Time -Domain Finite -Element Simulation of Large Antennas and Antenna Arrays

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.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Electrical and Computer Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Lou, Zheng

Contributors dc:contributor

• Jin, Jianming

• Engineering, Electronics and Electrical

Language dc:language

eng

Identifier

(MiAaPQ)AAI3242926

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/80980