摘要
运用时域电场积分方程 (TD EFIE)方法得出了在耦合条件下无载波单脉冲激励线天线阵列的瞬态电流分布 ,通过对阵列天线辐射近、远场的模拟 ,论证了阵列天线近场主波束形成及实施主波束扫描的可行性 ;并给出了在一定距离上实现近场主波束扫描时 ,天线阵各单元所需要的延时量。对于设计无载波单脉冲体制相控阵探地雷达系统具有意义。
Time domain electric field integral equation (TD-EFIE) method is employed to obtain the transient surface current distribution of linear antenna array excited by single pulse under coupling conditions. By simulating the near and far fields, the feasibility of near field main beam forming and beam-scan is confirmed. Also, the delay of every array element realizing near field beam-scan between a certain distance. This study can be of significance for the design of ground-penetrated radar, which is associated with non-carrier wave single pulse phased array mechanism.
出处
《电波科学学报》
EI
CSCD
2004年第1期62-66,共5页
Chinese Journal of Radio Science
基金
国家自然科学基金委员会与长江水利委员会联合资助项目 (5 0 0 996 2 0 0 1)资助
