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    • 2. 发明公开
    • Wideband phased array antennas and method
    • 天band te te。。。。。。。。。。
    • EP0959521A2
    • 1999-11-24
    • EP99109502.7
    • 1999-05-12
    • Hughes Electronics Corporation
    • Lee, Jar J.Stephens, Ronald R.Wang, Harry T.
    • H01Q3/22
    • H01Q3/22G01S13/426G01S2013/0245H01Q3/2676H01Q25/008
    • 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.
    • 参考歧管(64)将参考信号(Sr)分为“n”个参考信号采样,并且分频采样被延时参考差分时间延迟(τtrtr)。 扫描歧管(66)将扫描信号(Ss)分割为“n”个扫描信号并被延迟(τts)。 参考信号样本和扫描信号样本中的任何一个被混合器(92)混合,并且混合输出通过槽或喇叭天线传输。 在混频器和天线之间提供滤波器(88),以通过操作信号“So”。 - 独立声明可用于天线波束扫描方法。
    • 3. 发明公开
    • Wideband phased array antennas and method
    • 高相控阵天线和相关联的方法
    • EP0959521A3
    • 2000-12-20
    • EP99109502.7
    • 1999-05-12
    • Hughes Electronics Corporation
    • Lee, Jar J.Stephens, Ronald R.Wang, Harry T.
    • H01Q3/22
    • H01Q3/22G01S13/426G01S2013/0245H01Q3/2676H01Q25/008
    • 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.