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1.发明授权RF radiation absorbing material disposed between the cathode and anode of an electron beam tube 失效RF辐射吸收材料设置在电子束管的阴极和阳极之间
公开(公告)号：US5691667A
公开(公告)日：1997-11-25
申请号：US211030
申请日：1994-05-17
申请人： Alan Hugh Pickering , Geoffrey John Rowlands , Roy Heppinstall , Edward Stanley Sobieradzki , Geoffrey Thomas Clayworth
发明人： Alan Hugh Pickering , Geoffrey John Rowlands , Roy Heppinstall , Edward Stanley Sobieradzki , Geoffrey Thomas Clayworth
CPC分类号： H03F3/58 , H01J23/30 , H01J2225/04 , H01J2225/12
摘要： An r.f. radiation absorbing material able to hold off a 30 to 40 kV voltage difference is described as formed by a silicon rubber loaded with ferrite particles. The material is used to reduce self-oscillation in amplifiers.
摘要翻译： PCT No.PCT / GB92 / 01684第 371日期：1994年5月17日 102（e）日期1994年5月17日PCT提交1992年9月14日PCT公布。 出版物WO93 / 06632 日期：1993年1月4日 能够抑制30〜40kV电压差的放射线吸收材料由负载有铁氧体颗粒的硅橡胶形成。 该材料用于减少放大器中的自振荡。
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2.发明授权
公开(公告)号：US5501390A
公开(公告)日：1996-03-26
申请号：US287545
申请日：1994-08-08
CPC分类号： C04B37/026 , B23K35/007 , H01J23/005 , H01J23/30 , C04B2237/122 , C04B2237/123 , C04B2237/125 , C04B2237/366 , C04B2237/403 , C04B2237/54 , C04B2237/72 , C04B2237/76
摘要： A method for bonding thermally-mismatched elements of a traveling wave tube employs a metallic plate of undulating character. The plate is located at the region of the interface between tube elements formed of materials of materially-differing thermal character such as the ceramic termination piece and an adjacent sever pole piece of copper. Through either a brazing or a sintering process, pluralities of bonds are formed at points of tangency between the plate and the two elements of differing thermal expansion coefficients. As a result, a good heat flow path, accompanied by a more stable r.f. interface, is formed between the materials that is not subject to fracture as are prior art diffusion bonds.
摘要翻译： 用于结合行波管的热失配元件的方法采用波动特性的金属板。 该板位于由具有实质上不同的热特性的材料形成的管元件之间的界面区域，例如陶瓷端接件和相邻的铜极片。 通过钎焊或烧结工艺，在板和不同热膨胀系数的两个元件之间的相切点处形成多个键。 结果，良好的热流路径，伴随着更稳定的r.f. 界面，在现有技术的扩散接合之间形成在不会破裂的材料之间。
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公开(公告)号：US5341066A
公开(公告)日：1994-08-23
申请号：US939305
申请日：1992-09-02
CPC分类号： H01J23/165 , H01J23/26 , Y10T29/49016
摘要： The present invention is an anisotropically loaded helix assembly for use in a traveling-wave tube, and the corresponding method for making the same. The present invention includes a helix circuit concentrically supported within a conductive cylindrical housing by a plurality of dielectric support members. The present invention effects an improved efficiency and bandwidth in the performance of TWT by the material used to form the dielectric support members, the shape of the dielectric support members and the manner by which the anisotropic load is affixed to the dielectric support members.
摘要翻译： 本发明是用于行波管的各向异性负载的螺旋组件及其制造方法。 本发明包括通过多个介电支撑构件同心地支撑在导电圆柱形壳体内的螺旋电路。 本发明通过用于形成电介质支撑构件的材料，电介质支撑构件的形状以及将各向异性负载固定到电介质支撑构件的方式来实现TWT性能的提高的效率和带宽。
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4.发明授权Radio frequency accelerating cavity having slotted irises for damping certain electromagnetic modes 失效射频加速腔具有用于阻尼某些电磁模式的开槽虹膜
公开(公告)号：US5017881A
公开(公告)日：1991-05-21
申请号：US364304
申请日：1989-06-12
申请人： Robert B. Palmer
发明人： Robert B. Palmer
摘要： An accelerating cavity having one or more iris structures mounted therein for strongly damping unwanted frequencies that are generated in the cavity by bunches of particles in a particle beam that is accelerated through the cavity during its operation. Each of the iris structures is characterized by containing a plurality of radial slots therein that extend from the central aperture through the iris member to the perimeter thereof. The outer end of each of the radial slots includes an enlarged portion that is effective to prevent undesired frequencies from being reflected back into the center aperture of the iris member. Waveguide means connect the outer ends of the radial slots to frequency damping means or to a dump or dumps.
摘要翻译： 具有安装在其中的一个或多个虹膜结构的加速腔，用于通过在其操作期间加速通过空腔的粒子束中的一束粒子来强烈地阻止在空腔中产生的不期望的频率。 每个虹膜结构的特征在于在其中包含多个径向槽，其中心孔从中心孔延伸通过虹膜构件到其周边。 每个径向狭槽的外端部包括有效地防止不期望的频率被反射回到虹膜构件的中心孔中的扩大部分。 波导装置将径向槽的外端连接到频率阻尼装置或者转储或倾倒。
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公开(公告)号：US4455507A
公开(公告)日：1984-06-19
申请号：US364947
申请日：1982-04-02
申请人： Norman A. Greco , Simon Z. Arkoff
发明人： Norman A. Greco , Simon Z. Arkoff
CPC分类号： H01J23/30
摘要： A termination device for absorbing RF energy waves in the termination chamber of a traveling wave tube. The termination device is formed by modifying two wedge shaped termination devices of the prior art. Specifically, two well known single wedge termination devices are sliced in half to produce two wedges each one half the thickness of the prior art single wedge device. The two halves are positioned with their newly formed surface, formed by the slicing, in opposed facing contact. The new double wedge thus has the same thickness as the prior single wedge and is readily accommodated within the termination chamber. The double wedge termination device greatly reduces small signal gain variations across the operating frequency band of the traveling wave tube.
摘要翻译： 一种用于吸收行波管终端室中的RF能量波的终端装置。 端接装置通过改变现有技术的两个楔形端接装置来形成。 具体来说，两个众所周知的单楔形终端装置被切成两半，以产生现有技术的单个楔形装置的厚度的两个楔形。 两个半部分以其新形成的表面定位，通过切片形成在相对的面对的接触中。 因此，新的双楔形物具有与先前的单个楔块相同的厚度，并且容易地容纳在终止腔室内。 双楔形终端装置大大减少了行波管的工作频带上的小信号增益变化。
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公开(公告)号：US4414486A
公开(公告)日：1983-11-08
申请号：US281297
申请日：1981-07-07
申请人： Kunio Tsutaki , Takao Kageyama
发明人： Kunio Tsutaki , Takao Kageyama
CPC分类号： H01J23/30
摘要： Two coupled cavity type, slow-wave circuits are separated, with a drift space section between them. An electron beam and an electromagnetic wave, which do not interact with each other, over a certain length, are in the drift space. A waveguide type non-reflective termination structure has a waveguide axis directed in the same direction as the electron beam and is coupled to the cavity, slow-wave circuits with respect to a high frequency wave disposed in the drift space section. With such a construction, a traveling wave tube is formed with a PPM focusing and with a non-reflective termination structure includes a waveguide member having a through-hole for passing an electron beam and two waveguides formed on the opposite sides of the through-hole. A lossy ceramic member is disposed within one of the two waveguides for a forwardly traveling wave and another lossy ceramic member is disposed in the other waveguide for a backwardly traveling wave. Each of the two waveguides has one end sealingly closed with tapered ceramic members of the forwardly traveling wave and for the backwardly traveling wave secured on the respective waveguide walls. During its propagation, an electromagnetic wave is perfectly absorbed by the lossy ceramic members.
摘要翻译： 两个耦合腔型，慢波电路分开，它们之间有漂移空间部分。 在一定长度上彼此不相互作用的电子束和电磁波在漂移空间中。 波导型非反射端接结构具有与电子束相同方向的波导轴，并且耦合到空腔，相对于设置在漂移空间部分中的高频波的慢波电路。 通过这样的结构，用PPM聚焦形成行波管，并且非反射性终端结构包括具有用于通过电子束的通孔的波导构件和形成在通孔的相对侧上的两个波导 。 在两个波导中的一个波导内设置有损耗的陶瓷构件用于向前行进的波，另一个有损耗的陶瓷构件设置在另一波导中用于向后行波。 两个波导中的每一个具有一个端部，其密封地与前行波的锥形陶瓷构件和固定在相应的波导壁上的向后行波密封。 在其传播期间，电磁波被有损耗的陶瓷构件完全吸收。
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公开(公告)号：US4292567A
公开(公告)日：1981-09-29
申请号：US97995
申请日：1979-11-28
CPC分类号： H01J23/30
摘要： In traveling wave tubes with broad bandwidth, such as an octave or more, the gain varies by many dB across the band. One or more lossy circuits inside the tube coupled to the interaction helix-type slow-wave circuit are resonant at frequencies within the operating band. They provide a loss varying with frequency to compensate for the gain variation. The resonant circuits are typically metallized patterns on a dielectric rod which may be a support rod for the interaction circuit. Compared to an external gain equilizer in the drive circuit of the TWT, the internal equalizer is cheaper and provides a better noise figure.
摘要翻译： 在具有宽带宽（例如八度以上）的行波管中，增益在整个频带上变化很多dB。 耦合到相互作用的螺旋型慢波电路的管内的一个或多个有损电路在工作频带内的频率谐振。 它们提供随频率变化的损耗以补偿增益变化。 谐振电路通常是介电棒上的金属化图案，其可以是用于相互作用电路的支撑杆。 与TWT的驱动电路中的外部增益平衡器相比，内部均衡器更便宜，并提供更好的噪声系数。
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公开(公告)号：US4088924A
公开(公告)日：1978-05-09
申请号：US749417
申请日：1976-12-10
申请人： Franz Gross
发明人： Franz Gross
CPC分类号： H01J23/30
摘要： A delay line for travelling-wave tubes, comprising a hollow guide with successive transversely disposed discs having elongated attenuation members which project into the interior of the hollow wave guide, with the longitudinal axes of such attenuation members extending at least approximately parallel to the longitudinal axis of the delay line and mechanically firmly supported in recesses in the transverse discs. The attenuation members are retained by a press or force fit with the transverse discs, and may be provided in the portion thereof surrounded by the associated transverse disc with at least one notch which extends transversely to the longitudinal axes of the members and which is at least partially filled with the ductile material of such associated transverse disc.
摘要翻译： 用于行波管的延迟线，包括具有连续横向设置的盘的空心导向器，其具有突出到中空波导内部的细长衰减构件，这些衰减构件的纵向轴线延伸至少近似平行于纵向轴线 的延迟线并机械地牢固地支撑在横向盘中的凹部中。 衰减构件通过与横向盘的压力或力配合保持，并且可以设置在由相关联的横向盘围绕的部分中，具有横向于构件的纵向轴线延伸的至少一个凹口，并且至少一个凹口 部分地填充这种相关横向盘的延性材料。
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公开(公告)号：US4066927A
公开(公告)日：1978-01-03
申请号：US693840
申请日：1976-06-08
申请人： Franz Gross
发明人： Franz Gross
CPC分类号： H01J23/30
摘要： A delay line for traveling-wave tubes, particularly a wideband low-reflection attenuated line for millimeter waves, in the form of a hollow guide having successive transverse walls which define successive line cells, each of such walls having a central opening for the passage of the electron beam and at least one coupling opening, elongated attentuating members being disposed in the respective cells with their longitudinal axes extending parallel to the longitudinal axis of the delay line. The attenuating members are of like effective length and the matching cell lying immediately ahead of and/or behind the attenuating section of the tube contains, in each case, at least one matching member.
摘要翻译： 用于行波管的延迟线，特别是用于毫米波的宽带低反射衰减线，呈中空引导件的形式，具有限定连续线细胞的连续横向壁，每个这样的壁具有用于通过的中心开口 电子束和至少一个耦合开口，细长的注意部件设置在相应的电池中，其纵向轴线平行于延迟线的纵向轴线延伸。 衰减构件具有相同的有效长度，位于管的衰减部分之前和/或之后的匹配单元在每种情况下包含至少一个匹配构件。
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公开(公告)号：US3970971A
公开(公告)日：1976-07-20
申请号：US583970
申请日：1975-06-05
申请人： Georges Mourier
发明人： Georges Mourier
摘要： A device for attenuating very short parasitic waves which create surface currents at the surface of a conductive wall of a high frequency circuit, said device comprising within an opening provided in the wall, a highly resistive element exhibiting magnetic losses; the surface currents which form a loop around said element, generate therethrough an alternating magnetic field providing magnetic losses which attenuate said parasitic waves.
摘要翻译： 一种用于衰减非常短的寄生波的装置，其在高频电路的导电壁的表面处产生表面电流，所述装置包括设置在壁中的开口内，呈现磁损耗的高电阻元件; 围绕所述元件形成环的表面电流通过其产生交变磁场，提供磁损耗，其衰减所述寄生波。
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