In Memoriam: Professor Joshua Le‐Wei Li

It is with great sadness that we announce that Prof. Joshua Le-Wei Li, the Editor of Radio Science, passed away on 22 May 2015. Joshua Le-Wei Li was born in Nanjing, China, in 1961. He received his BSc degree in Physics from Xuzhou Normal College (now Jiangsu Normal University), Xuzhou, China, in 1984; MEngSc degree in Electrical Engineering from China Research Institute of Radiowave Propagation, Xinxiang, China, in 1987; and PhD degree in Electrical Engineering from Monash University, Melbourne, Australia, in 1992, respectively. From November 1992 to January 2011, he was a Lecturer, Senior Lecturer, Associate Professor, Professor, and the Director of the Centre for Microwave and Radio Frequency, Department of Electrical and Computer Engineering, National University of Singapore, Singapore. From 1999 to 2004, he was a Faculty Fellow for the High Performance Computations on Engineered Systems Program of Singapore-MIT Alliance. Since 2009, he was appointed as a National Chair Professor with the University of Electronic Science and Technology of China where he served as the Founding Director of the Institute of Electromagnetics, the Director of the Centre for Space Polar Energy Microwave Power Transmission, and the Vice Chair of the University Academic Committee. Since 2011, he was also a Professor of Electrical and Computer System Engineering at Monash University (Malaysia campus). He also held a number of visiting positions at international institutes including as a Visiting Scientist at the Research Laboratory of Electronics, Massachusetts Institute of Technology, U.S. (from May to July 2002), a Visiting Professor at the University of Paris VI, France (October 2007), and an Invited Professor at the Institute for Transmission, Waves and Photonics at Swiss Federal Institute of Technology, Lausanne, Switzerland (from January to June of 2008). He was one of the most productive scientists who made significant contributions in a number of research areas including electromagnetic theory (e.g., dyadic Green's functions), computational electromagnetics (e.g., precorrected fast Fourier transform method and adaptive integral method), radio wave propagation and scattering in various media (e.g., chiral media, anisotropic media, bianisotropic media, and metamaterials), microwave propagation and scattering in tropical environment, and analysis and design of various antennas (e.g., loop and wire antennas, wideband microstrip antennas, and metamaterial-based array antennas). He developed the first software for computing spheroidal wave functions of complex arguments. Also, he formulated the Green's functions in various (a) canonical geometries (waveguides and cavities, planar multilayers, circular and elliptical cylinders of multilayers, radially multilayered spheres, and multilayered spheroids), (b) various coordinates (Cartesian, cylindrical, elliptic, spherical, and prolate and oblate spheroidal), and (c) various media or materials (isotropic, chiral, bi-isotropic, anisotropic, and bianisotropic). The results are essential for the computational electromagnetics community and fundamental for electromagnetic theory community. Due to his outstanding work on electromagnetic (EM) theory and Green's functions, he was also known as “the man of Green's functions” by researchers in the EM community. He was one of the most cited authors in the electromagnetics community. His Google h-index is 36 and i-10 index is 191, and his Google citation is 6003. He (co-)authored four books (Spheroidal Wave Functions in Electromagnetic Theory, New York, Wiley, 2001; Device Modeling in CMOS Integrated Circuits: Interconnects, Inductors and Transformers, London, Lambert Academic Publishing, 2010; Dyadic Green's Functions in Inhomogeneous Media, New York, Wiley, 2011; and Electromagnetic Theory of Complex Media, Cambridge University Press, 2011), 48 book chapters, over 370 international refereed journal papers (of which about half of these papers were published in IEEE Transactions and Letters, and the remaining in Optics Express, Applied Physics Letters, Physical Review E or B, Radio Science, IEE Proceedings, and JEWA, etc.), 49 regional refereed journal papers, and over 400 international conference papers. He was a great teacher, inspirer, supervisor, and group leader, and made significant contributions to the teaching and student supervision at National University of Singapore, Singapore, and the University of Electronic Science and Technology of China. Some of his former students or postdoctoral research fellows are now appointed as Chair Professors in internationally leading research universities in the U.S., UK, and China. Also, many other students from his group are now appointed as Managers, Group Leaders, or Chief (or Senior) Engineers or Scientists in national labs or companies around the world. He served as the Editor of Radio Science since 2012, and was an Associate Editor from 2003 to 2012. He has been a regular reviewer of many archival journals. Also, he was a Guest Editor of IEEE Transactions on Microwave Theory and Techniques in 2010 and IEICE Transactions on Electronics in 2007, an Associate Editor of International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, and International Journal of Antennas and Propagation; an Editorial Board Member of Journal of Electromagnetic Waves and Applications (JEWA), Progress In Electromagnetics Research (PIER) by EMW Publishing, International Journal of Microwave and Optical Technology, and Electromagnetics journal; and an Overseas Editorial Board Member of Chinese Journal of Radio Science, Frontiers of Electrical and Electronic Engineering in China (for selected papers from Chinese Universities by Springer), and Science China: Information Sciences. He also served as a member of various International Advisory Committee and/or Technical Program Committee of numerous international conferences or workshops. He was appointed as a member of the IEEE MTT-S Technical Committee 15 Member in 2008, IEEE AP-S Region Representative (Region 10: Asia-Pacific) in 2010, and an IEEE AP-S Distinguished Lecturer (2011–2013). He served as the Chairman of IEEE Singapore MTT/AP Joint Chapter which won the 2003 IEEE AP-S Best Chapter Award. He served as a Distinguished Lecturer for the IEEE AP Society from 2011 to 2013. He became a Fellow of the IEEE in 2005 and a Fellow of The Electromagnetics Academy in 2007. Le-Wei (Joshua) now has departed on his final voyage, and we have lost a great friend and a prolific colleague. He leaves behind his loved ones, friends, students, research associates, and colleagues to remember his legacy.

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