Method of moments analysis of slotted waveguide antenna arrays

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2014

Öğrenci: ABDÜLKERİM ALTUNTAŞ

Danışman: LALE ALATAN

Özet:

Slotted waveguide antenna arrays are used extensively in many applications because of their high power handling capability, planarity, low loss and reduced profile. After the synthesis of such an array, the design should be verified by analyzing the array with an efficient simulation tool which is accurate, fast and flexible. Although FEM (Finite Element Method) based commercial softwares are very accurate and flexible, they are not sufficiently fast especially when it comes to optimization and fine tuning. The aim of this study is to develop a MoM based simulation software to analyze slotted waveguide antenna arrays. The developed code is aimed to be a building block for a versatile software capable of analyzing different structures, so the code is designed to be open for future manipulations and improvements. A single slot on a waveguide is analyzed by using the developed code and the self admittance of the slot is calculated for different slot offset and length values. The results are compared with the experimental results found in the literature and a fair agreement is observed.