摘要
直接从时域为两平行线天线受电磁脉冲激励的瞬态过程建模,建立了自由空间中、大地视为理想导体和有损媒质时两天线耦合的仅由矢量磁位表达的时域积分方程组,并用时域矩量法(MOM)结合时间步进算法(MOT)快速求解。针对实例的计算结果与文献结果吻合,从中可分析天线间距和离地高度变化时媒质对线上电流的影响规律。在三米法电波暗室的实验进一步验证了算法的有效性。
The transient process of two parallel wire antennas excited by electromagnetic pulse is modeled directly in the time domain. Time domain integral equations for two coupled wire antennas in free space, above perfect conducting ground or lossy medium are presented, which are expressed only by vector potential. The equations are solved efficiently by MOM combined with MOT. The simulation resuits are good agreement with data from references, and the affects of the space between two wires or the distance from the wires to the ground on the current of wires could be analyzed. The measured data carried out in the compact anechoic chamber by three-meter method show the validation of the algorithm.
出处
《电波科学学报》
EI
CSCD
北大核心
2008年第3期411-416,共6页
Chinese Journal of Radio Science
基金
国家自然科学基金项目(50577019)
河北省自然基金项目(E2005000561)
