多根细线天线对超宽带信号的瞬态响应特性  

Transient characteristics of thin wire antennas to the ultra-wide band signal

作　　者：于哲峰[1] 周乐柱[1] 王湃[1] 班永灵[1] 

机构地区：[1]北京大学信息科学技术学院,北京100871

出　　处：《通信学报》2004年第5期148-154,共7页Journal on Communications

摘　　要：利用FDTD(时域有限差分)方法对多根未加载的细线天线以及加载的细线天线瞬态响应特性进行了数值模拟。分析了其他细线天线的存在对馈源为电磁脉冲的细线天线辐射特性的影响以及入射波为电磁脉冲时细线天线中心的电流响应特性的影响。指出了在确定天线是否相关时,天线之间的距离所应当满足的条件。FDTD method was used to numerically simulate the transient radiating and scattering characteristics of thin wire antennas and linearly loaded thin wire antennas. The effects of other antennas on the radiation characteristics of thin wire antenna are analyzed when the antenna is fed by an electromagnetic pulse. The scattering characteristics of thin wire antennas are also analyzed when they are illuminated by an electromagnetic pulse. The required distances between different antennas are given when to determine whether the antennas are correlative.

关 键 词：FDTD 细线天线 电磁脉冲 超宽带 

分 类 号：TN015[电子电信—物理电子学]