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1.发明公开Linear-beam cavity circuits with non-resonant RF loss slabs 失效Linearstrahl-Hohlräumeschaltungenmit Nicht resonanceen RF-Dämpfungsplatten。
公开(公告)号：EP0660363A1
公开(公告)日：1995-06-28
申请号：EP94118836.9
申请日：1994-11-30
摘要： Lossy slabs (46) are provided in linear-beam tubes such as coupled-cavity traveling wave tubes or klystrons to produce a more level tube response over its full operating band, and to eliminate oscillations at the upper cut-off frequency in the TWTs. The slab thicknesses are selected to produce a substantially non-resonant field of about one-quarter wavelength within the slab (46) when the tube is operated within its passband. The slabs (46) are arranged within openings of a tube structure (36, 42) and are formed from a dielectric material having a conductive mixture of at least about 15%.
摘要翻译： 有线平板（46）设置在诸如耦合腔行波管或速调管之类的直线束管中，以在其全部工作频带上产生更高级的管响应，并且消除TWT中的上截止频率处的振荡。 当管在其通带内操作时，选择板坯厚度以在板坯（46）内产生约四分之一波长的基本非谐振场。 板坯（46）被布置在管状结构（36,42）的开口内，并且由具有至少约15％的导电混合物的电介质材料形成。
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2.发明公开
公开(公告)号：EP0090958A1
公开(公告)日：1983-10-12
申请号：EP83102331.2
申请日：1983-03-10
发明人： Greco, Norman A. , Arkoff, Simon Z.
IPC分类号： H01J23/30
CPC分类号： H01J23/30
摘要： A termination device (48') for absorbing RF energy waves in the termination chamber (34) of a travelling wave tube. The termination device is formed by modifying two wedge shaped termination devices of the prior art. Specifically, two prior art single wedge termination devices are sliced in half to produce two wedges each one half the thickness of the 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 (48') 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.
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公开(公告)号：EP1312102B1
公开(公告)日：2006-08-23
申请号：EP01959779.8
申请日：2001-07-05
申请人： AmpWaveTech, LLC
发明人： KOSMAHL, Henry G.
CPC分类号： H01J23/165 , H01J23/26 , H01J23/54 , H01J2225/38
摘要： A structure to eliminate non-fundamental space harmonics in helical traveling wave tubes (10) is disclosed. The helix (18) radius (24a, 24b) and pitch (22a, 22b) are simultaneously varied over a short distance to improve the efficiency and performance of the tube (10). This new geometry, an adverse space harmonics taper (ASHT), renders the fundamental phase velocity invariant to frequency and distance effects, while adversely affecting all other space harmonics. Another aspect of the invention reduces the temperature of the helix (18) and further improves tube efficiency, so that electronic efficiencies approach 30% in a linear performance region.
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公开(公告)号：EP0595622A3
公开(公告)日：1995-04-05
申请号：EP93308577.1
申请日：1993-10-27
申请人： Litton Systems, Inc.
IPC分类号： H01J23/30
CPC分类号： H01J23/30
摘要： A loss button (80) for a traveling wave tube (10) has front and rear planar surfaces (92,94) of its ceramic pill-shaped button body (88) which are of coated metallic composition. The periphery is uncoated to permit r.f. energy to enter the button (80) through the cavity (82) of the planar, metallic, spacer (16) into which the button (80) is inserted. By coating the body surfaces (92,94), the button itself acts as a resonant cavity for attenuation of a predetermined bandwidth so that the dimensional changes that occur during heating to the surrounding and adjacent metallic elements, including the cavity (82) in the spacer (16) for receiving the button (80) and the adjacent braze washers, will not affect the attenuation band of the tube (10).
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5.发明授权
公开(公告)号：EP0102288B1
公开(公告)日：1987-06-10
申请号：EP83401630.5
申请日：1983-08-09
申请人： THOMSON-CSF
发明人： Duret, Robert , Henry, Dominique
IPC分类号： H01J23/30
CPC分类号： H01J23/30
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6.发明公开
公开(公告)号：EP0102286A1
公开(公告)日：1984-03-07
申请号：EP83401621.4
申请日：1983-08-05
申请人： THOMSON-CSF
发明人： Fleury, Georges
IPC分类号： H01J23/30
CPC分类号： H01J23/30
摘要： Pour assurer la stabilité des tubes comportant une ligne à retard du type à plafonds et anneaux ou du type à plafonds et barreaux, on dispose des fentes résonnantes (15) sur les plafonds (4) de la ligne (10).
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公开(公告)号：EP4036954A2
公开(公告)日：2022-08-03
申请号：EP22153632.9
申请日：2022-01-27
申请人： THALES
发明人： ANDRE, Frédéric
IPC分类号： H01J23/027 , H01J23/30 , H01J25/42
摘要： Tube à ondes progressives comprenant une hélice (1) reliée par des montants (3) à une enceinte à vide (2), chaque montant (3) en matériau électriquement isolant étant recouvert d'un matériau électriquement conducteur (10) de conductivité électrique comprise entre 1000 et 100000 S.m-1, sur une partie du montant (3) s'étendant de l'extrémité du montant reliée à l'hélice (1) vers l'extrémité du montant reliée à l'enceinte à vide (2) correspondant à une hauteur comprise entre 10% et 50% du montant.
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公开(公告)号：EP0595621A1
公开(公告)日：1994-05-04
申请号：EP93308576.3
申请日：1993-10-27
申请人： Litton Systems, Inc.
CPC分类号： C04B37/026 , B23K35/007 , C04B2237/122 , C04B2237/123 , C04B2237/125 , C04B2237/366 , C04B2237/403 , C04B2237/54 , C04B2237/72 , C04B2237/76 , H01J23/005 , H01J23/30
摘要： A method for bonding thermally-mismatched elements of a traveling wave tube (10) employs a metallic plate (68) of undulating character. The plate (68) 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 (46) and an adjacent sever pole piece (54) of copper. Through either a brazing or a sintering process, pluralities of bonds are formed at points of tangency between the plate (68) 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： 用于接合行波管（10）的热失配元件的方法采用波动特性的金属板（68）。 板（68）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（46）和铜的相邻的极片（54）。 通过钎焊或烧结工艺，在板（68）和不同热膨胀系数的两个元件之间的切点处形成多个键。 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：EP0290148A3
公开(公告)日：1990-11-22
申请号：EP88303317.7
申请日：1988-04-13
CPC分类号： H01P1/22 , H01J23/30 , H05K1/0237 , H05K3/245
摘要： To selectively and controllably increase rf surface power loss in microwave components, the component surfaces are overcoated with a suspension of conductive particles in a viscous binder of thickness less than a wavelength at the operating frequency. The binder is compounded so as to fire to a glassy matrix that is a durable, heat-resistant and vacuum-compatible dielectric. The metal particle size, which is selected to fit within the coating thickness, is preferably large compared with the rf skin depth of the conductive particles, but no smaller than one-quarter skin depth.
摘要翻译： 为了选择性和可控地增加微波组件中的rf表面功率损耗，组件表面用厚度小于工作频率波长的粘性粘合剂中的导电颗粒的悬浮液覆盖。 将粘合剂复合以便发射到耐久，耐热和真空兼容的电介质的玻璃质基质。 选择适合于涂层厚度的金属粒度优选比导电颗粒的rf皮肤深度大，但不小于四分之一的皮肤深度。
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10.发明公开Surface coating with very high rf loss for microwave components 失效Oberflächenschichtmit sehr hoher RF-DämpfungfürMikrowellenunterteile。
公开(公告)号：EP0290148A2
公开(公告)日：1988-11-09
申请号：EP88303317.7
申请日：1988-04-13
CPC分类号： H01P1/22 , H01J23/30 , H05K1/0237 , H05K3/245
摘要： To selectively and controllably increase rf surface power loss in microwave components, the component surfaces are overcoated with a suspension of conductive particles in a viscous binder of thickness less than a wavelength at the operating frequency. The binder is compounded so as to fire to a glassy matrix that is a durable, heat-resistant and vacuum-compatible dielectric. The metal particle size, which is selected to fit within the coating thickness, is preferably large compared with the rf skin depth of the conductive particles, but no smaller than one-quarter skin depth.
摘要翻译： 为了选择性和可控地增加微波组件中的rf表面功率损耗，组件表面用厚度小于工作频率波长的粘性粘合剂中的导电颗粒的悬浮液覆盖。 将粘合剂复合以便发射到耐久，耐热和真空兼容的电介质的玻璃质基质。 选择适合于涂层厚度的金属粒度优选比导电颗粒的rf皮肤深度大，但不小于四分之一的皮肤深度。
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