细线天线的瞬态响应特性的研究  

The Research of TransientCharacteristics of Thin Wire Antennas

作　　者：于哲峰[1] 周乐柱[1] 班永灵[1] 王湃[1] 

机构地区：[1]北京大学信息科学技术学院,北京100871

出　　处：《北京大学学报（自然科学版）》2004年第3期341-345,共5页Acta Scientiarum Naturalium Universitatis Pekinensis

摘　　要：利用FDTD(时域有限差分方法 )对多根细线天线的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对入射波为电磁脉冲时细线天线中心电流响应特性的影响。指出了MIMO(多输入多输出 )技术在超宽带领域应用时 。FDTD (Finite Difference Time Domain) method was used to numerically simulate the transient radiating and scattering characteristics of 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 MIMO (Multiple Input Multiple Output) system is applied to the field of UWB (ultra wideband).

关 键 词：时域有限差分 细线天线 电磁脉冲 多输入多输出 超宽带 

分 类 号：TN820[电子电信—信息与通信工程]