Derivation of green’s functions for spherically stratified media using an equivalent two port network model /

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2015

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Yeni, Burcu

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Derivation of dyadic Green’s functions for a variety of geometries is a problem frequently faced in different fields of electromagnetics including the analysis and design of antennas, waveguides and resonators. In the case of spherically stratified antenna, waveguide or resonator structures, the analytical derivation process of dyadic Green’s functions is often extremely complex while numerical solutions comprise heavy workload. In this thesis, an equivalent two-port network model, which was first developed for the analysis of stratified planar structures and then extended to stratified cylindrical and spherical structures, is utilized to derive the spectral-domain Green’s functions of spherically stratified media including a spherical microstrip antenna and a human head modeled as a spherical multilayer dielectric. This equivalent circuit model approach is applicable to multiple geometries and enables the utilization of simple network analysis techniques for the derivation of Green’s functions in these geometries.

Subject Keywords

Green's functions., Electromagnetism., Antennas (Electronics).

URI

http://etd.lib.metu.edu.tr/upload/12618561/index.pdf
https://hdl.handle.net/11511/24498

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

B. Yeni, “Derivation of green’s functions for spherically stratified media using an equivalent two port network model /,” M.S. - Master of Science, Middle East Technical University, 2015.