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
收藏
页码：651 / 653
页数：3
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