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公开(公告)号：US3906278A
公开(公告)日：1975-09-16
申请号：US51448474
申请日：1974-10-15
CPC分类号： H01J29/025
摘要： An electron beam tube of the type having a fine conductive mesh adjacent a target is described, the fine mesh being clamped around its periphery between two annular members. An annular damping washer of flexible material is also clamped between the two members and extends inwards towards the picture area of the fine mesh. The two members are in addition dished away from one another and from the fine mesh in a region inwards of the clamping region so that the annular damping washer exhibits corrugations in the space between the fine mesh and the dished portion of the Clamping member which contacts the washer, the washer thereby contacting the fine mesh at a number of different places and restricting the degree to which the washer may lift away from the conductive mesh.
摘要翻译： 描述了具有邻近目标物的细小导电网的类型的电子束管，细网被围绕其周边夹在两个环形构件之间。 柔性材料的环形阻尼垫圈也夹在两个构件之间并向内朝向细网的图像区域延伸。 另外两个构件相互离开并且从夹紧区域内的区域中的细网状物排出，使得环形阻尼垫圈在细网和夹紧构件的凹陷部分之间的空间中呈现波纹，夹紧构件接触 垫圈，因此垫圈在许多不同的位置处接触细网，并限制垫圈可以从导电网移开的程度。
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公开(公告)号：US3891887A
公开(公告)日：1975-06-24
申请号：US40304373
申请日：1973-10-03
CPC分类号： H01J29/44 , H01J29/458
摘要： A semiconductor crystal having a target area and an oxide insulation layer on the same planar surface and a barrier of Xray absorbent material in a direct line between the target and the interface between the semiconductor material and the oxide insulation layer to protect the interface against X-rays.
摘要翻译： 在同一平面上具有目标区域和氧化物绝缘层的半导体晶体以及在靶与半导体材料与氧化物绝缘层之间的界面之间的直线上的X射线吸收材料的屏障，以保护界面免受 X光片。
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公开(公告)号：US3885221A
公开(公告)日：1975-05-20
申请号：US39685973
申请日：1973-09-13
摘要： The invention relates to resonant devices such as cavity magnetrons having a plurality of resonant cavities in a common block of which at least two adjacent cavities exhibit magnetic fields of opposing phase. In order to achieve coupling to or from the device a co-axial transmission line formed by an annular hole of constant cross sectional dimensions is provided extending into the block, such that a portion of the annular hole to one side of the inner wall forming member breaks into one of the two cavities and a portion of the annular hole to the opposite side of the inner wall forming member breaks into the other of the two cavities. The transmission line may be used to effect tuning of the device by coupling tuning means to the end of the hole remote from the cavities.
摘要翻译： 本发明涉及谐振装置，例如腔体磁控管，其在共同块中具有多个谐振腔，其中至少两个相邻的腔呈现出相对相位的磁场。 为了实现与装置的耦合，设置有由横截面尺寸恒定的环形孔形成的同轴传输线延伸到块中，使得环形孔的一部分到内壁形成构件的一侧 分解成两个空腔中的一个，并且环形孔的与内壁形成构件的相对侧的一部分分裂成两个空腔中的另一个。 传输线可以用于通过将调谐装置耦合到远离空腔的孔的端部来实现装置的调谐。
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4.发明授权
公开(公告)号：US3885192A
公开(公告)日：1975-05-20
申请号：US44288474
申请日：1974-02-15
IPC分类号： H01J23/087 , H01J23/08
CPC分类号： H01J23/0873
摘要： A fundamental coupled cavity travelling wave tube including between electron gun and collector a stack of apertured plates assembled to provide a series of successive cavities coupled for the fundamental mode of operation and in which there is a magnetic pole piece at each nth cavity (n is an integer greater than unity), constituted by a relatively thick apertured ferromagnetic plate between two thinner ferro-magnetic apertured plates, the thinner plates extending the magnetic path provided by the thicker plate towards the electron beam path.
摘要翻译： 基本耦合的空腔行波管包括电子枪和集电器之间的一组有孔的板，其组装成提供一系列连续的空腔，用于基本工作模式，并且其中在每个第n个腔处有一个磁极片（n是一个 大于1的整数），由较薄的铁磁多孔板之间的相对较厚的有孔铁磁板构成，较薄的板将较厚板提供的磁路延伸到电子束路径。
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公开(公告)号：US3875470A
公开(公告)日：1975-04-01
申请号：US42463273
申请日：1973-12-13
发明人： PICKERING ALAN HUGH
摘要： A combined magnetron and resonant stabilising filter structure formed by a multi-cavity magnetron co-axially surrounded by an outer resonant cavity, in-phase cavities being coupled to the outer cavity through coupling apertures with a relatively small coupling factor and in-phase cavities being electrically locked together by straps for operation exclusively in the pi mode.
摘要翻译： 由通过外部谐振腔同轴地包围的多腔磁控管形成的组合磁控管和谐振稳定滤波器结构，同相腔通过具有相对小的耦合因子和同相腔的耦合孔耦合到外腔 通过皮带电锁定在一起，仅在pi模式下进行操作。
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公开(公告)号：US3846664A
公开(公告)日：1974-11-05
申请号：US33493973
申请日：1973-02-22
CPC分类号： H01J25/38
摘要： A travelling wave tube having a coupled cavity slow wave structure is provided with velocity tapering to slow the speed of travel of an applied radio frequency wave at the output end of the tube so that it is maintained substantially in step with the decreasing velocity of the electron beam. Such velocity tapering is achieved in the present invention by varying the resonant frequency of the coupling elements coupling adjacent cavities of the slow wave structure in accordance with a predetermined tapering law so that the resonant frequency of the coupling elements towards the output end of the tube approaches the resonant frequency of the cavities.
摘要翻译： 具有耦合腔慢波结构的行波管被提供有速度渐缩以减慢在管的输出端施加的射频的行进速度，使得其以电子速度的降低基本上保持步进 光束。 在本发明中通过根据预定的渐变定律改变连接慢波结构的相邻腔的耦合元件的谐振频率来实现这种速度渐缩，使得耦合元件朝向管输出端的谐振频率接近 空腔的谐振频率。
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公开(公告)号：US3786301A
公开(公告)日：1974-01-15
申请号：US3786301D
申请日：1972-11-09
发明人： CHALMERS P
CPC分类号： H01J25/38
摘要： A phase modulated travelling wave tube in which amplitude modulation of the signal passing through the tube is reduced by providing a wave retarding structure which is in two electrically isolated portions arranged co-axially in line with one another, and applying modulating d.c. potential to the portion of the wave retarding structure nearer the electron gun.
摘要翻译： 一种相位调制行波管，其中通过提供一个阻波结构减少了通过该管的信号的幅度调制，该阻波结构位于彼此同轴地布置的两个电隔离部分中，并且施加调制直流。 靠近电子枪的波长延迟结构部分的电位。
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公开(公告)号：US3731140A
公开(公告)日：1973-05-01
申请号：US3731140D
申请日：1971-07-14
发明人： LEWIS P
IPC分类号： H01J23/213 , H01J25/50
CPC分类号： H01J23/213
摘要： The invention is concerned with tunable multi cavity magnetrons and provides a tuning arrangement having only two movable tuning elements. Each of the elements is associated with one of a pair of adjacent cavities. The two movable elements are moved together and are arranged such that for any position of the tuning elements the two adjacent cavities are tuned to identical frequencies.
摘要翻译： 本发明涉及可调多腔磁控管，并且提供了仅具有两个可移动调谐元件的调谐装置。 每个元件与一对相邻的空腔中的一个相关联。 两个可移动元件一起移动并且被布置成使得对于调谐元件的任何位置，两个相邻的空腔被调谐到相同的频率。
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公开(公告)号：US3644771A
公开(公告)日：1972-02-22
申请号：US3644771D
申请日：1970-09-10
IPC分类号： H01J23/087 , H01F7/00 , H01J3/04
CPC分类号： H01J23/0873
摘要： An electron discharge tube, for example a travelling wave tube, which employs a periodic magnetic field, is provided with at least one pair of adjacent magnets with larger spacing in the axial direction than is employed between the magnets of other adjacent pairs. The perturbation of the field due to the larger spacing is reduced by providing only one pole piece interposed between the two magnets on each side of the larger spacing. The remaining pairs of magnets may have normally spaced pole pieces. The larger spacing may be occupied by a waveguide connection.
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