| 具有坡度的同轴布喇格结构的频率响应特性 |
| |
| 引用本文： | 丁学用,张世昌,谢永超.具有坡度的同轴布喇格结构的频率响应特性[J].强激光与粒子束,2008,20(12). |
| |
| 作者姓名： | 丁学用 张世昌 谢永超 |
| |
| 作者单位： | 西南交通大学 光电子学研究所， 成都 610031 |
| |
| 摘 要： | 在CST软件平台上，对具有坡度的同轴布喇格结构的频率响应特性进行了数值模拟。结果表明：具有正圆锥形坡度的同轴布喇格结构，其带宽随着所加坡度角的增大而变窄；而具有倒圆锥形坡度的同轴布喇格结构，其带宽随着所加坡度角的增大而变宽。采用窗函数技术可以有效地抑制具有坡度的同轴布喇格结构的频率响应曲线的残余旁瓣。汉明窗函数、汉宁窗函数及布拉克曼窗函数均有利于改善同轴布喇格结构作为反射器或者滤波器的性能。
|
| 关 键 词： | 高功率微波 同轴布喇格结构 坡度正弦波纹壁 残余旁瓣 窗函数 |
| 收稿时间： | 1900-01-01; |
Characteristics of frequency response in a coaxial Bragg structure with tapered ripples |
| |
| DING Xue-yong,ZHANG Shi-chang,XIE Yong-chao.Characteristics of frequency response in a coaxial Bragg structure with tapered ripples[J].High Power Laser and Particle Beams,2008,20(12). |
| |
| Authors: | DING Xue-yong ZHANG Shi-chang XIE Yong-chao |
| |
| Institution: | Institute of Photoelectronics, Southwest Jiaotong University, Chengdu 610031, China |
| |
| Abstract: | Based on the CST software,numerical simulations are carried out for the frequency response in a coaxial Bragg structure with tapered ripples.The bandwidth of the coaxial Bragg structure with positive taper can be narrowed by increasing the tapering angle,whereas the bandwidth of the coaxial Bragg structure with negative taper can be expanded by increasing the tapering angle.The residual side-lobes of the frequency response can be effectively suppressed by employing the window function technique,using Hanning,Hamming and Blackman window functions.These characteristics of a tapered coaxial Bragg structure are favorable to improvement of its performance as a reflector or a filter. |
| |
| Keywords: | high power microwave coaxial Bragg-structure tapered sinusoidal ripples residual side-lobes windowing function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
| 点击此处可从《强激光与粒子束》下载免费的PDF全文 |
