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应用科学学报 ›› 2006, Vol. 24 ›› Issue (5): 458-462.

• 论文 • 上一篇    下一篇

一种分析宽带天线特性的快速有效方法

张云峰, 曹伟   

  1. 南京邮电大学无线通信与电磁兼容实验室, 江苏南京 210003
  • 收稿日期:2005-07-07 修回日期:2005-11-15 出版日期:2006-09-30 发布日期:2006-09-30
  • 作者简介:张云峰,博士生,研究方向:计算电磁学及其在信息技术中的应用,E-mail:zhangyunfeng@njupt.edu.cn;曹伟,教授,博导,研究方向:计算电磁学和电磁场数值计算,E-mail:caow@njupt.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(60432040)

Fast Analysis of Wideband Antenna Characteristics

ZHANG Yun-feng, CAO Wei   

  1. Wireless Communications and Electromagnetic Compatibility Laboratory, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2005-07-07 Revised:2005-11-15 Online:2006-09-30 Published:2006-09-30

PDF

126

被引次数

3

摘要： 提出一种快速分析天线宽带特性的有效算法.该方法利用特征模对天线给定频带内少数频率点进行分析,选取这些频率点主要特征模函数组构成降维子空间;利用奇异值分解技术,构造该频带内一组与频率无关的特征模正交基.运用特征模正交基可以快速获得天线频带内所有频率点的特性.文中分析了蝶形天线与宽带缝隙天线给定频带内特性,并将计算结果与一般矩量法计算结果作比较,两者之间具有良好的一致性.

关键词: 特征模, 基函数, 矩量法, 宽带天线, 降维子空间, 奇异值分解

Abstract: A method for analyzing wideband antennas is introduced.Characteristic modes and singular value decomposition are used at a small number of frequencies, and a set of frequency independent basis functions is constructed over the entire frequency range.The antenna characteristics can be determined rapidly by the frequency independent basis functions.A bowtie antenna and a slotted antenna are analyzed using the proposed method.The results agree with those obtained by direct method of moments, indicating correctness and effectiveness of the method.

Key words: characteristic modes, basis functions, reduced order subspace, method of moments, wideband antenna, singular value decomposition

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