On the relationship between the time-domain and frequency-domain TLM methods

被引:7
作者
Chen, Zhizhang [1 ]
Ney, Michel M. [1 ]
机构
[1] Dalhousie Univ, Dept Elect & Comp Engn, Microwave & Wireless Res Lab, Halifax, NS B3J 2X4, Canada
来源
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2008年 / 7卷 / 46-49期
关键词
discrete-time Fourier transform; frequency-domain; time-domain; transmission line matrix (TLM) method;
D O I
10.1109/LAWP.2008.915803
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
The time-and frequency-domain transmission line matrix (TLM) methods have been developed and shown to be effective and powerful in solving electromagnetic problems. However, their direct relationship has not been clearly described so far. In this letter, we show that if a time-domain TLM method is developed, its corresponding frequency-domain counterpart can also be obtained through the discrete time Fourier transform; in a similar manner, if a frequency-domain TLM method is developed, its time-domain counterpart can also be obtained through the inverse discrete time Fourier transform. The choice of using the frequency- or time-domain depends very much on the types of the problems to be solved and the familiarity of a user with the methods.
引用
收藏
页码:46 / 49
页数:4
相关论文
共 12 条
[1]   A NEW FINITE-DIFFERENCE TIME-DOMAIN FORMULATION AND ITS EQUIVALENCE WITH THE TLM SYMMETRICAL CONDENSED NODE [J].
CHEN, ZH ;
NEY, MM ;
HOEFER, WJR .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1991, 39 (12) :2160-2169
[2]  
Christopoulos C., 1995, TRANSMISSION LINE MO
[4]   DIRECT DERIVATIONS OF TLM SYMMETRICAL CONDENSED NODE AND HYBRID SYMMETRICAL CONDENSED NODE FROM MAXWELLS EQUATIONS USING CENTERED DIFFERENCING AND AVERAGING [J].
JIN, H ;
VAHLDIECK, R .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1994, 42 (12) :2554-2561
[5]   THE FREQUENCY-DOMAIN TRANSMISSION-LINE MATRIX-METHOD - A NEW CONCEPT [J].
JIN, H ;
VAHLDIECK, R .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1992, 40 (12) :2207-2218
[6]   NEW FREQUENCY-DOMAIN TLM METHOD FOR THE NUMERICAL-SOLUTION OF STEADY-STATE ELECTROMAGNETIC PROBLEMS [J].
JOHNS, D ;
CHRISTOPOULOS, C .
IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, 1994, 141 (04) :310-316
[7]   NUMERICAL SOLUTION OF 2-DIMENSIONAL SCATTERING PROBLEMS USING A TRANSMISSION-LINE MATRIX [J].
JOHNS, PB ;
BEURLE, RL .
PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON, 1971, 118 (09) :1203-+
[8]   A SYMMETRICAL CONDENSED NODE FOR THE TLM METHOD [J].
JOHNS, PB .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1987, 35 (04) :370-377
[9]   Generalized material models in TLM - Part I: Materials with frequency-dependent properties [J].
Paul, J ;
Christopoulos, C ;
Thomas, DWP .
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1999, 47 (10) :1528-1534
[10]   HYBRID SYMMETRICAL CONDENSED NODE FOR THE TLM METHOD [J].
SCARAMUZZA, R ;
LOWERY, AJ .
ELECTRONICS LETTERS, 1990, 26 (23) :1947-1949