Time -Domain Finite -Element Simulation of Large Antennas and Antenna Arrays
Lou, Zheng
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https://hdl.handle.net/2142/80980
Description
Title
Time -Domain Finite -Element Simulation of Large Antennas and Antenna Arrays
Author(s)
Lou, Zheng
Issue Date
2006
Doctoral Committee Chair(s)
Jin, Jianming
Department of Study
Electrical and Computer Engineering
Discipline
Electrical and Computer Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
The dissertation first introduces the basics of an implicit TDFEM formulation. Then it focuses on the radiation problems and describes the truncation of open free space using the perfectly matched layers and the modeling of the waveguide feed using the waveguide port boundary condition. To handle large computation domain efficiently, a novel dual-field domain decomposition (DFDD) method is developed for the TDFEM. The method is then applied to the simulation of large antennas and antenna arrays. For large finite arrays, a specialized array solver is developed for an even better efficiency. Finally, an explicit TDFEM is derived from the DFDD and its advantages and disadvantages are discussed.
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