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121. 发明公开

EP1085342A1 A spread spectrum system using phased array principles to combat multipath 失效
标题翻译： Spreizspektrumsystem mit phasengesteuerten Antennenprinzipien zurUnterdrückungvon Mehrwegsignalen
公开(公告)号：EP1085342A1
公开(公告)日：2001-03-21
申请号：EP00123437.6
申请日：1995-06-16
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： Schilling, Donald L.
IPC分类号： G01S3/42 , H01Q3/26
CPC分类号： H04B7/0894 , G01S3/42 , H01Q3/22 , H01Q3/26 , H01Q3/2605 , H01Q3/2682 , H04B1/1081 , H04B1/69 , H04B1/707 , H04B7/084 , H04L1/06
摘要： A phased array spread spectrum system for maximizing signal strength of a spread-spectrum signal with multipath through the use of a first RF/IF section 21, a second RF/IF section 22, a first digital delay device 27, a second digital delay device 28, a first summer 29, a second summer 30, a despreader 31, a magnitude device 32, a shift register 33, and a comparator 34. The first RF/IF section 21 receives a plurality of spread-spectrum signals and the second RF/IF section 22 receives a plurality of phased versions of the plurality of spread-spectrum signals. The first and second digital delay devices 27, 28 delay the received plurality of spread-spectrum signals with respect to the plurality of phased versions of the plurality of spread-spectrum signals by a plurality of delays. The first and second summers 29, 30 combine the delayed spread-spectrum signals and the plurality of phased versions of the plurality of spread-spectrum signals as a plurality of combined signals. The despreader 31 despreads the plurality of combined signals as a plurality of despread signals. The magnitude device 32 generates a plurality of magnitude values from the plurality of despread signals. The shift register 33 stores a plurality of previous-magnitude values previously generated by the magnitude device 32 and a plurality of present magnitude values presently generated by the magnitude device 32. The comparator 34 compares the previous-magnitude values and the present-magnitude values and, responsive to the comparison, outputs a plurality of comparison signals. The first and second digital delay devices 27, 28 respond to the plurality of comparison signals by lengthening or shortening the plurality of delays.
摘要翻译：一种相控阵扩频系统，用于通过使用第一RF / IF部分21，第二RF / IF部分22，第一数字延迟装置27，第二数字延迟装置，使多径的扩频信号的信号强度最大化 28，第一加法器29，第二加法器30，解扩器31，幅度装置32，移位寄存器33和比较器34.第一RF / IF部21接收多个扩频信号，第二RF / IF部分22接收多个扩频信号的多个相位版本。第一和第二数字延迟装置27,28通过多个延迟将接收到的多个扩频信号相对于多个扩频信号的多个相位版本延迟。第一和第二夏季29,30将延迟扩频信号和多个扩频信号的多个相位版本组合为多个组合信号。解扩器31将多个组合信号解扩展为多个解扩信号。幅度装置32从多个去扩展信号产生多个幅度值。移位寄存器33存储由幅度装置32先前产生的多个先前幅度值和由幅度装置32目前产生的多个当前幅度值。比较器34比较先前幅度值和当前幅度值，以及响应于比较，输出多个比较信号。第一和第二数字延迟装置27,28通过延长或缩短多个延迟来响应多个比较信号。

122. 发明公开

EP0959521A3 Wideband phased array antennas and method 有权
标题翻译：高相控阵天线和相关联的方法
公开(公告)号：EP0959521A3
公开(公告)日：2000-12-20
申请号：EP99109502.7
申请日：1999-05-12
申请人： Hughes Electronics Corporation
发明人： Lee, Jar J. , Stephens, Ronald R. , Wang, Harry T.
IPC分类号： H01Q3/22
CPC分类号： H01Q3/22 , G01S13/426 , G01S2013/0245 , H01Q3/2676 , H01Q25/008
摘要： Wideband phased array antennas (60;320;360) are provided that eliminate the need for phase shifters in the region of the array face. In addition, they generate less beam squint than conventional antennas. In one embodiment, they include an electronic signal generator (62), reference and scanning manifolds (64,66) and an array of n radiative modules (70). The signal generator (62) generates a variable-frequency scanning signal (s s ) and a reference signal (s r ) wherein the frequency of the reference signal (s r ) is substantially a selected one of the sum and the difference of the frequencies of the scanning signal (s s ) and an operating signal (s o ). The reference manifold (64) receives and divides the reference signal (s r ) into n reference signal samples which are progressively time delayed by a selectable one of m reference differential time delays (Δt r ). The scanning manifold (66) receives and divides the scanning signal (s s ) into n scanning signal samples which are progressively time delayed by a scanning differential time delay (Δt s ). Each of the radiative modules (70) includes a mixing device (92), an electromagnetic radiator (90) and a filter (94). The mixing device (92) receives and mixes a respective one of the reference signal samples and a respective one of the scanning signal samples.

123. 发明授权

EP0466126B1 Method and apparatus for producing multiple, frequency-addressable scanning beams 失效
标题翻译：用于产生多个频率可寻址扫描光束的方法和设备
公开(公告)号：EP0466126B1
公开(公告)日：1996-08-28
申请号：EP91111454.4
申请日：1991-07-10
申请人： Hughes Aircraft Company
发明人： Renshaw, Kenneth H.
IPC分类号： H01Q25/00 , H01Q3/22 , H01Q3/26
CPC分类号： H01Q3/22 , H01Q3/2694 , H01Q25/007 , H04B7/2041

124. 发明授权

EP0506838B1 BROADBAND CIRCULAR PHASED ARRAY ANTENNA 失效
标题翻译：宽频带圆相控阵天线。
公开(公告)号：EP0506838B1
公开(公告)日：1994-05-04
申请号：EP91902295.4
申请日：1990-12-12
申请人： AlliedSignal Inc.
发明人： SINSKI, Allen, Isaac , ACORACI, Joseph, Henry , WISCHHUSEN, Carl, Brian
IPC分类号： H01Q3/36 , H01Q3/24 , H01Q3/22
CPC分类号： H01Q3/2694 , H01Q3/22 , H01Q3/242
摘要： An apparatus and method for generating a directional beam for radiating or receiving electromagnetic signals having a constant beamwidth over a predetermined frequency range has been described incorporating a circular array antenna, a Butler matrix, a plurality of phase shifters, a plurality of transmission line lengths, and a power divider. The invention overcomes the problem of constant beamwidth over a predetermined frequency range such as one and one half octaves.

125. 发明授权

EP0294413B1 STEERABLE BEAM ANTENNA SYSTEM USING BUTLER MATRIX 失效
标题翻译：可控辐射源LEG巴特勒矩阵中的天线系统。
公开(公告)号：EP0294413B1
公开(公告)日：1993-11-10
申请号：EP88900057.6
申请日：1987-11-23
申请人： Hughes Aircraft Company
发明人： RENSHAW, Kenneth, H. , MURPHY, Timothy, A.
IPC分类号： H01Q3/22 , H01Q3/40 , H01Q25/00 , H04B7/185
CPC分类号： H04B7/2041 , H01Q3/22 , H01Q3/40 , H01Q25/00
摘要： A steerable beam antenna system for use in satellite communication systems and including a main reflector and an antenna array having a plurality of feed elements. The antenna array is positionable at or near at least one focal point of the main reflector, and its feed elements can receive microwaves from or transmit microwaves toward the main reflector. A Butler matrix (110) having multiple input ports (158) and multiple outputs (156) is connected to the array of feed elements and substantially performs a spatial Fourier transformation on a generated set of signals to be transmitted which have a predetermined phase relationship between the signals, which is necessary to create the steerable beam. The Butler matrix also can perfom an inverse spatial transformation on a set of incoming signals focused on the array by the reflector and received by the feed elements. By using a Buttler matrix, the antenna system of the present invention is able to communicate with multiple ground stations simultaneously and with high gain using many virtual spot beams, each oriented to a distinct location on the earth that is dependent on the relative frequency of the beam.

126. 发明授权

EP0238621B1 STEERED-BEAM SATELLITE COMMUNICATION SYSTEM 失效
标题翻译：转向卫星通信系统
公开(公告)号：EP0238621B1
公开(公告)日：1991-04-24
申请号：EP86906068.1
申请日：1986-09-15
申请人： Hughes Aircraft Company
发明人： ROSEN, Harold, A.
IPC分类号： H01Q3/22 , H04B7/185
CPC分类号： H01Q3/22 , H04B7/2041
摘要： A satellite communication system employing a satellite in a geostationary orbit about the earth for communicating with ground stations disposed along a region of the earth positioned along an arc of a great circle of the earth. The satellite carries a frequency-scanning antenna array oriented for scanning a beam of electromagnetic radiation in one plane aligned with the arc of the great circle. Each position of the beam is formed with a different frequency of the radiation. The operating frequency of each ground station is selected to match the frequency of a beam directed from the satellite to the ground station. An antenna assembly formed of two confocal parabolic reflectors provides for a multiplication of the effective aperture of an array of radiating elements of the antenna, and also for a demagnification of a scan angle of radiation emanating from the array of radiating elements.

127. 发明公开

EP0361417A3 Microstrip antenna system with multiple frequency elements 失效
标题翻译：具有多个频率元素的MICROSTRIP天线系统
公开(公告)号：EP0361417A3
公开(公告)日：1990-12-19
申请号：EP89117806.3
申请日：1989-09-27
申请人： Hughes Aircraft Company
发明人： Shapiro, Sanford S. , Pederson, Clinton W.
IPC分类号： H01Q3/22 , H01Q25/00 , H01Q21/06
CPC分类号： H01Q3/22 , H01Q19/005 , H01Q21/065 , H01Q25/007
摘要： An antenna system (20) includes an array (22) of micro-strip antenna elements (24) wherein each of the elements (24) includes two or more radiators (50). Electromagnetic signals are coupled from an input terminal (32) of each element (24) via one or more circulators (52) which allow for application of an input signal to a first of the radiators (50) followed by rerouting of respective signals to the next radiator (50). The radiators (50) are tuned to radiate at successively higher portions of the electromagnetic spectrum. By virtue of reflections of higher frequency radiation from a radiator (50) tuned to a lower portion of the signal spectrum, each radiator (50) radiates only said portion of the signal spectrum falling within the bandwidth of the radiator (50). By using three radiators (50), each antenna element (24) is capable of radiating a signal spectrum three times as wide as are the bandwidths of a single radiator (50). Included within the antenna system (20) is one or more power dividers (36) to form one or more beams of radiation. With the use of plural power dividers, switching circuitry may be employed to select sequentially individual ones of the power dividers so as to scan a beam of radiation.

128. 发明公开

EP0311928A2 Gruppenantenne 失效
标题翻译： Gruppenantenne。
公开(公告)号：EP0311928A2
公开(公告)日：1989-04-19
申请号：EP88116646.6
申请日：1988-10-07
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Brunner, Anton, Dipl.-Ing. , Jatsch, Werner, Dipl.-Ing. , Kress, Erwin, Dipl.-Ing.
IPC分类号： H01Q3/22
CPC分类号： H01Q21/005 , H01Q3/22 , H01Q25/02
摘要： Bei der aus mehreren parallel zueinander verlaufenden Hohlleiter-Schlitzstrahlerantennenreihen (1) bestehenden ebenen Gruppenantenne erfolgt eine Strahlschwenkung in einer Ebene durch elektronisch einstellbare, jeder Reihe speiseseitig vorgeschaltete Hochfrequenz-Phasenschieber (3) und um einen kleineren Winkelbetrag in einer senkrecht dazu liegenden Ebene durch eine Frequenzänderung des Trägers des allen Reihen über die Phasenschieber (3) zugeführten Hochfrequenz-Speisesignals. Eine gemäß der Erfindung ausgebildete Gruppenantenne läßt sich bei der Radarortung und für Trilaterationszwecke einsetzen.
摘要翻译：在由多个彼此平行延伸的波导狭缝发射器天线行（1）组成的扁平组天线中，通过电子可调式射频移相器（3）在一个平面中进行光束偏转，其中每个连接在每行前面的供电侧，并且通过相对于所有行馈送到所有行的射频供给信号的载波的频率变化，通过在与其成直角的平面中的较小角度幅度连接，移位器（3）。根据本发明设计的组天线可以用于雷达位置位置和三边测量目的。

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