基于耦合振荡器阵列的非线性有源天线阵

Nonlinear Active Antenna Array Based on Coupled Oscillators

利用耦合振荡器阵列实现有源集成天线阵电扫描,可以实现相控阵天线高效率、低成本、小型化。文中利用Y-参数对利用任意耦合网络实现的耦合振荡器阵列进行了分析,得到了系统幅度及相位非线性动力系统的微分方程组,然后针对利用耦合振荡器阵列实现非线性有源天线阵列这一实际应用,提出了一种不用移相器实现有源天线阵列波束扫描的方法,并进行了稳定性分析。最后利用计算机仿真验证了该方法的可行性。

Phased array can be made high efficiency, low cost, smaller, if active integrated antenna array＇s beam-scanning are realized by coupled oscillators. The article analyses an oscillator array with an arbitrary coupling network by Y-parameters, a set of differential equations for the oscillator amplitude and phase dynamics is proposed, then a novel phase-shiftless beam scanning method for active integrated antenna array is put forward according to the application, and the stability of the method is studied. The usefulness are illustrated through computer simulations.