Analysis of Dielectric Waveguides and Microstrip Lines Using Krylov Subspace-Based Techniques

In this thesis, we have developed a finite-difference-based frequency domain scheme to analyze a wide variety of waveguides and microstrip lines. The formulation is generalized to account for anisotropic, lossy substrates. In order to speed up the algorithm, the discretization is limited to the two-dimensional transverse plane while propagating the wave analytically along the longitudinal direction. The performance of the algorithm is further improved by using Krylov subspace-based reduction techniques to solve the sparse matrix equation. The numerical technique is also extended to analyze single and multiple discontinuities in the waveguiding structure. Finally, some preliminary work is done on truncation of the computational domain using perfectly matched layers (PML) as a material absorbing boundary conditions.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Electrical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Radhakrishnan, Kaladhar

Contributors dc:contributor

• Chew, Weng Cho

• Engineering, Electronics and Electrical

Language dc:language

eng

Identifier

(MiAaPQ)AAI9955660

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/81324