Masters Theses
Abstract
"This thesis consists of two parts. In Part 1, a method for reconstruction of the parameters of Debye or Lorentzian dispersive media using a genetic algorithm is proposed. In this method, S-parameters of a simple parallel-plate transmission line fixture filled with dispersive medium are measured first. Then, a transmission line model is set up, based on the test fixture in frequency domain for the genetic algorithm, provided a single TEM mode propagates in the parallel-plate waveguide. The genetic algorithm is used for searching the parameters of the dispersive medium by means of minimizing the discrepancy between the measured and modeled S-parameters. The results are verified using a full-wave numerical Finite-Difference Time-Domain (FDTD) method, realized as the EZ-FDTD codes.
In Part 2, the fundamental technique of EZ-FDTD based on Maxwell’s curl equations and Yee’s algorithm is presented. The basic elements, source, media, absorbing boundary conditions and output files are given in detail for building an EZ-FDTD model. A brief introduction to the EZ-FDTD GUI, a graphical user interface, and some special notes for applications are also presented. Finally, three EZ-FDTD modeling examples are presented, and a comparison between the simulations and measurements is given to demonstrate agreement between the two"--Abstract, page iii.
Advisor(s)
Drewniak, James L.
Committee Member(s)
Pommerenke, David
Koledintseva, Marina
O'Keefe, Matthew
Department(s)
Electrical and Computer Engineering
Degree Name
M.S. in Electrical Engineering
Research Center/Lab(s)
Electromagnetic Compatibility (EMC) Laboratory
Publisher
University of Missouri--Rolla
Publication Date
Fall 2003
Pagination
x, 62 pages
Note about bibliography
Includes bibliographical references (pages 60-61).
Rights
© 2003 Jianmin Zhang, All rights reserved.
Document Type
Thesis - Restricted Access
File Type
text
Language
English
Thesis Number
T 8383
Print OCLC #
55079664
Link to Catalog Record
Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.
http://merlin.lib.umsystem.edu/record=b5082807~S5Recommended Citation
Zhang, Jianmin, "Reconstruction of the parameters of Debye and Lorentzian dispersive media using a genetic algorithm and features and applications of EZ-FDTD" (2003). Masters Theses. 2415.
https://scholarsmine.mst.edu/masters_theses/2415
Share My Thesis If you are the author of this work and would like to grant permission to make it openly accessible to all, please click the button above.