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    • 4. 发明申请
    • PHASED ARRAY RADAR SYSTEMS AND SUBASSEMBLIES THEREOF
    • 相位阵列雷达系统及其分类
    • WO2007064451A1
    • 2007-06-07
    • PCT/US2006/043485
    • 2006-11-08
    • RAYTHEON COMPANYADLERSTEIN, Michael, G.KAPER, Valery, S.
    • ADLERSTEIN, Michael, G.KAPER, Valery, S.
    • H03L7/24H01Q3/42G01S7/03
    • H03L7/24G01S7/032G01S2013/0254H01Q3/30H01Q3/42
    • A phase shifter (92, 17a..., 16n) includes a coupler (34)having a pair of output terminals for providing a pair of signals having a frequency f and having a relative phase shift difference of mp/2 radians, where m is an integer, and a switch (36) is included having a pair of inputs, each one of the pair of inputs being coupled to a corresponding one of output terminals of the coupler (34) . The switch (36) has an output, one of the inputs of the switch being coupled to the output of the switch selectively in accordance with a first control signal (39) fed to the switch. An oscillator (38) is included having a tunable resonant circuit (41) coupled to the output of the switch (36) , the frequency of the resonant circuit (41) being detuned from the nominal resonant frequency to shift the nominal resonant frequency relative to the harmonic of the signal at the output of the switch.
    • 移相器(92,17a ...,16n)包括具有一对输出端子的耦合器(34),用于提供具有频率f并具有mp / 2弧度的相对相位差的一对信号,其中m 是整数,并且包括具有一对输入的开关(36),所述一对输入中的每一个耦合到耦合器(34)的对应的一个输出端子。 开关(36)具有输出,开关的一个输入根据馈送到开关的第一控制信号(39)选择性地耦合到开关的输出端。 包括具有耦合到开关(36)的输出的可调谐谐振电路(41)的振荡器(38),谐振电路(41)的频率与标称谐振频率失谐,以使标称谐振频率相对于 交换机输出端的信号谐波。