Küresel katmanlı yapılarda iki kapılı eşdeğer devre modeli kullanılarak green fonksiyonlarının elde edilmesi.

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Türkiye

Tezin Onay Tarihi: 2015

Tezin Dili: İngilizce

Öğrenci: Burcu Yeni

Danışman: MEVLÜDE GÜLBİN DURAL ÜNVER

Özet:

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.