基于光子晶体光纤的宽带相控阵雷达多波束形成技术

摘要

This paper puts forward the optical multi-beam forming network based on photonic crystal fiber(PCF),utilizes the high dispersion value and dispersion flat characteristic of PCFs to realize the optical true time delay(TTD),and adopts light wave division multiplexing technology to form independent control and scanning of several radio-frequency(RF) beams.Simulation results show that the relative time delay of RF signal can be effectively realized by changing the operating wavelength,and the time-delay difference is consistent with the calculated theoretic value.%提出了基于光子晶体光纤（PCF）的光学多波束形成网络,利用光子晶体光纤的高色散值和色散平坦特性实现了光学真延时（TTD）,并采用光波分复用技术形成了多个射频波束的独立控制和扫描。仿真结果表明,通过改变工作波长能够有效实现射频信号的相对延时,且延时差与理论计算值相符。