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

HU Jin-hua; CHEN Ming-sheng; KONG Meng; SHEN Jing; WU Xian-liang

doi:10.3969/j.issn.0372-2112.2015.03.032

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

更新时间：2025-07-16

- Investigation on the Radiation and Mutual Coupling Problems of Multi Antennas Based on a Stable Time Domain Integral Equation Method
- Acta Electronica Sinica Vol. 43, Issue 3, Pages: 620-624(2015)
- 作者机构：
  
  1. 合肥师范学院电子信息工程学院,安徽,合肥,230601
  2. 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
- 作者简介：
- 基金信息：
  
  Key Program of National Natural Science Foundation of China (No.60931002);National Natural Science Foundation of China (No.51477039);Key Project of Science and Technology of Ministry of Education (No.212081);Youth Fund of National Natural Science Foundation of China (No.61301062);Excellnet Young Talent Foundation of Universities in Anhui Province (No.2012SQRL162ZD);Academic Leader Program of Anhui Province
- DOI：10.3969/j.issn.0372-2112.2015.03.032
  CLC： TN011
- Published：2015
- 稿件说明：
移动端阅览
HU Jin-hua, CHEN Ming-sheng, KONG Meng, et al. Investigation on the Radiation and Mutual Coupling Problems of Multi Antennas Based on a Stable Time Domain Integral Equation Method[J]. Acta Electronica Sinica, 2015, 43(3): 620-624.
DOI：

HU Jin-hua, CHEN Ming-sheng, KONG Meng, et al. Investigation on the Radiation and Mutual Coupling Problems of Multi Antennas Based on a Stable Time Domain Integral Equation Method[J]. Acta Electronica Sinica, 2015, 43(3): 620-624. DOI： 10.3969/j.issn.0372-2112.2015.03.032.

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.

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.

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Related Author

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Related Institution

Department of Electronic Engineering, State Key Laboratory on Microwave and Digital Communications, Tsinghua University

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