Waveguide and Metaguide Excitation of Dielectric Resonator Antennas

ISBN-13: 9783845432533 / Angielski / Miękka / 180 str.

Islam Eshrah

Opis

The unique features of dielectric resonators and their potential advantages as radiating structures have encouraged researchers over the past two decades to devise various feeding mechanisms or structures suitable for dielectric resonator antennas. Among such structures are microstrip lines, coplanar waveguides, coaxial probes, image lines, and slotted cavities. Also, various geometries of dielectric resonator antennas were investigated, with the goal of introducing antenna geometries that have wide matching bandwidth, stable radiation patterns, and low cross-polarization levels. The aim of this work is to study the excitation of dielectric resonator antennas using rectangular waveguide slots and probes. Thus, the advantages of waveguides as feeding structures having low losses at high frequencies and the inherent wideband nature of dielectric resonator antennas are combined, which increases the system efficiency in the microwave range.

O autorze

Dr. Islam Eshrah obtained his PhD degree in Electrical Engineering in 2005. He is currently an assistant professor at Cairo University, Egypt. He is a member of the IEEE and a reviewer for several transactions. Dr. Eshrah is a recipient of many prestigious awards and has more than 50 journal and conference publications.