Thesis (M.S.E.E.)--University of Puerto Rico, Mayagüez Campus, 2004. / Printout. Tables. Includes bibliographical references (leaves 122-124).

Thesis (M.S.)--Michigan State University. Dept. of Electrical and Computer Engineering, 2008. / "Thesis advisor, Dr. Edward J. Rothwell"--Acknowledgments. Title from PDF t.p. (viewed on July 29, 2009) Includes bibliographical references (p. 171-174). Also issued in print.

Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaf 75).

There is a demand for compact, low profile, and wideband antennas for modem wireless devices. The purpose of this dissertation is to develop two such antennas. A method of moments and finite difference time domain method are used for the design and analysis of the antennas. A new microstrip antenna is designed which has more than 90 % bandwidth. The operation of the antenna is explained and design equations are developed. The antenna is integrated with electromagnetic band gap structures (EBG) to examine if performance enhancement is possible. The simulation results are verified by limited measurements. A wideband loop antenna is also integrated with EBGs and significant perfbrrnance improvement is achieved.

A dissertation submitted to the Faculty of Engineering, University of the Witwatersrand, Johannesburg, infulfilment of the requirements for the degree of Master of Science in Engineering Johannesburg, 1989 / T his dissertation examines simple Meteor Burst Communication (M B C) out-starioL * i-^nas. The eSect o f illum ination gain, beam w idth and orientation was studied using computer ^vr.t-iation. Sim ilarly, the performance o f M B C links using a half-wave dipole, a quarter-wave rnonopole, a square loop, a long w ue and a 5-elements Yagi-Uda antennas was determined. The performance o f these links are related to the antennas’ sky i l l umination. This investigation provides designers some bench-mark results which indicate the role played by the antennas ’ radiation patterns in M B C. A value system was formulated to provide practical and electrical trade-offs fo r m obile andmanpack antennas in the meteor scatter environment. Simulated results indicate that simple antennas cause degraded communications due to their reduced size and complexity. The conclusion is that the directional master station should provide adequate sky illumination. I t is recommended that the results obtained be validated by measurements and further work concentrate on master station antennas.

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