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公开(公告)号：EP1195017A2
公开(公告)日：2002-04-10
申请号：EP00957243.9
申请日：2000-05-05
申请人： Raytheon Company
发明人： TOPLICAR, James, R. , ANDREWS, Guillermo, V. , FRAZIER, Gary, A. , AGARWAL, Krishna, K. , DOUCETTE, Paul, E.
IPC分类号： H04B7/00
CPC分类号： H01Q3/38 , H01Q3/26 , H01Q21/061 , H04B7/086
摘要： A digital phased array antenna comprises a plurality of antenna elements, each element receiving an incoming signal. An analog-to-digital converter is coupled to at least one of the antenna elements to convert the incoming signal to a multi-bit digital signal. A demodulator or de-ramp circuit is coupled to the analog-to-digital converter to reduce the bandwidth of the multi-bit signal.
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公开(公告)号：EP1195017B1
公开(公告)日：2017-03-01
申请号：EP00957243.9
申请日：2000-05-05
申请人： RAYTHEON COMPANY
发明人： TOPLICAR, James, R. , ANDREWS, Guillermo, V. , FRAZIER, Gary, A. , AGARWAL, Krishna, K. , DOUCETTE, Paul, E.
CPC分类号： H01Q3/38 , H01Q3/26 , H01Q21/061 , H04B7/086
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3.发明公开
公开(公告)号：EP1456904A1
公开(公告)日：2004-09-15
申请号：EP02797429.4
申请日：2002-12-19
申请人： Raytheon Company
CPC分类号： H01Q21/0025 , H01Q3/26 , H01Q3/2682
摘要： An antenna system (10), includes a plurality of antenna elements (21-25). Respective analog signals corresponding to respective antenna elements are subjected to respective phase shifts, are digitized and using one-bit samples, are then subjected to an equal and opposite phase shift, and are subsequently combined so that the fundamental components add coherently and the harmonic components add noncoherently. a digital-to-analog converter is supplied with successive samples, and produces in response to each sample a pulse having a duration which is less than the time period between successive samples.
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4.发明授权
公开(公告)号：EP1456904B8
公开(公告)日：2009-04-22
申请号：EP02797429.4
申请日：2002-12-19
申请人： Raytheon Company
CPC分类号： H01Q21/0025 , H01Q3/26 , H01Q3/2682
摘要： An antenna system (10), includes a plurality of antenna elements (21-25). Respective analog signals corresponding to respective antenna elements are subjected to respective phase shifts, are digitized and using one-bit samples, are then subjected to an equal and opposite phase shift, and are subsequently combined so that the fundamental components add coherently and the harmonic components add noncoherently. a digital-to-analog converter is supplied with successive samples, and produces in response to each sample a pulse having a duration which is less than the time period between successive samples.
摘要翻译： 天线系统（10）包括多个天线元件（21-25）。 对应于各个天线元件的各个模拟信号经历相应的相移，被数字化并且使用一个比特的采样，然后经受相等并且相反的相移，并且随后被组合，使得基本分量相干地加入，并且谐波分量 不相容地添加。 数模转换器被提供有连续采样，并且响应于每个采样产生持续时间小于连续采样之间的时间段的脉冲。
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5.发明授权
公开(公告)号：EP1456904B1
公开(公告)日：2009-02-18
申请号：EP02797429.4
申请日：2002-12-19
申请人： RAYTHEON COMPANY
CPC分类号： H01Q21/0025 , H01Q3/26 , H01Q3/2682
摘要： An antenna system (10), includes a plurality of antenna elements (21-25). Respective analog signals corresponding to respective antenna elements are subjected to respective phase shifts, are digitized and using one-bit samples, are then subjected to an equal and opposite phase shift, and are subsequently combined so that the fundamental components add coherently and the harmonic components add noncoherently. a digital-to-analog converter is supplied with successive samples, and produces in response to each sample a pulse having a duration which is less than the time period between successive samples.
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