| 随机相位误差对空间功率合成效率的影响 |
| |
| 引用本文： | 徐刚,徐勇,施美友,余川,廖勇,胡进光.随机相位误差对空间功率合成效率的影响[J].强激光与粒子束,2013,25(11):2914-2918. |
| |
| 作者姓名： | 徐刚 徐勇 施美友 余川 廖勇 胡进光 |
| |
| 作者单位： | 1.中国工程物理研究院 应用电子学研究所, 高功率微波技术重点实验室, 四川 绵阳 621 900; |
| |
| 摘 要： | 采用数理统计方法分析了任意分布的随机相位误差对多台不等功率辐射源组成的天线阵空间功率合成效率的影响，得到了由多台不等幅馈电的阵元组成的天线阵空间功率合成效率期望值的解析表达式。通过该解析式可利用快速傅里叶变换(FFT)快速分析任意数目阵元组成的天线阵在目标点的期望合成效率，为空间功率合成系统的总体合成效率预估并合理分解各分系统随机相位抖动指标提供了一种高效的解析分析方法。作为算例，用得到的解析公式分析相位误差分布呈均匀分布、正态分布和三角形分布三种典型情况对合成效率的影响。
|
| 关 键 词： | 相位误差 随机分布函数 功率合成 合成效率 |
| 收稿时间： | 2013-06-13 |
Impact of random phase error on microwave power combining efficiency |
| |
| Institution: | 1.Science and Technology on High Power Microwave Laboratory,Institute of Applied Electronics,CAEP,P.O.Box,919-1015,Mianyang 621900,China;2.Beijing Institute of Spacecraft System Engineering,China Academy of Space Technology,Beijing 100094,China |
| |
| Abstract: | With the mathematical statistics method, the impact of random phase error with arbitrary probability distribution on power combining efficiency of antenna array was analyzed. The analytic relationship between random phase error and expectation of combining efficiency of N-element antenna array was provided, which makes it easy to evaluate the impact of random phase error on array combining efficiency with fast-Fourier-transform (FFT) technology. As examples, the impact of random phase error with three typical distributions, uniform, Gaussian, and triangular distributions was discussed with the proposed analytical method. |
| |
| Keywords: | |
|
| 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 |
|
