Masters Theses


Kuifeng Hu

Keywords and Phrases

Finite Difference Time Domain (FDTD)


"Finite Differential Time Domain (FDTD) method has gained increasing interest in modeling of many electromagnetic engineering problems in recent years. It proves to be a reliable numerical modeling tool for electromagnetic modeling, desirable for evaluating EMC performance evaluation, PCB design, antenna design etc. In this work, new features are developed to extend the modeling ability of the conventional FDTD method.

Modeling a system with a given frequency response is challenging for conventional FDTD algorithm. Two algorithms for a two-port network and a lumped ferrite are developed using a time-domain recursive convolution procedure. Herein, a new tool was developed which applies the Generalized Pencil-of-Function (GPOF) technique for extracting the input circuit description parameters for the recursive convolution. Good agreement between the FDTD modeling and S-parameter measurements supports the new FDTD algorithm for incorporating two-port networks. The limitations of this method are discussed herein.

The development of plane wave source condition extends the FDTD modeling ability for some engineering applications, like antenna design and shielding effectiveness evaluation, etc. Two methods incorporated into the FDTD codes, the impressed soft source (ISS) and total field/scatter field (SFITF) methods, are presented in this work. These source conditions are proved to generate plane waves with any incident angle, polarization and featured with four source functions. Some limitations are discussed as well"--Abstract, page iii.


James L Drewniak

Committee Member(s)

Marina Y. Koledintseva
David J. Pommerenke


Electrical and Computer Engineering

Degree Name

M.S. in Electrical Engineering


University of Missouri--Rolla

Publication Date

Fall 2003


ix, 59 pages

Note about bibliography

Includes bibliographical references (page 58)


© 2003 Kuifeng Hu, All rights reserved.

Document Type

Thesis - Restricted Access

File Type




Subject Headings

Electric networks, Two-port
Time-domain analysis -- Mathematical models
Finite differences -- Mathematical models

Thesis Number

T 8411

Print OCLC #


Link to Catalog Record

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