Mwave.ee.cuhk.edu.hk
Special Antenna Lecture
| |
|Recent Results on |
|Dielectric Resonator Antennas and Printed Antennas |
|by |
|Dr Kai-Fong Lee, FIEEE |
|Dean of the School Engineering and Professor of Electrical Engineering |
|The University of Mississippi |
|University, MS 38655, USA |
| |
Abstract
Printed antennas and dielectric resonator antennas have found extensive applications in modern wireless communication applications. They offer the advantages of light weight, low profile, low cost, high efficiency, and ease of fabrication. In addition, they can be designed to radiate different types of polarizations. This seminar will discuss recent researches at the University of Mississippi on bandwidth enhancement and size reduction techniques of these antennas. Results to be presented on DRA include: (a) a simple cylindrical DRA having an impedance bandwidth exceeding 25%; (b) an inverted staircase square DRA having an impedance bandwidth exceeding 60%; (c) a slot excited circularly polarized DRA having an axial radio bandwidth exceeding 10%. Results to be presented on printed antennas include: (d) uni-directional ultra wideband (>100% bandwidth) printed slot antennas excited by a microstrip line and by a coplanar waveguide; (e) small size wide-bandwidth half U-slot and half E-shaped patched antennas.
Biography
Kai-Fong Lee received his B.Sc. and M.Sc. degrees from Queen’s University, Canada in 1961 and 1963 respectively and his Ph.D. degree from Cornell University in 1966, all in electrical engineering.. He held research appointments at UC San Diego (1966-67), National Center for Atmospheric Research (1968-69), National Oceanic and Atmospheric Administration (1972-73), UCLA (summer 1975) and NASA (summers, 1986, 1987). He was Assistant/Associate Professor at the Catholic University of America, Washington, D. C. (1967-72), Lecturer/Senior Lecturer/Reader at The Chinese University of Hong Kong (1973-84), and Professor at The University of Akron, Ohio (1985-88). He was the founding Head of the Department of Electronic Engineering at the City University of Hong Kong (1984-85). He served as Professor and Chairman of the Department of Electrical Engineering at The University of Toledo from 1988 to 1995 and Chairman and LaPierre Professor of the Department of Electrical Engineering at the University of Missouri-Columbia from January 1996 to December 2000. Since January 2001, he has been Dean of Engineering and Professor of Electrical Engineering at the University of Mississippi.
Professor Lee worked on plasma waves and instabilities from 1965-1980 and on antennas since 1981. His publications include a textbook (PRINCIPLES OF ANTENNA THEORY, WILEY 1984), an edited book (ADVANCES IN MICROSTRIP AND PRINTED ANTENNAS, WILEY-INTERSCIENCE 1997), ten invited book chapters on microstrip antennas, 162 Journal Articles and 130 conference papers. He is a Fellow of IEEE and a Fellow of IEE.
Date : August 6, 2004 (Friday)
Time : 3:30 pm – 5:00 pm
[Reception starts at 3:15 pm]
Venue : G6302, 6/floor, Green Zone, Academic Building
City University of Hong Kong
ALL Are Welcome
Language: English
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