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公开(公告)号：US20130162492A1
公开(公告)日：2013-06-27
申请号：US13820402
申请日：2011-04-20
申请人： Yuuki Kishino , Tsunehisa Marumoto
发明人： Yuuki Kishino , Tsunehisa Marumoto
CPC分类号： H01Q19/104 , H01Q13/06 , H01Q19/134 , H01Q19/18 , H01Q19/193
摘要： Provided is an antenna, including: a dielectric support portion mounted to a tip of a waveguide; and a reflector bonded and fixed to the dielectric support portion. The dielectric support portion includes: an accommodating portion accommodating the reflector therein; and a fall-off preventing arrangement preventing the reflector from falling off under a state in which the reflector is accommodated in the accommodating portion.
摘要翻译： 提供一种天线，包括：安装到波导的尖端的电介质支撑部分; 以及结合并固定到电介质支撑部分的反射器。 电介质支撑部分包括：在其中容纳反射器的容纳部分; 以及防止反射器在反射器容纳在容纳部分中的状态下脱落的脱落防止装置。
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112.发明申请公开(公告)号：US20130057444A1
公开(公告)日：2013-03-07
申请号：US13224066
申请日：2011-09-01
IPC分类号： H01Q19/19
CPC分类号： H01Q19/191 , H01Q19/134 , H01Q19/19 , H01Q19/193
摘要： A dielectric cone radiator sub-reflector assembly for a reflector antenna with a waveguide supported sub-reflector is provided as a unitary dielectric block with a sub-reflector at a distal end. A waveguide transition portion of the dielectric block is dimensioned for coupling to an end of the waveguide. A dielectric radiator portion is provided between the waveguide transition portion and a sub-reflector support portion. An outer diameter of the dielectric radiator portion is provided with a plurality of radial inward grooves and a minimum diameter of the dielectric radiator portion is greater than ⅗ of a sub-reflector diameter of the sub-reflector support surface.
摘要翻译： 具有波导支撑子反射器的反射器天线的介电锥体辐射器子反射器组件被提供为具有在远端的子反射器的整体介质块。 介质块的波导过渡部分的尺寸用于耦合到波导的端部。 介电散热器部分设置在波导过渡部分和副反射器支撑部分之间。 电介质散热器部分的外径设置有多个径向向内的凹槽，并且介电散热器部分的最小直径大于副反射器支撑表面的副反射器直径的。。
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公开(公告)号：US07405708B2
公开(公告)日：2008-07-29
申请号：US11598846
申请日：2006-11-14
申请人： Jiho Ahn , Sergey Bankov , Alexander Davydov
发明人： Jiho Ahn , Sergey Bankov , Alexander Davydov
IPC分类号： H01Q19/14
CPC分类号： H01Q19/19 , H01Q19/193
摘要： An antenna comprises: a main reflector being a body of revolution of arbitrary curve which axis diverges from axis of the revolution; a sub-reflector being a body of the revolution of arbitrary curve along the axis of revolution, having a circle and a vertex pointing to the main reflector and being placed between the circle and the main reflector; a radiator being located along the axis of revolution and being placed between the main reflector and the sub-reflector; and wherein the main reflector and the sub-reflector are: z m ( r , D ) = ∑ n = 0 4 ∑ m = 0 6 qm n , m D m - n + 1 r n , z s ( r , D ) = ∑ n = 0 4 ∑ m = 0 6 qs n , m D m - n + 1 r n , z, r are coordinates of the main reflector and the sub-reflector measured in millimeters, Index m corresponds to the main reflector, index s to the sub-reflector D is the main reflector diameter measured in millimeters.
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公开(公告)号：US20060267852A1
公开(公告)日：2006-11-30
申请号：US11287979
申请日：2005-11-28
申请人： Jiho Ahn , Sergey Bankov , Alexander Davydov
发明人： Jiho Ahn , Sergey Bankov , Alexander Davydov
IPC分类号： H01Q13/00
CPC分类号： H01Q19/193 , H01Q21/28
摘要： An antenna comprises: a main reflector being a body of revolution of parabolic shape; a sub-reflector being a body of the revolution of elliptic shape having a circle and a vertex oriented to the main reflector and being placed between the circle and the main reflector, one focal point of the sub-reflector being placed on the axis of revolution and the other focal point of the sub-reflector being placed out of the axis, the sub-reflector circle being placed in the plane of the main reflector edge circle; a radiator being placed along the axis of revolution of the main reflector and being placed between the main reflector and the sub-reflector; and wherein the sub-reflector has eccentricity ranging from 0.55 to 0.75
摘要翻译： 天线包括：主反射体，其为抛物线形旋转体; 子反射体是椭圆形的旋转体，其圆形和顶点定向到主反射器并且被放置在圆和主反射器之间，副反射器的一个焦点位于旋转轴上 并且副反射器的另一个焦点被放置在轴外，子反射器圆被放置在主反射器边缘圆的平面中; 散热器沿着主反射器的旋转轴线放置并放置在主反射器和副反射器之间; 并且其中所述副反射器的偏心范围为0.55至0.75
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公开(公告)号：US20040090388A1
公开(公告)日：2004-05-13
申请号：US10451588
申请日：2003-12-29
发明人： Ulrich E Mahr
IPC分类号： H01Q013/00
CPC分类号： H01Q19/08 , H01Q1/42 , H01Q19/134 , H01Q19/193
摘要： A cassegrain-type feed for a (parabolic) antenna is a dualband fed and employs a waveguide (40) feeding a dieletric cone (23) feeding a subreflector (24). The waveguide has an end-portion (49) adjacent the narrow end of the cone, the impedance of an inner wall (48) of which is modified by the inclusion of, in one embodiment, a dielectric sleeve (47) of thickness between/6 and/4 relative to propagation in the sleeve at a mean value of the upper of the two bands concerned. The sleeve helps to provide a rationally substantially symmetric illumination of the subreflector in said upper frequency band and, when used used with a parabolic main reflector, a similarly symmetric illumination of the main reflector also. The sleeve may be replaced by a series of grooves formed in the inner wall of the waveguide end-portion, these grooves being nominally/4 deep.
摘要翻译： 用于（抛物线）天线的卡塞格伦型馈电是馈送的双频带，并且采用馈送馈送子反射器（24）的小圆锥体（23）的波导（40）。 波导具有与锥体的窄端相邻的端部部分（49），其中内壁（48）的阻抗在一个实施例中包括厚度介于/ 6和/ 4相对于套筒中的传播在相关的两个带的上部的平均值。 套筒有助于提供在所述上部频带中的子反射器的合理基本上对称的照明，并且当与抛物面主反射器一起使用时，也可以使用主反射体的类似对称的照明。 套管可以由形成在波导端部的内壁中的一系列槽代替，这些凹槽名义上为/ 4深。
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公开(公告)号：US20030184486A1
公开(公告)日：2003-10-02
申请号：US10112670
申请日：2002-03-29
IPC分类号： H01Q013/00
CPC分类号： H01Q19/134 , H01Q19/193
摘要： A compact high efficiency waveguide feed for reflector antennas includes a dielectric loaded aperture at its end for radiating energy to the reflector. The feed comprises a circular waveguide that carries the dominant TE11 mode, and terminates in a dielectric rod with an end cap. The exposed length of the dielectric rod between the end cap and the waveguide end constitutes a cylindrical aperture that radiates towards the reflector. The end cap and dielectric aperture dimensions are optimized for reflector high efficiency. Its small diameter provides an extremely compact feed, which reduces the sidelobes and operates well with both deep and shallow reflectors. As a result, high efficiency and low sidelobe performance can be obtained with symmetric centre fed reflectors.
摘要翻译： 用于反射器天线的紧凑的高效率波导馈电包括在其端部处的用于向反射器辐射能量的介电负载孔。 馈电包括承载主导TE11模式的圆形波导，并且终止于具有端盖的介电棒。 端盖和波导端之间的介电棒的暴露长度构成朝向反射器辐射的圆柱形孔。 端盖和电介质孔径尺寸针对反射器的高效率进行了优化。 其小直径提供了非常紧凑的进料，这减少了旁瓣并且与深和浅反射器一起运行良好。 因此，对称中心馈电反射器可以获得高效率和低旁瓣性能。
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公开(公告)号：US5086303A
公开(公告)日：1992-02-04
申请号：US309410
申请日：1989-02-13
申请人： Ikuro Usui , Hirokazu Ohgi , Kazuhisa Ogawa
发明人： Ikuro Usui , Hirokazu Ohgi , Kazuhisa Ogawa
CPC分类号： H01Q1/002 , H01Q19/021 , H01Q19/193
摘要： A primary radiator is provided which can be used in an attenna to be mounted in an artificial satellite. In particular, the primary radiator is designed to prevent an electrical charge caused by charged particles in a space environment. In the conventional type of radiator, there typically has been no arrangement for preventing such electrical charge which may cause a short-circuited condition resulting in providing noise or communication difficulties. In order to prevent this electrical charging, a fine metallic conductor is passed from the central part of a sub-reflector through an axial central part where an influence for the electromagnetic field is minimal within the circular waveguide constituting the primary radiator. The conductor is then connected to ground in a DC form at a rectangular and circular converter of the primary radiator. With such a construction, since the metallic conductor is crossed at a right angle with an electric field of a dominant mode for transmitting within the waveguide, less disturbance of electromagnetic field is found, and further the metallic conductor may act to prevent the electrical charging.
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公开(公告)号：US4188632A
公开(公告)日：1980-02-12
申请号：US830139
申请日：1977-09-02
申请人： Dennis M. Knox
发明人： Dennis M. Knox
CPC分类号： H01Q19/193 , H01Q19/134
摘要： A rear feed assembly for a microwave aerial, comprising a dielectric support member having an energy reflecting surface positioned against one face thereof. Waveguide means is connected with the support, the center of the waveguide aperture being the phase center of the assembly and the said face of the support being located in the far field region with respect to that center. The support is so shaped that energy emitted from the waveguide means is reflected from the reflecting surface and emerges through a second face of the support with a spherical wavefront centered on the image phase center.
摘要翻译： 一种用于微波天线的后馈馈组件，包括电介质支撑构件，该电介质支撑构件具有抵靠其一个表面定位的能量反射表面。 波导装置与支撑件连接，波导孔的中心是组件的相位中心，并且支撑件的所述面相对于该中心位于远场区域。 支撑件被成形为使得从波导装置发射的能量从反射表面反射并且通过以图像相位中心为中心的球面波阵面而出现在支撑体的第二面上。
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公开(公告)号：US3430244A
公开(公告)日：1969-02-25
申请号：US3430244D
申请日：1964-11-25
申请人： RADIATION INC
发明人： BARTLETT HOMER E , MOSELEY ROLAND E
CPC分类号： H01Q19/193 , H01Q19/12
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公开(公告)号：US11888230B1
公开(公告)日：2024-01-30
申请号：US17825993
申请日：2022-05-26
发明人： Anders Jensen , Jinfay Yuan , Sean Holt , Samuel T. Reineman
CPC分类号： H01Q19/193 , H01Q13/02
摘要： In one embodiment, a parabolic antenna assembly includes a main reflector, a feed system in RF communication with the main reflector including a horn and a dielectric portion, and a sub-reflector in RF communication with the feed assembly, wherein the sub-reflector includes a body portion and a stem portion mechanically coupled to one another, wherein a reflecting surface of the sub-reflector is defined by at least a portion of the body portion and at least a portion of the stem portion, wherein the dielectric portion spaces the sub-reflector from the horn, and wherein the sub-reflector includes an axially-symmetric choke for providing virtual continuity at the reflecting surface.
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