Multiresolution time-domain (MRTD) adaptive schemes using arbitrary resolutions of wavelets

被引：30

作者：

Tentzeris, EM ^{[1
]}

Cangellaris, A

Katehi, LPB

Harvey, J

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

[2] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

[3] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

[4] USA, Res Off, Res Triangle Pk, NC 27709 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2002年 / 50卷 / 02期

基金：

美国国家科学基金会;

关键词：

adaptive gridding; FDTD; MRTD; time-domain techniques; wavelets;

D O I：

10.1109/22.982230

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：

A space- and time-adaptive two-dimensional multiresolution time-domain (MRTD) algorithm based on arbitrary resolutions of Battle-Lemarie wavelets is proposed. Analytic expressions for the finite-summation coefficients are derived and details concerning the modeling of hard boundaries, excitation, and field reconstruction are extensively discussed. Through the use of a combination of absolute and relative thresholding, a dynamically changing grid is developed with minimal computational requirements in comparison to the finite-difference time-domain technique. After the validation process, MRTD is used for the first time for the numerical optimization of complex RF structures such as evanescent-mode filters.

引用

页码：501 / 516

页数：16

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