Overview

This book focuses on performance enhancement of printed antennas using frequency selective surfaces (FSS) technology. The growing demand of stealth technology in strategic areas requires high-performance low-RCS (radar cross section) antennas. Such requirements may be accomplished by incorporating FSS into the antenna structure either in its ground plane or as the superstrate, due to the filter characteristics of FSS structure. In view of this, a novel approach based on FSS technology is presented in this book to enhance the performance of printed antennas including out-of-band structural RCS reduction. In this endeavor, the EM design of microstrip patch antennas (MPA) loaded with FSS-based (i) high impedance surface (HIS) ground plane, and (ii) the superstrates are discussed in detail. The EM analysis of proposed FSS-based antenna structures have been carried out using transmission line analogy, in combination with the reciprocity theorem. Further, various types of novel FSS structures are considered in designing the HIS ground plane and superstrate for enhancing the MPA bandwidth and directivity. The EM design and performance analyses of FSS-based antennas are explained here with the appropriate expressions and illustrations.

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9789812877741

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Dr. Shiv Narayan is with the Centre for Electromagnetics of CSIR-National Aerospace Laboratories (CSIR-NAL), Bangalore, India as Scientist, since 2008. He received his Ph.D. in Electronics Engineering from Indian Institute of Technology, Banaras Hindu University (IIT-BHU), Varanasi, India in 2006. He held the position of Scientist B between 2007 and 2008, at SAMEER (Society for Applied Microwave Electronics Engineering and Research), Kolkata, India. His research interests are broadly in the field of electromagnetics applications; these include frequency selective surfaces (FSS), metamaterials, numerical methods in electromagnetics, EM material characterization, and antennas. Dr Shiv is the author/ co-author of over 40 technical documents including peer reviewed journal and conference papers. Ms. Sangeetha B. obtained her BE (ECE) degree from Visvesvaraya Technological University, Karnataka, India. She is currently a Project Engineer with the Centre for Electromagnetics of CSIR-National Aerospace Laboratories (CSIR-NAL), Bangalore, India where she works in the areas of FSS, metamaterials, and microstrip antennas. Dr. Rakesh Mohan Jha is currently a Chief Scientist & Head, Centre for Electromagnetics, CSIR-National Aerospace Laboratories, Bangalore. Dr. Jha obtained a dual degree in BE (Hons.) EEE and MSc (Hons.) Physics from BITS, Pilani (Raj.) India, in 1982. He obtained his Ph.D. (Engg.) degree from Department of Aerospace Engineerin g of Indian Institute of Science, Bangalore in 1989, in the area of computational electromagnetics for aerospace applications. Dr. Jha was a SERC (UK) Visiting Post-Doctoral Research Fellow at University of Oxford, Department of Engineering Science in 1991. He worked as an Alexander von Humboldt Fellow at the Institute for High-Frequency Techniques and Electronics of the University of Karlsruhe, Germany (1992-1993, 1997). He was awarded the Sir C.V. Raman Award for Aerospace Engineering fo r the Year 1999. Dr. Jha was elected Fellow of INAE in 2010, for his contributions to the EM Applications to Aerospace Engineering. He is also the Fellow of IETE and Distinguished Fellow of ICCES. Dr. Jha has authored or co-authored several books, and more than five hundred scientific research papers and technical reports.

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