■ Biography of the Speaker： Leo P. Ligthart was born in Rotterdam, the Netherlands, on September 15, 1946. He received an Engineer's degree (cum laude) and a Doctor of Technology degree from Delft University of Technology in 1969 and 1985, respectively. He is Fellow of IET and IEEE. He got awards from UK-IET, IEEE MIKON conference, EuMA, Netherlands electronic and radio society (NERG). He is Honorary Member of the Delft EE student society. He received Honorary Doctorates (Honoris Causa) at Moscow State Technical University of Civil Aviation in 1999, Tomsk State University of Control Systems and Radioelectronics in 2001 and Military Technical Academy, Romania in 2010. He is academician of the Russian Academy of Transport. His principal areas of specialization include antennas and propagation, radar and remote sensing, but he has also been active in satellite, mobile and radio communications. He has published over 650 papers, various book chapters and 2 books.