电子学报 ›› 2015, Vol. 43 ›› Issue (3): 620-624.DOI: 10.3969/j.issn.0372-2112.2015.03.032

• 科研通信 • 上一篇    

基于稳定的时域积分方程方法对多天线辐射问题和互耦问题的研究

胡金花1,2, 陈明生1,2, 孔勐1,2, 沈晶2, 吴先良1,2   

  1. 1. 安徽大学计算智能与信号处理教育部重点实验室, 安徽合肥 230039;
    2. 合肥师范学院电子信息工程学院, 安徽合肥 230601
  • 收稿日期:2013-08-28 修回日期:2014-07-26 出版日期:2015-03-25 发布日期:2015-03-25
  • 作者简介:胡金花 女,1984年10月出生于安徽芜湖.2006年于安徽大学获得学士学位.现于安徽大学攻读博士学位,主要研究方向为电磁场数值计算、电波传播以及电磁兼容等方面的研究与应用. E-mail:ahdxhjh305505@163.com
  • 基金资助:

    国家自然科学基金重点项目(No.60931002);国家自然科学基金项目(No.51477039);教育部科学技术重点项目(No.212081);国家自然科学基金青年科学基金项目(No.61301062);安徽高校省级优青年人才基金项目(No.2012SQRL162ZD);安徽省学术带头人项目

Investigation on the Radiation and Mutual Coupling Problems of Multi Antennas Based on a Stable Time Domain Integral Equation Method

HU Jin-hua1,2, CHEN Ming-sheng1,2, KONG Meng1,2, SHEN Jing2, WU Xian-liang1,2   

  1. 1. Key Lab of Ministry of Education of Intelligent Computing & Signal Processing, Anhui University, Hefei, Anhui 230039, China;
    2. School of Electronics and Information Engineering, Hefei Normal University, Hefei, Anhui 230601, China
  • Received:2013-08-28 Revised:2014-07-26 Online:2015-03-25 Published:2015-03-25

摘要:

为有效地改善时间步进算法(MOT)的后时稳定性,引入类椭球波函数(APSWF)做为该算法的瞬态基函数.然而,基于此类瞬态基函数推导得到的系统具有非因果特性,因而必须使用外推方法以恢复时间步进算法的时间步进特性.采用所提出的方法对多天线结构进行数值仿真,获得其瞬态电流响应、回波损耗、耦合系数以及方向图等重要参数,实现了对天线辐射问题和互耦问题的分析与研究,同时也验证了本文所提出方法的有效性和精确性.

关键词: 时间步进算法(MOT), 类椭球波函数(APSWF), 多天线

Abstract:

In order to improve the late-time stability of the marching-on-in time (MOT) method, the approximate prolate spheroidal wave functions (APSWFs) are proposed and used as the temporal basis functions.Unfortunately, the system derived from these temporal basis functions is noncausal.To overcome this problem, the extrapolation scheme should be included to recover the possibility of time marching.Then, in the numerical simulations of multi antennas, several important parameters such as the transient surface current responses, return-loss, coupling coefficients, and directivities are obtained.Based on these parameters, the analysis of the radiation and mutual coupling problems is performed.Moreover, numerical results also demonstrate the efficiency and accuracy of the proposed method.

Key words: marching-on-in time(MOT), approximate prolate spheroidal wave function(APSWF), multi antennas

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