快速分析线面结构天线宽带特性的扫频方法

doi:10.3969/j.issn.1001-2400.2014.01.016

J4 ›› 2014, Vol. 41 ›› Issue (1): 87-91.doi: 10.3969/j.issn.1001-2400.2014.01.016

快速分析线面结构天线宽带特性的扫频方法

吕政良;龚书喜;张鹏飞;赵博;王夫蔚

(西安电子科技大学天线与微波技术重点实验室，陕西西安 710071)

收稿日期:2012-10-28 出版日期:2014-02-20 发布日期:2014-04-02
通讯作者: 吕政良
作者简介:吕政良(1986-)，男，西安电子科技大学博士研究生，E-mail：zhenglianglv@stu.xidian.edu.cn．
基金资助:
国家自然科学基金资助项目(61201023)；新世纪优秀人才支持计划资助项目(NCET-11-0690)

Fast frequency sweep analysis for antennas mounted on platforms using the wire-surface model

Lü Zhengliang;GONG Shuxi;ZHANG Pengfei;ZHAO Bo;WANG Fuwei

(Science and Technology on Antenna and Microwave Lab., Xidian Univ., Xi'an 710071， China)

Received:2012-10-28 Online:2014-02-20 Published:2014-04-02
Contact: Lü Zhengliang

摘要/Abstract

摘要：

将最佳一致有理逼近与矩量法有效结合，分析了载体平台上线面结构天线的宽带辐射特性．将天线线面结构转化为面面连接模型，在应用离散小波变换方法求解矩阵方程的基础上与切比雪夫逼近相结合以有效求得辐射问题中的面电流，极大地节省了存储空间．相比于切比雪夫逼近，由于梅利逼近展开式为有理函数，因此提高了计算精度．数值结果表明，该方法可以快速有效地分析线面结构天线的宽带辐射特性．

关键词: 矩量法, 线面结合, 离散小波变换, 梅利逼近

Abstract:

The best uniform rational approximation in conjugation with the method of moments (MoM) is applied to analyze the wide-band electromagnetic characteristic of the wire-surface objects. For the analysis of wire-surface objects, all the wire-surface models are substituted by surface-surface models, and then the radiation problem can be solved more efficiently by the Chebyshev approximation for the surface current combined with discrete wavelet transform (DWT). This technique offers a considerable computational saving in terms of memory. To improve the accuracy, the polynomial series is replaced by the Maehly series and the best uniform rational approximation is obtained. Numerical examples are performed to demonstrate the validity.

Key words: method of moments(MoM), wire-surface objects, discrete wavelet transform, Maehly

中图分类号:

O441

吕政良;龚书喜;张鹏飞;赵博;王夫蔚. 快速分析线面结构天线宽带特性的扫频方法[J]. J4, 2014, 41(1): 87-91.

Lü Zhengliang;GONG Shuxi;ZHANG Pengfei;ZHAO Bo;WANG Fuwei. Fast frequency sweep analysis for antennas mounted on platforms using the wire-surface model[J]. J4, 2014, 41(1): 87-91.

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快速分析线面结构天线宽带特性的扫频方法

Fast frequency sweep analysis for antennas mounted on platforms using the wire-surface model

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