超宽带电磁脉冲天线阵互耦效应研究  

Research on Mutual Coupling of Ultra-Wideband Pulse Antenna Array

作　　者：王磊 祝转民 董开封 蒋延生[2] 

机构地区：[1]63999部队,北京100094 [2]西安交通大学,西安710049

出　　处：《飞行器测控学报》2011年第4期35-38,共4页Journal of Spacecraft TT&C Technology

基　　金：国家自然科学基金资助项目(编号:60501004)

摘　　要：将超宽带电磁脉冲天线组阵后可提高主射方向的峰值功率及增益。但由于非线性阵元因素,必须考虑阵元间互耦效应。以恒阻抗TEM喇叭天线为阵元,通过仿真和实验研究了超宽带天线阵的互耦效应,研究表明,耦合强弱与阵元间距及频段有关,互耦增强了超宽带天线阵的低频辐射能力,使远场主射方向脉冲峰峰值有所增加。上述结论对于超宽带电磁脉冲天线阵的应用具有参考价值。Ultra-Wideband（UWB） impulse radiation antenna arrays are widely used for its flexible radiation pattern and high gain.However,inter-element mutual coupling should be studied carefully because the arrays involve non-linear elements.Simulation and experiments taking constant impedance TEM horn as an array element show that mutual coupling is closely related to inter-element distance and frequency band.Mutual coupling increases radiation power in low frequency band and boosts the magnitude of pulses in the principal direction of the antenna array.

关 键 词：超宽带电磁脉冲 TEM喇叭 耦合 远场辐射 

分 类 号：TN811[电子电信—信息与通信工程]