Shen, Liang-Chi2022-10-062022-10-0619763721489https://hdl.handle.net/10657/12148Using Watkins' dominant mode design for a circular resonant structure in microstrip, several circular disc radiators were fabricated on a copper-clad laminate of teflon/glass using conventional printed- circuit board etching techniques. The input impedance and far field patterns of these antennas were measured as a function of feed position and dielectric thickness. The effect of a cross-polarizing of the radiators was also measured assuming that Watkins' surface current distribution on the disc for the n=l mode would result in a linearly polarized radiation. Finally, a comparison between the measured and theoretical radiation properties is presented for various combinations of antenna feed position and dielectric thickness.application/pdfenThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.Thesisreformatted digital