Dr Runa Kumari is an Assistant Professor in the Department of Electrical and Electronics Engineering, BITS Pilani Hyderabad Campus. She has done her M.Tech. and PhD from National Institute of Science and Technology (NIST), Odisha and National Institute of Technology (NIT), Rourkela in 2008 and 2014 respectively. Her areas of interest are primarily focused on antenna research, design and applications, and she has authored 28 research publications in reputed journals and conference proceedings.Dr. Balamati Choudhury is a scientist at the Centre for Electromagnetics of the CSIR-National Aerospace Laboratories, Bangalore, India. She received her M.Tech. (ECE) degree from the National Institute of Science and Technology (NIST), India and PhD (Eng.) degree in Microwave Engineering from Biju Patnaik University of Technology (BPUT), India in 2013. From 2006–2008, she was a senior lecturer at the Department of Electronics and Communication at the NIST, Orissa, India. Her research and teaching interests are in the domain of soft-computing techniques in electromagnetic design and optimization, computational electromagnetics for aerospace applications, metamaterial design applications, radio frequency (RF), and microwaves. She has contributed to a number of projects, including the development of ray tracing techniques for RF analysis of propagation in an indoor environment, low radar cross section (RCS) design, phased arrays and adaptive arrays, and conformal antennas. She was also the recipient of the CSIR-NAL Young Scientist Award for the year 2013–2014 for her contribution in the area of computational electromagnetics for aerospace applications. Dr. Balamati has authored or co-authored over 140 scientific research papers and technical reports, five SpringerBriefs and three book chapters as well as a book entitled: Soft Computing in Electromagnetics: Methods and Applications. Dr. Balamati is also an assistant professor of the Academy of Scientific and Innovative Research (AcSIR), New Delhi.

• Chapter 1: Multiscale modelling of Green’s function.- Chapter 2: Multiscale Simulation of Metamaterials.- Chapter 3: Multilayer optimization of radar absorbing Materials.- Chapter 4: Green function approach on solving different problems.