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公开(公告)号：US4024543A
公开(公告)日：1977-05-17
申请号：US708177
申请日：1976-07-23
申请人： Vaclav Josef Vokurka
发明人： Vaclav Josef Vokurka
IPC分类号： H01Q19/18 , H01Q19/195 , H01Q19/20 , H01Q19/14
CPC分类号： H01Q19/195 , H01Q19/20
摘要： An antenna for "frequency-re-use" that is provided with more than two parabolic cylinder surfaces (as reflectors), having in pairs common line foci, which foci intersect or cross each other, and having in pairs common symmetry planes.
摘要翻译： 具有多于两个抛物面圆柱表面（作为反射器）的“频率再使用”天线，具有成对的公共线焦点，该焦点彼此相交或相交，并且具有成对的共同对称平面。
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公开(公告)号：US2870441A
公开(公告)日：1959-01-20
申请号：US31644852
申请日：1952-10-23
申请人： RAYTHEON MFG CO
发明人： PAUL HINES
IPC分类号： H01Q19/20
CPC分类号： H01Q19/20
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公开(公告)号：US4665405A
公开(公告)日：1987-05-12
申请号：US684462
申请日：1984-12-21
申请人： Serge Drabowitch , Claude Aubry , Daniel Casseau , Jean Bouko
发明人： Serge Drabowitch , Claude Aubry , Daniel Casseau , Jean Bouko
IPC分类号： H01Q19/20 , H01Q19/195
CPC分类号： H01Q19/20
摘要： An antenna having two crossed cylindro-parabolic reflectors in which the generatrices of said reflectors are orthogonal. The source is placed close to the center of the main reflector, which is further provided with polarization rotation means. The auxiliary reflector is placed facing the main reflector and it is such that it is transparent to a wave polarized linearly in one direction and reflecting to the waves polarized in an orthogonal direction.
摘要翻译： 具有两个交叉的圆柱形抛物线反射器的天线，其中所述反射器的母线是正交的。 源极靠近主反射器的中心放置，其还设置有偏振旋转装置。 辅助反射器被放置为面向主反射器，并且其对于在一个方向上线性偏振并且对正交方向偏振的波反射而言是透明的。
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公开(公告)号：US2690508A
公开(公告)日：1954-09-28
申请号：US72124347
申请日：1947-01-10
发明人： CUTLER CASSIUS C
CPC分类号： H01Q3/12 , H01Q13/0225 , H01Q19/12 , H01Q19/18 , H01Q19/20
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公开(公告)号：US4482898A
公开(公告)日：1984-11-13
申请号：US433986
申请日：1982-10-12
申请人： Corrado Dragone , Ralph A. Semplak
发明人： Corrado Dragone , Ralph A. Semplak
CPC分类号： H01Q19/191 , H01Q19/132 , H01Q19/20
摘要： The present invention relates to an antenna feed arrangement for correcting for astigmatism caused by an offset main reflector. The feed arrangement comprises at least one feed element, a first and a second cylindrical reflector disposed along the feed axis of the antenna with corresponding axes across the reflecting surfaces thereof oriented orthogonal to each other, and a pair of plates comprising a conductive material which are disposed parallel to, and on either side of, the feed axis of the antenna to enclose the area between the at least one feed element and the first reflector while forming an aperture thereof within a predetermined distance from the second reflector. The feed arrangement components are oriented with respect to each other and the aperture of the antenna to provide separate phase centers with a predetermined spacing therebetween on the feed axis for the two principal planes of curvature of a wavefront illuminating the antenna aperture to correct for astigmatism, which predetermined spacing can be selectively changed.
摘要翻译： 本发明涉及一种用于校正由偏移主反射器引起的象散的天线馈送装置。 馈送装置包括至少一个进给元件，沿着天线的进给轴布置的第一和第二圆柱形反射器，其对应的轴线跨越彼此正交的反射表面，以及一对板，其包括导电材料， 平行于所述天线的进给轴平行并且在其两侧布置，以包围所述至少一个进给元件和所述第一反射器之间的区域，同时在距所述第二反射器预定距离内形成孔。 馈电布置部件相对于彼此和天线的孔定向，以在馈送轴线上提供具有预定间隔的单独相位中心，用于照射天线孔径的波前的两个主曲率平面以校正散光， 可以选择性地改变预定间隔。
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公开(公告)号：US3938162A
公开(公告)日：1976-02-10
申请号：US500979
申请日：1974-08-27
申请人： Richard F. Schmidt
发明人： Richard F. Schmidt
CPC分类号： H01Q19/20 , H01Q25/002 , H01Q3/01
摘要： An antenna system for single or plural beams providing continuously variable beamwidth selectively in one or both of two orthogonal senses, i.e., azimuth and elevation, for either communications or angle-tracking. The system includes two parabolic cylindrical reflectors, which are respectively a main reflector and a sub-reflector; the reflectors are positioned with the focal axes thereof orthogonally. A point or multibeam (e.g., monopulse) feed is mounted adjacent the main reflector on the focal axis of the sub-reflector in the Airy disc of the system. Beamwidth is controlled using telescoping sections on the main and sub-reflectors to control the size of the surface areas thereof. Simultaneous operation of the telescoping sections of the reflector and sub-reflector provides bidirectional zooming of the beam without distortion while individual operation of the sections of the reflectors permits unidirectional zooming. Bidirectional zooming of beams from the multibeam feed requires rotating the position of the multibeam feed as the Airy disc changes during adjustment of the telescoping sections.
摘要翻译： 用于单个或多个光束的天线系统，用于在通信或角度跟踪中的两个正交感测（即方位角和仰角）中的一个或两个中选择性地提供连续可变的波束宽度。 该系统包括两个抛物柱面反射器，分别为主反射器和副反射器; 反射器的焦点轴线正交地定位。 一点或多波束（例如，单脉冲）馈送被安装在主反射器附近在系统的艾里盘中的副反射器的焦点轴上。 波束宽度由主和副反射器上的伸缩部分控制，以控制其表面积的大小。 反射器和副反射镜的伸缩部分的同时操作提供了光束的双向变焦而没有变形，同时反射器部分的单独操作允许单向变焦。 当在伸缩部分调整期间，随着艾里光盘的变化，来自多光束进给的光束的双向变焦需要旋转多光束进给的位置。
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公开(公告)号：US12113306B2
公开(公告)日：2024-10-08
申请号：US18073844
申请日：2022-12-02
申请人： Chongqing University
发明人： Mei Li , Lin Pu , Ming-Chun Tang , Lei Zhu
摘要： The present disclosure relates to a dual-band antenna array with fan beam and pencil beam. The antenna comprises a substrate and an antenna array arranged on the surface of the substrate, a first antenna element and a second antenna element are cascaded in an x-axis direction by a filter phase-shift line so as to form a subarray. A pair of T-shaped monopoles are symmetrically placed along the x axis at a certain distance above and below each of the first and second antenna elements, respectively, and a rectangular slot is embedded in the upper edge of the second antenna element to achieve good impedance matching. The second antenna element generates a fan beam at one frequency point or frequency band to have the performance of a wide beam, and generates a pencil beam at another frequency point or frequency band to have the performance of a narrow beam.
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公开(公告)号：US20230178897A1
公开(公告)日：2023-06-08
申请号：US18073844
申请日：2022-12-02
申请人： Chongqing University
发明人： Mei LI , Lin PU , Ming-Chun TANG , Lei ZHU
摘要： The present disclosure relates to a dual-band antenna array with fan beam and pencil beam. The antenna comprises a substrate and an antenna array arranged on the surface of the substrate, a first antenna element and a second antenna element are cascaded in an x-axis direction by a filter phase-shift line so as to form a subarray. A pair of T-shaped monopoles are symmetrically placed along the x axis at a certain distance above and below each of the first and second antenna elements, respectively, and a rectangular slot is embedded in the upper edge of the second antenna element to achieve good impedance matching. The second antenna element generates a fan beam at one frequency point or frequency band to have the performance of a wide beam, and generates a pencil beam at another frequency point or frequency band to have the performance of a narrow beam.
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公开(公告)号：US20180145400A1
公开(公告)日：2018-05-24
申请号：US15569729
申请日：2016-04-27
申请人： Kathrein-Werke KG
发明人： Roland GABRIEL , Andreas VOLLMER
CPC分类号： H01Q1/246 , H01Q9/0485 , H01Q19/20 , H01Q21/24 , H01Q21/245
摘要： An antenna for a mobile telecommunication base station has a plurality of radiating elements and at least two transmission paths or at least two receiving paths, which have different polarizations and are linked with two of the radiating elements and physically distanced from each other. The radiating elements are dielectric radiating elements. The individual radiating element interval between the radiating elements is less than 0.6λ, wherein λ is the wavelength of the center frequency of the lowest resonance frequency range of the radiating elements.
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