Second-Order Temporal-Accurate Scheme for 3-D LOD-FDTD Method With Three Split Matrices

被引：6

作者：

Yang, Zaifeng ^{[1
]}

Tan, Eng Leong ^{[1
]}

Heh, Ding Yu ^{[1
]}

机构：

[1] Nanyang Technol Univ, Singapore 639798, Singapore

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷

关键词：

Locally one-dimensional finite-difference time-domain (LOD-FDTD); second-order temporal accuracy; unconditional stability; EQUATIONS;

D O I：

10.1109/LAWP.2015.2394773

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：

This letter presents a second-order temporal-accurate scheme for three-dimensional (3-D) locally one-dimensional finite-difference time-domain (LOD-FDTD) method with three split matrices. The main iterations of the proposed scheme comprise only one more procedure in addition to the existing three procedures. Using proper (initial only) input and (often infrequent, field-point only) output processings, the second-order temporal accuracy is achieved and verified analytically. To further enhance the efficiency, the proposed scheme is implemented based on the principle of fundamental schemes for unconditionally-stable FDTD methods, which feature a matrix-operator-free right-hand side. Stability analysis is provided to ascertain the unconditional stability of the proposed scheme and numerical results are demonstrated to justify its higher accuracy.

引用

页码：1105 / 1108

页数：4

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