Prof. Mykhaylo Andriychuk obtained an M.Sc. degree in computational mathematics from the Lviv National University, a Ph.D. degree in the application of computational techniques from the Kyiv National University, and a D.Sc. degree in mathematical modeling from the Lviv Polytechnic National University in 1976, 1987, and 2015, respectively. He is now with the Pidstryhach Institute for Applied Problems of Mechanics and Mathematics (IAPMM), Lviv, Ukraine. Currently, he is the Head of Department of the Numerical Methods in Mathematical Physics at the IAPMM. His professional performance includes more than 180 papers in scientific journals and international conference proceedings, which concern diffraction and antenna synthesis theory, optimization methods, and nonlinear integral and matrix equations. He is the author of three monographs related to antenna theory. IEEE M’95, SM’03.