Available at: https://digitalcommons.calpoly.edu/theses/3278
Date of Award
6-2026
Degree Name
MS in Electrical Engineering
Department/Program
Electrical Engineering
College
College of Engineering
Advisor
Payam Nayeri
Advisor Department
Electrical Engineering
Advisor College
College of Engineering
Abstract
As the modern world becomes increasingly connected through advancements in Wi-Fi and cellular communication, various antenna technologies are being developed and utilized to address these growing communication challenges. Common issues include the demand for wider bandwidth, limited coverage area, and low spectral efficiency. Many researchers have focused on antennas the likes of spiral, Yagi-Uda, and patch antennas, while overlooking the Dielectric Resonator Antenna. This thesis will demonstrate the capability of the DRA as a solution for emerging communication systems by presenting five new designs: two with bandwidth enhancements increase from 6% to over 50%, two with in-band full-duplex capability, and an array with both high directivity and in-band full-duplex capability. Across these five designs, the flexibility of the DRA is fully utilized, ranging from modifying the resonator material properties and geometry to altering the feeding structure and the number of ports. Through these approaches, we were able to achieve a bandwidth of over 50% , as well as the ability to simultaneously transmit and receive with interference levels below -45 dB.