This book presents the detailed analytical formulation for the RCS of parallel-fed linear dipole array in the presence of mutual coupling. The radar cross section (RCS) of an object represents its electromagnetic (EM) scattering properties for a given incident wave. The analysis of scattered field is critical in military and defence arenas, especially while designing low-observable platforms. It is well-known that the presence of an antenna/array on the target influences its echo area significantly. The primary cause for such scattering of the incident signals is reflection that occurs within the antenna aperture and its feed network. In this book, the RCS estimation is done based on the signal path within the antenna system. The scattered field is expressed in terms of array design parameters including the reflection and transmission coefficients. The computed results show the variation in the RCS pattern with and without mutual coupling. The effect of finite dipole-length, inter-element spacing, scan angle, array configuration, amplitude distribution and terminating load impedance on the RCS pattern is studied. It is shown that the array RCS can be controlled by choosing optimum design parameters, including terminating impedance and geometric configuration. This book explains each step of the RCS estimation and analysis of dipole array with detailed schematics, tables and illustrations. Moreover, it includes parametric analysis of RCS estimation and control. This book provides an insight into the phenomenon of scattering within the phased array system.

A detailed analytical description of EM scattering by a parallel-fed dipole phased array with mutual coupling effect Explains each step of the RCS estimation and analysis of dipole array with detailed schematics, tables and colored illustrations Includes parametric analysis of RCS estimation and control Helps reader to understand the phenomenon of the scattering within the phased array system Includes supplementary material: sn.pub/extras

Autorentext

Hema Singh is currently working as Principal Scientist in Centre for Electromagnetics of CSIR-National Aerospace Laboratories (NAL), Bangalore, India. Before NAL, she was Lecturer in EEE, BITS, Pilani, India during 2001-2004. She obtained her Ph.D. degree in Electronics Engineering from IIT-BHU, Varanasi India in 2000. Her active area of research is Computational Electromagnetics for Aerospace Applications. More specifically, the topics she has contributed to are GTD/UTD, EM analysis of propagation in an indoor environment, Phased Arrays, Conformal Antennas, Radar Cross Section (RCS) Studies including Active RCS Reduction. She has received the Best Woman Scientist Award at CSIR-NAL, Bangalore for period of 2007-2008 for her contribution in area of phased antenna array, adaptive arrays, and active RCS reduction. Dr. Singh has co-authored nine books, one book chapter, and over 170 scientific research papers and technical reports. Mausumi Dutta obtained M.Tech. in RF & Microwave Engineering from RV College of Engineering, Visvesvaraya Technological University Bangalore. She obtained her B.Tech. (ECE) degree in 2012 from ICFAI University, Tripura. She has worked on radar cross section based studies, and probe suppression in phased arrays. Neethu P.S. obtained B.Tech. (ECE) and M.Tech. in Communication Engineering from University of Calicut, Kerela, India. She is a Project Scientist at the Centre for Electromagnetics (CEM) of CSIR-National Aerospace Laboratories, Bangalore where she works on probe suppression in phased arrays on planar and non-planar surfaces, and RCS studies for aerospace vehicles.

Inhalt
Introduction.- Formulation for the RCS of Parallel-Fed Dipole Antenna Array.- Simulation Results.- Conclusion.