Title page for ETD etd-0506104-111936

Document Type thesis

Author Name Kulkarni, Shashank Dilip

URN etd-0506104-111936

Title MoM modeling of metal-dielectric structures using volume integral equations

Degree MS

Department Electrical & Computer Engineering

Advisors
Dr. Sergey Makarov, Advisor
Dr. David Cyganski, Committee Member
Dr. Reinhold Ludwig, Committee Member
Dr. Brian King, Committee Member

Keywords
volume integral equations
patch antenna
reonators
MoM

Date of Presentation/Defense 2004-05-06

Availability unrestricted

Abstract
Modeling of patch antennas and resonators on arbitrary dielectric substrates using surface RWG and volume edge based basis functions and the Method of Moments is implemented. The performance of the solver is studied for different mesh configurations. The results obtained are tested by comparison with experiments and Ansoft HFSS v9 simulator. The latter uses a large number of finite elements (up to 200K) and adaptive mesh refinement, thus providing the reliable data for comparison.

The error in the resonant frequency is estimated for canonical resonator structures at different values of the relative dielectric constant ƒÕr, which ranges from 1 to 200. The reported results show a near perfect agreement in the estimation of resonant frequency for all the metal-dielectric resonators.

Behavior of the antenna input impedance is tested, close to the first resonant frequency for the patch antenna. The error in the resonant frequency is estimated for different structures at different values of the relative dielectric constant ƒÕr, which ranges from 1 to 10. A larger error is observed in the calculation of the resonant frequency of the patch antenna. Moreover, this error increases with increase in the dielectric constant of the substrate. Further scope for improvement lies in the investigation of this effect.

Files
skulkarni.pdf

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Document Type	thesis
Author Name	Kulkarni, Shashank Dilip
URN	etd-0506104-111936
Title	MoM modeling of metal-dielectric structures using volume integral equations
Degree	MS
Department	Electrical & Computer Engineering
Advisors	Dr. Sergey Makarov, Advisor Dr. David Cyganski, Committee Member Dr. Reinhold Ludwig, Committee Member Dr. Brian King, Committee Member
Keywords	volume integral equations patch antenna reonators MoM
Date of Presentation/Defense	2004-05-06
Availability	unrestricted
Abstract Modeling of patch antennas and resonators on arbitrary dielectric substrates using surface RWG and volume edge based basis functions and the Method of Moments is implemented. The performance of the solver is studied for different mesh configurations. The results obtained are tested by comparison with experiments and Ansoft HFSS v9 simulator. The latter uses a large number of finite elements (up to 200K) and adaptive mesh refinement, thus providing the reliable data for comparison. The error in the resonant frequency is estimated for canonical resonator structures at different values of the relative dielectric constant ƒÕr, which ranges from 1 to 200. The reported results show a near perfect agreement in the estimation of resonant frequency for all the metal-dielectric resonators. Behavior of the antenna input impedance is tested, close to the first resonant frequency for the patch antenna. The error in the resonant frequency is estimated for different structures at different values of the relative dielectric constant ƒÕr, which ranges from 1 to 10. A larger error is observed in the calculation of the resonant frequency of the patch antenna. Moreover, this error increases with increase in the dielectric constant of the substrate. Further scope for improvement lies in the investigation of this effect.
Files	skulkarni.pdf