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IEEE 杰出演讲人 Yahya Rahmat-Samii 教授

题目:The Art and Science of Antenna Near-Field Measurements and Diagnostics: From fundamentals to     recent Developments (天线近场测量和诊断的艺术与科学:从基础到新近的发展)
时间:2009年9月16日(三)下午15:30-17:00
地点:东南大学(四牌楼校区)李文正楼   6楼  北614会议室
主办:IEEE APMTT-EMC Joint Nanjing Chapter
 东南大学  毫米波国家重点实验室
 江苏省电子学会  天线与微波专业委员会
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内容提要: This presentation will provide the participants with a novel way to understand the fundamental concepts behind modern antenna near field measurement and diagnostic techniques. Starting from basic electromagnetic principles, the underlying concepts governing simulations, designs and operations of planar near field measurements and diagnostics techniques will be reviewed. Modern measurement schemes such as plane-polar and bi-polar scanning will be highlighted. Advances in applying these techniques to millimeter-wave measurements will be reviewed. Representative measurement results of reflector and array antennas will be presented. The importance of near field diagnostic techniques will be discussed through some unique test cases.  Finally, the topic of phaseless measurement techniques and algorithms will be presented demonstrating the potential applications of these techniques in modern antenna measurements. The following topics will be presented: (a) Fundamental of EM concepts for antenna characterizations including antenna radiated fields, ideal dipole, solution of wave equations and special functions, (b) fundamentals of various near-field measurement techniques including equivalence theorem, spectral formulation and probe corrections, (c) Understanding antenna near-field diagnostic techniques including simulation models, back-projections, sampling theorems, (d) Case studies of several reflector and array antenna measurements and diagnostics, and (e) Phaseless measurements and recent advances including why phaseless measurements, phase retrieval algorithms and measured results.

 
演讲人简历:Yahya Rahmat-Samii is a Distinguished Professor, holder of the Northrop-Grumman Chair in EMs, member of the US National Academy of Eng. He was the former chairman of the EE Department at the UCLA, Before joining UCLA in 1989, he was a Senior Research Scientist at Jet Propulsion Laboratory of Caltech/NASA. Dr. Rahmat-Samii was 1995 President of IEEE AP Society, IEEE Distinguished Lecturer for 1995-1997 & 2007-2009 presenting lectures internationally. He was elected as a Fellow of IEEE in 1985 & a Fellow of IAE in 1986 and served as the Vice President of AMTA a Edmond S. Gillespie Fellow of AMTA (2007). Dr. Rahmat-Samii has authored and co-authored over 800 technical papers for journals and conferences, and has written over 25 book chapters and four books entitled, Electromagnetic Optimization by Genetic Algorithms, Electromagnetic Band Gap Structures in Antenna Engineering, and Impedance Boundary Conditions in Electromagnetics  Implanted Antennas in Medical Wireless Communications. He is also hold several patents. His research contributions cover a diverse area of electromagnetics and antennas. Dr. Rahmat-Samii has received numerous awards, including the 1992 &1995 Wheeler Best Appl. Prize Paper Award for IEEE AP Trans; 1999 Univ. of Illinois ECE Distinguished Alumni Award; AMTA’2000 Distinguished Achiev. Award; & IEEE 3rd Millennium Medal. He was the recipient of an Honorary Doctorate in Physics from the Univ.of Santiago de Compostela, Spain; & elected as a Foreign Member of the Royal Flemish Academy of Belgium for Science and the Arts (2001); he received the Technical Excellence Award from JPL(2002), the URSI Booker Gold Medal (2005), the Chen-To Tai Distinguished Educator Award of IEEE AP-S (2007), & the IEEE AP-S Distinguished Achievement Award (2009). Prof. Rahmat-Samii is the designer of the IEEE AP-S logo which is displayed on all IEEE AP-S publications

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