Dr. Shiban K Koul is currently an honorary professor at the Indian Institute of Technology, Delhi. His research interests include RF MEMS, high frequency wireless communication, microwave engineering, microwave passive and active circuits, device modelling, millimetre and sub-millimetre wave IC design, body area networks, flexible and wearable electronics, medical applications of sub-terahertz waves, EMI/EMC suppression techniques and reconfigurable microwave circuits including miniaturized antennas. He is a Life Fellow of IEEE and Fellow of INAE and IETE. He is recipient of numerous awards including IEEE MTT Society Distinguished Educator Award (2014), Teaching Excellence Award (2012) from IIT Delhi, Lifetime Achievement Award-2023 from the IETE, India and Lifetime Achievement Award-2024 from Broadcast Society of India.Dr. Somia Sharma received her B.Tech. degree in Electronics and Communication Engineering in the year 2011 from Gautam Budh Technical University. She received M.Tech. degree in RF & Microwave Engineering from Netaji Subhas University of Technology (NSUT) East Campus, formerly known as Ambedkar Institute of Advanced Communication Technologies and Research (AIACTR), New Delhi, in 2013. She worked as an assistant professor in Krishna Institute of Engineering and Technology, Ghaziabad, from 2013 to 2017. She joined Centre for applied Research in Electronics, IIT Delhi, in January 2018 and defended her thesis in August 2023. She served as a guest faculty in Jawaharlal Nehru University, New Delhi. She is currently working as Post Doctoral fellow at National Taiwan University, Taiwan since July 2024. Her research interests include spoof surface plasmon polariton, frequency scanning antenna, tunable circuits and textile antenna.

• Chapter 1. Introduction to Spoof Surface Plasmon Polariton.- Chapter 2. Transition from Conventional Transmission line to SSPP.- Chapter 3. Filter Design Using Spoof Surface Plasmon Polariton.- Chapter 4. Tunable Filter Design Using Spoof Surface Plasmon Polariton.- Chapter 5. Frequency Scanning Antennas using Spoof Surface Plasmon Polariton.- Chapter 6. End Fire Antenna using Spoof Surface Plasmon Polariton.- Chapter 7. Beam Steering Antenna using Spoof Surface Plasmon Polariton.- Chapter 8. Spoof Surface Plasmon Polariton for Biomedical Applications.- Chapter 9. Flexible or Textile Circuits using Spoof Surface Plasmon Polariton.