MOM analysis of conducting structures involving both surfaces and wires by using junction basis functions /

Demircan, Kutluhan
In this thesis a structure with thin wire attached to a PEC plate is analyzed numerically by using Method of Moments (MoM) with Galerkin’s testing scheme. The structure is divided into two parts: the plate and the thin wire and each part is analyzed separately. The RWG basis functions are chosen as basis/testing functions for the plate, piecewise linear basis/testing function is chosen for the thin wire and an attachment mode basis function that is compatible with RWG and piecewise linear basis functions is applied at the junction. To overcome the singularity problem that occurs during the computation of MoM matrix entries, different singularity handling methods are used and the obtained results are presented. First, scattering from a conducting plate and a conducting wire are analyzed separately. Then these two structures are combined in a non-contacting configuration and this combined structure is analyzed by incorporating the interaction between the wire and the plate. Finally, these two structures are combined in a contacting configuration and analyzed by making use of an attachment current at the contact point.


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Batur, Mehmet Nazım; Alatan, Lale; Department of Electrical and Electronics Engineering (2015)
Mixed Potential Integral Equation based Method of Moments (MoM) code is developed in MATLAB environment to analyze a loaded printed dipole antenna. Closed-form spatial domain Green's functions are used in the formulation. The developed code is utilized in the analyses of Electrically Small Antennas (ESAs). It is known that real part of the input impedance of an ESA is very low, whereas imaginary part is negative and high. The inductive loading method is used in order to overcome this problem. Effects of loa...
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Yeni, Burcu; Dural Ünver, Mevlüde Gülbin; Department of Electrical and Electronics Engineering (2015)
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...
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Citation Formats
K. Demircan, “MOM analysis of conducting structures involving both surfaces and wires by using junction basis functions /,” M.S. - Master of Science, Middle East Technical University, 2015.