强激光与粒子束, 2009, 21 (4): 595, 网络出版: 2009-11-24   

介质加载天线阵的瞬态辐射特性

Transient radiation characteristic of dielectric loaded antenna array
作者单位
信息综合控制国家重点实验室,成都 610036
摘要
提高天线增益和辐射效率是瞬态天线研究的重要内容之一。通过设定高斯脉冲激励波形,导出了瞬态辐射的能量阵列因子,分析了1维对称均匀天线阵列的瞬态辐射特性。结果表明:阵列的辐射波形与观察时间区间和角度有关,瞬态与稳态特性差异明显,时域辐射方向图与脉冲宽度有关,阵列可实现时域波束扫描。设计了介质加载天线阵,并采用3维电磁场分析软件进行了时域仿真计算,分析了介质加载对天线辐射特性的影响。研究表明:有介质加载的天线前向辐射电场峰值比没有介质加载的天线增加逾1倍,即瞬态辐射功率增大了3倍多,通过对计算和仿真结果的分析比较,验证了分析和设计方法的正确性和有效性。
Abstract
Increasing gain and radiant efficiency is one of the most important aims of the research on trantrent antenna. The energy array factor of transient radiation was deduced by setting the Gaussian pulse feeding waveform. The transient radiation characteristic of one dimension,symmetrical,and uniform array was analyzed. The radiated waveform of array is correlated with observational time and angle,transient characteristic is quite different from that of transient-free,time domain pattern is correlated with pulse width,and time domain array is scannable. The dielectric loaded antenna array were designed and simulated by using 3D time domain electromagnetic simulation software. The front peak electric field of antenna with dielectric is two times of antenna without dielectric,and the effective radiated power(ERP) is four times. The correctness and validity of this analysis and design is proved by comparing the results of calculation and simulation.

陈宏, 肖开奇, 许建军. 介质加载天线阵的瞬态辐射特性[J]. 强激光与粒子束, 2009, 21(4): 595. Chen Hong, Xiao Kaiqi, Xu Jianjun. Transient radiation characteristic of dielectric loaded antenna array[J]. High Power Laser and Particle Beams, 2009, 21(4): 595.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!