A Low Dispersion Precise Integration Time Domain Method Based on Wavelet Galerkin Scheme

被引：11

作者：

Sun, Gang ^{[1
]}

Ma, Xikui ^{[1
]}

Bai, Zhongming

机构：

[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Shaanxi, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2010年 / 20卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Dispersion; Moment methods; Time domain analysis; Microstrip antennas; Finite difference methods; Numerical stability; wavelet Galerkin scheme; Daubechies scaling functions; precise integration time domain (PITD) method; STABILITY;

D O I：

10.1109/LMWC.2010.2079920

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To decrease the dispersion error of the precise integration time domain (PITD) method, a new algorithm named the wavelet Galerkin scheme-based PITD (WG-PITD) method is proposed in this letter. The novel method is based on both the wavelet Galerkin scheme and the precise integration technique. The dispersion relation of the WG-PITD method is derived analytically. It is found that the dispersion error of the WG-PITD method is smaller than that of the PITD method, and can be made nearly independent of the time step size. The numerical results confirm the advantages of the WG-PITD method over the PITD method with respect to the memory requirements and the execution time.

引用

页码：651 / 653

页数：3

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