Chinmoy Saha

Chinmoy Saha received his PhD degree from University of Calcutta, India, and currently working as a full Professor in the Indian Institute of Space Science and Technology, India. He has research collaboration with several International Universities in North America and Europe. He is a senior Member of IEEE & USRI, an elected AdCom member of IEEE MTT-S (2026-2028), current chair of MTT-S SIGHT committee and region-10 coordinator of MTT-S since 2023. He is the founder and past chair of MTT-S Kerala (2019-2021) and former chair of AP-S Kerala chapter (2018-2019). He is also founder and current chair of IEEE EMC Society Kerala chapter.

Dr. Saha has received several prestigious awards which includes Teaching Award from Government of India, “IETE Prof. SN Mitra Memorial Award”, “outstaying researcher award 2025” from IEEE Kerala Section, several IEEE volunteers’ awards, and 12+ best paper awards in prestigious international conferences. His research interest includes metamaterial/ metasurface inspired systems, Wireless Power Transfer and Energy Harvesting, multi-functional antennas for wireless applications, mm-wave/THz systems and antennas & components for space applications. He has more than 250 publications including 58 journal papers in reputed journals and authored three books with Taylor & Francis, CRC Press and Cambridge University Press. He is an associate editor in IEEE Microwave Magazine and IEEE Access. He served as Editor-in-Chief for a special issue of RF and Microwave Computer Aided Engineering and currently working as editor-in-chief for an ongoing special issue of EPJ Applied Metamaterials. He has guided /currently guiding 15 Ph.D. thesis and 30+ M.Tech. thesis.

Title of the presentation:
Microwave Wireless Power Transfer: Trends, Technologies and Future Directions

Abstract:
Wireless Power Transfer (WPT) has gained immense interest in the last decade due to its vast potential applications in existing and emerging domains such as in powering appliances, gadgets, electric vehicles, and a plethora of sensors for IOT applications. Resonant inductive (or capacitive) coupling provides a promising means of WPT due to its high efficiency over short and midrange distances. However, high range WPT technology require overall system design, which includes design of suitable antennas, rectifiers, power management units, channel estimations, and most importantly design of the feedback loop between the receiver and transmitter. Recently, Time Modulated Antenna Array (TMA) or timed array, is emerged as a potential candidate for enabling versatile, multi-user heterogeneous wireless systems, with each user uniquely powered by a switching harmonic frequency. In timed array, each switch at the antenna element feed is controlled with a Pulse Width Modulated (PWM) signal, carrying the phase information of a triangular wave and a reference signal. PWM timed array architecture offers precise control of the number of radiated harmonics, independent steering of individual beams and radiated beam power levels.

This keynote talk would deal with arts and science of various WPT concepts, techniques and some recent developments by the speaker in his research group at IIST, India and RMC, Canada.