Mixed Discretization of the Time-Domain MFIE at Low Frequencies

被引：6

作者：

Ulku, H. Arda ^{[1
,2
]}

Bogaert, Ignace ^{[3
,4
]}

Cools, Kristof ^{[5
]}

Andriulli, Francesco P. ^{[6
]}

Bagci, Hakan ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol, Div Comp Elect & Math Sci & Engn, Thuwal 239556900, Saudi Arabia

[2] Gebze Tech Univ, Dept Elect Engn, TR-41400 Kocaeli, Turkey

[3] Univ Ghent, Dept Informat Technol, B-9000 Ghent, Belgium

[4] ArcelorMittal, B-9042 Ghent, Belgium

[5] Univ Nottingham, Dept Elect & Elect Engn, Nottingham NG7 2RD, England

[6] TELECOM Bretagne, Microwave Dept, F-29238 Brest, France

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷

基金：

英国工程与自然科学研究理事会;

关键词：

Buffa-Christiansen (BC) functions; low-frequency analysis; magnetic field integral equation (MFIE); marching-on-in-time (MOT) method; mixed discretization; transient analysis; FIELD INTEGRAL-EQUATION; VERY-LOW FREQUENCIES; MAGNETIC-FIELD; PRECONDITIONER; SCATTERING; EFIE;

D O I：

10.1109/LAWP.2017.2651045

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：

Solution of the magnetic field integral equation, which is obtained by the classical marching-on-in-time (MOT) scheme, becomes inaccurate when the time-step is large, i.e., under low-frequency excitation. It is shown here that the inaccuracy stems from the classical MOT scheme's failure to predict the correct scaling of the current's Helmholtz components for large time-steps. A recently proposed mixed discretization strategy is used to alleviate the inaccuracy problem by restoring the correct scaling of the current's Helmholtz components under low-frequency excitation.

引用

页码：1565 / 1568

页数：4

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