Analysis and design of reactively loaded dual band microstrip antenna

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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: 2015

Öğrenci: CANER BAYRAM

Danışman: SEYİT SENCER KOÇ

Özet:

This thesis includes the design, production and measurement of a reactively loaded microstrip patch antenna. The dual band and circular polarization operation are achieved through the use of narrow slots etched close to the radiating edges on a nearly square patch. During the design process, the effects of antenna parameters on the input impedance and axial ratio characteristics are investigated. A step-by-step procedure is followed during the design process. First, the dual band characteristic is investigated on a slot loaded rectangular patch. Then, an attention is given to improve the circular polarization. Finally, the desired structure is analyzed and information about the design parameters is obtained by means of parametric study. These parametric analyses are done in full wave electromagnetic solver tool HFSS. The designed dual band circularly polarized microstrip patch antenna is manufactured and measured. Acceptable agreement between simulation and measurement results is obtained.