Project topic: Design and analysis of spatio-temporal modulation based nonreciprocal filters, antennas, and metasurfaces using FDTD
Project Description: Non-magnetic non-reciprocal electronic devices are advancing rapidly, leveraging spatiotemporal modulation techniques for compact and efficient designs. Our project focuses on designing and analyzing non-reciprocal filters, antennas, and metasurfaces, disrupting reciprocity between transmission and reception. Through tailored Finite-difference Time-domain (FDTD) simulations, we aim to enhance modeling capabilities for these devices, offering practical solutions for communication, radar technology, and sensing challenges.
Project topic: On-Air RF Mixing and Spoofing of Radars using Space-Time Engineered Reflective and Transmissive Metasurfaces
Project Description: In this proposal, our focus is on the fascinating realm of RF mixing and spoofing of radars using space-time engineered reflective and transmissive metasurfaces. We aim to explore the opportunities provided by artificial non-reciprocity and frequency shifting induced by time-varying metamaterials and metasurfaces to exert control over the Doppler effect induced by motion. By harnessing the unique properties of these engineered structures, we aim to develop innovative techniques that can effectively hide targets from radar detection. The manipulation of electromagnetic waves, including their frequency, polarization, and propagation direction, holds tremendous potential for enhancing stealth capabilities, protecting critical infrastructure, and advancing radar technology. Our research seeks to delve into the fascinating world of space-time engineered metasurfaces and their ability to confuse radar systems to manipulate the target’s actual location.