脉冲激励的长方形发射天线的分析与波形优化  

Analysis and waveform optimization of rectangular antenna excited by non-sinusoidal pulse

作　　者：黄勇富[1] 毕光国[1] 樊祥宁[1] 

机构地区：[1]东南大学移动通信国家重点实验室,江苏南京210096

出　　处：《电波科学学报》2003年第6期615-619,共5页Chinese Journal of Radio Science

基　　金：国家高科技发展计划研究项目 (2 0 0 1AA12 30 4 2 )

摘　　要：在脉冲激励天线中 ,脉冲波形对于辐射功率有着重要的影响。对长方形行波天线的激励电流脉冲波形与其辐射功率的关系进行了分析。提出了激励电流的优化问题 ,使得天线在给定方向上的辐射能量最大化。并且给出了优化问题的解法和几种参数下的优化波形。通过具体的数值计算 ,与其他参考文献中使用的波形相比 。The pulse waveforms have important effect on the radiation power in pulse-excited antennas. In this paper we analyzed the relation between excitation and the radiated power of rectangular traveling-wave antenna, and then presented the optimization problem of the excitation waveform to maximize the radiated power at given direction. The solution method and several optimized waveforms are given. In numerical examples we showed that in compare with some other waveforms, these optimized waveforms can radiate more power at main radiation direction.

关 键 词：脉冲激励 长方形发射天线 非正弦波 波形优化 激励电流 

分 类 号：TN820[电子电信—信息与通信工程]