CPC分类号： H01J25/025 , H01J23/40
摘要： An electron beam generated by an electron gun is oscillated in a cavity resonator and output as a millimeter electromagnetic wave. The output electromagnetic wave is transmitted to a cylindrical mode converter. The inner wall surface of this mode converter has a plurality of sets of ridges and grooves spirally formed at equal pitches so as to gradually change the degree of corrugation in the transmission direction of the electromagnetic wave. The mode converter separates the input electromagnetic wave from the cavity resonator into a plurality of electromagnetic waves having the same power distribution. The output electromagnetic waves from the mode converter are transformed into wave beams by mirror systems and output to the outside of a gyrotron from output windows provided in a one-to-one correspondence with these electromagnetic waves.
摘要翻译： 由电子枪产生的电子束在空腔谐振器中振荡并作为毫米电磁波输出。 输出电磁波传输到圆柱模式转换器。 该模式转换器的内壁表面具有以等间距螺旋形成的多组脊和槽，以逐渐改变电磁波的传输方向的波纹度。 模式转换器将输入电磁波与空腔谐振器分离成具有相同功率分布的多个电磁波。 来自模式转换器的输出电磁波通过镜系统变换成波束，并从与这些电磁波一一对应地提供的输出窗口输出到陀螺仪的外部。
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公开(公告)号：US06476558B2
公开(公告)日：2002-11-05
申请号：US09864883
申请日：2001-05-25
IPC分类号： H01J2500
CPC分类号： H01J25/025 , H01J23/40 , H01P1/16
摘要： In a substantially circular waveguide constituting a mode converter in a gyrotron tube, there is a region whose transverse inner surface shape changes to a non-true circular shape from a true circular shape in a range of 0 mm to 5 mm toward a radiation aperture from the incident side. Therefore, an undesirable cavity resonator which causes parasitic oscillation can be prevented from being formed in the vicinity of an inlet of the mode converter. Therefore, the parasitic oscillation of the mode converter can be suppressed, and a conversion efficiency of the converter can be enhanced, because of the effective length of the mode converter can be enhanced in the limited actual length.
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公开(公告)号：US5266868A
公开(公告)日：1993-11-30
申请号：US799309
申请日：1991-11-27
CPC分类号： H01J25/025 , H01J23/54
摘要： There is provided a gyrotron including a quasi-optical mode converter wherein a solid dielectric layer such as silicon carbide for absorbing unnecessary millimeter waves generated by diffraction of the quasi-optical mode converter is arranged in annular shape in the periphery of the quasi-optical mode converter, and millimeter absorption fluid can be supplied to the periphery of the mode converter in a predetermined direction through vacuum barrier walls formed by a dielectric member, thereby efficiently absorbing the diffracted millimeter wave which is the cause of generating heat.
摘要翻译： 提供了一种包括准光学模式转换器的陀螺仪，其中用于吸收由准光学模式转换器的衍射产生的不必要的毫米波的固体介电层（例如碳化硅）在准光学模式的周围被布置成环形 转换器和毫米吸收流体可以通过由介电构件形成的真空阻挡壁沿预定方向提供给模式转换器的周边，从而有效地吸收作为发热的原因的衍射毫米波。
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