Student Paper 2.19
WIDEBAND BOW-TIE SLOT ANTENNA WITH TUNING STUBS

Atef Z Elsherbeni - The University of Mississippi, Abdelnasser A. Eldek - The University of Mississippi, Charles E. Smith - The University of Mississippi

Tue, 27 April 2004, 3:20 PM - 4:10 PM

Abstract

Printed bow-tie and bow-tie slot antennas are planar-type variations of the biconical antenna that has wideband characteristics. In this paper, we present the effects of adding a tapered metal stub to a bow-tie slot antenna design to enhance the antenna bandwidth for X-band operation. Our study yields a design with 88% bandwidth relative to 10 GHz. The simulation and analysis are performed using the commercial computer software package, Momentum of Agilent Technologies, Advanced Design System (ADS). Verification of the ADS results is performed by using our developed finite difference time domain (FDTD) code and with measurements of the return loss from 7 to 15 GHz.

Bios

Atef Z. Elsherbeni received an honor B.Sc. degree in Electronics and Communications, an honor B.Sc. degree in Applied Physics, and a M.Eng. degree in Electrical Engineering, all from Cairo University, Cairo, Egypt, in 1976, 1979, and 1982, respectively, and a Ph.D. degree in Electrical Engineering from Manitoba University, Winnipeg, Manitoba, Canada, in 1987. He was a Research Assistant with the Faculty of Engineering at Cairo University from 1976 to 1982, and from 1983 to 1986 at the Electrical Engineering Department, Manitoba University. He was a part time Software and System Design Engineer from March 1980 to December 1982 at the Automated Data System Center, Cairo, Egypt. From January to August 1987, he was a Post_Doctoral Fellow at Manitoba University. Dr. Elsherbeni joined the faculty at the University of Mississippi in August 1987 as an Assistant Professor of Electrical Engineering. He advanced to the rank of Associate Professor on July 1991, and to the rank of Professor on July 1997. He spent a sabbatical term in 1996 at the Electrical Engineering Department, University of California at Los Angeles (UCLA). Dr. Elsherbeni received The Mississippi Academy of Science 2003 Outstanding Contribution to Science Award, The 2002 IEEE Region 3 Outstanding Engineering Educator Award, The 2002 School of Engineering Outstanding Engineering Faculty Member of the Year Award, the 2001 Applied Computational Electromagnetic Society (ACES) Exemplary Service Award for leadership and contributions as Electronic Publishing managing Editor 1999-2001, the 2001 Researcher/Scholar of the year award in the Department of Electrical Engineering, The University of Mississippi, and the 1996 Outstanding Engineering Educator of the IEEE Memphis Section. Dr. Elsherbeni has conducted research in several areas such as: scattering and diffraction by dielectric and metal objects, inverse scattering, finite difference time domain analysis of passive and active microwave devices, field visualization and software development for EM education, dielectric resonators, interactions of electromagnetic waves with human body, and development of sensors for soil moisture and for monitoring of airports noise levels, reflector antennas and antenna arrays, and analysis and design of printed antennas for wireless communications and for radars and personal communication systems. His recent research has been on the application of numerical techniques to microstrip and planar transmission lines, antenna measurements, and antenna design for radar and personal communication systems. He has published 65 technical journal articles and 12 book chapters on applied electromagnetics, antenna design, and microwave subjects, and contributed to 210 professional presentations. He is the coauthor of the book entitled ?MATLAB Simulations for Radar Systems Design?, CRC Press, 2003 and the main author of the chapters ?Handheld Antennas? and ?The Finite Difference Time Domain Technique for Microstrip Antennas? in Handbook of Antennas in Wireless Communications, CRC Press, 2001. Dr. Elsherbeni is a senior member of the Institute of Electrical and Electronics Engineers (IEEE). He is the Editor-in-Chief for the Applied Computational Electromagnetic Society (ACES) Journal, an Associate Editor to the Radio Science Journal, and the electronic publishing managing editor of ACES. His honorary memberships include the Electromagnetics Academy and the Scientific Sigma Xi Society. He serves on the editorial board of the Book Series on Progress in Electromagnetic Research, the Electromagnetic Waves and Applications Journal, and the Computer Applications in Engineering Education Journal. He is the Chair of the Engineering and Physics Division of the Mississippi Academy of Science and the past Chair of the Educational Activity Committee for the IEEE Region 3 Section. Dr. Elsherbeni?s home page can be found at http://www.ee.olemiss.edu/atef and his email address is Elsherbeni@ieee.org.

Mr. Abdelnasser A. Eldek - The University of Mississippi

Abdelnasser Eldek received an honor B.SC. Degree in electronics and communications engineering from Zagazig University, Zagazig, Egypt, in 1993 and an MS. degree in electrical engineering from Eindhoven University of technology, Eindhoven, the Netherlands, in 1999. He was a research assistant with the electronic research institute, in Cairo, Egypt, from 1995 to 1997, and from 1997 to 1999 he was a master student at Eindhoven university of technology with the cooperation of Philips center for technology and Fontys University for professional education, Eindhoven. From 1999 to 2000 he was assistant teacher in the industrial education college, Beni Suif,Eegypt. He is currently working towards his Ph.D. Degree and is a research assistant at the department of electrical engineering, the University of Mississippi.

Dr. Charles E. Smith - The University of Mississippi

Charles E. Smith was born in Clayton, AL, on June 8, 1934. He received the B.E.E., M.S., and Ph.D. degrees from Auburn University, Auburn, AL, in 1959, 1963, and 1968, respectively. While pursuing his advanced degrees from 1959 to 1968, he was employed as a Research Assistant with Auburn University Research Foundation. In late 1968, he accepted the position of Assistant Professor of Electrical Engineering with The University of Mississippi, University, MS, and he advanced to the rank of Associate Professor in 1969. He was appointed Chairman of the Department of Electrical Engineering in 1975, and he is currently Professor and Chair of this department. He has directed and is heavily involved in the development of The University's current circuits, electronics, HF and microwave, computer-aided-design, and digital systems courses and laboratories. His main areas of interest are related to the application of electromagnetic theory to microwave circuits, antennas, measurements, RF and wireless systems, radar, digital and analog electronics, and computer-aided design. His recent research has been on the application of numerical techniques to microstrip transmission lines, antenna measurements in lossy media, measurement of electrical properties of materials, CAD in microwave circuits, radar designing, and data acquisition using network analyzers. Dr. Smith has published widely in these areas and has over 200 total publications including journal papers, technical reports, book chapters, and paper presentations. He has advised, or co-advised, 46 M.S. thesis and PH.D dissertations, and has received 6 awards for outstanding teaching and scholarship at The University of Mississippi. He is a Life Senior Member of the IEEE and is a member of the IEEE Antennas and Propagation Society, IEEE Microwave Theory and Techniques Society, IEEE Education Society, American Society of Engineering Education, Phi Kappa Phi, Eta Kappa Nu, Tau Beta Pi, and Sigma Xi.