Integrated multi-band multi-polarized microstrip antenna designs
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Abstract
Recently, antenna designs with multi-frequency operation and multi-polarization characteristics are in great demand for future wireless systems. In the thesis, several integrated microstrip antenna designs have been proposed for wireless applications. Integrated semi-circular and triangular patch antennas have been designed for various wireless data communication applications exhibiting linear polarization characteristics. In these designs, the patch has been integrated with slots and monopoles for multi-resonance operation. Another multi-band antenna realizing annular ring patch configuration has been designed for similar wireless applications. A technique to independently tune the frequencies of operation has also been introduced. Furthermore, a single layer, multi-band rectangular patch antenna has been proposed for data transmission and localization applications with different polarization requirements. The patch has been integrated with four monopoles to achieve circularly and linearly polarized radiation characteristics. The design procedures of the antennas have been described and their performances have been validated using electromagnetic solvers and measurements.