A tutorial on the basics of time-varying electromagnetic systems and circuits: Historic overview and basic concepts of time-modulation

G Ptitcyn, MS Mirmoosa, A Sotoodehfar… - IEEE Antennas and …, 2023 - ieeexplore.ieee.org
During the last decade, possibilities to realize new phenomena and create new applications
by varying system properties in time have gained increasing attention in many research …

Spacetime metamaterials—Part II: Theory and applications

C Caloz, ZL Deck-Leger - IEEE Transactions on Antennas and …, 2019 - ieeexplore.ieee.org
The overall article presents the authors' vision of the emerging field of spacetime
metamaterials, and related systems, in a cohesive and pedagogical perspective …

Phase-induced frequency conversion and Doppler effect with time-modulated metasurfaces

D Ramaccia, DL Sounas, A Alu… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Metasurfaces consisting of electrically thin and densely packed planar arrays of
subwavelength elements enable an unprecedented control of the im**ing electromagnetic …

Dynamically realizing arbitrary multi-bit programmable phases using a 2-bit time-domain coding metasurface

L Zhang, ZX Wang, RW Shao, JL Shen… - … on Antennas and …, 2019 - ieeexplore.ieee.org
Recently, digital coding metasurfaces have attracted significant attention due to their
capability to dynamically control electromagnetic waves in programmable ways. When the …

Space-time modulation: Principles and applications

S Taravati, AA Kishk - IEEE microwave magazine, 2020 - ieeexplore.ieee.org
The ever-increasing demand for high-datarate wireless systems has led to a crowded
electromagnetic (EM) spectrum. This demand has successively spurred the development of …

Highly sensitive dual-band terahertz metamaterial absorber for biomedical applications: simulation and experiment

YI Abdulkarim, O Altintas, AS Karim, HN Awl… - ACS …, 2022 - ACS Publications
In this paper, a terahertz (THz) metamaterial absorber (MTMA), incorporating surface
Pythagorean tree fractal resonators, was designed and experimentally fabricated on the …

Generalized space-time-periodic diffraction gratings: Theory and applications

S Taravati, GV Eleftheriades - Physical Review Applied, 2019 - APS
This paper studies the theory and applications of the diffraction of electromagnetic waves by
space-time-periodic (STP) diffraction gratings. We show that, in contrast with conventional …

Intelligence enabled by 2D metastructures in antennas and wireless propagation systems

M Barbuto, Z Hamzavi-Zarghani… - IEEE Open Journal …, 2021 - ieeexplore.ieee.org
The development of the next generation of wireless systems is bringing renewed attention to
the physical layer of the communication link. Indeed, the new low-latency requirements …

Novel metamaterials-based hypersensitized liquid sensor integrating omega-shaped resonator with microstrip transmission line

YI Abdulkarim, L Deng, M Karaaslan, O Altıntaş… - Sensors, 2020 - mdpi.com
In this paper, a new metamaterials-based hypersensitized liquid sensor integrating omega-
shaped resonator with microstrip transmission line is proposed. Microwave transmission …

Four-dimensional wave transformations by space-time metasurfaces

S Taravati, GV Eleftheriades - arxiv preprint arxiv:2011.08423, 2020 - arxiv.org
Static metasurfaces have shown to be prominent compact structures for reciprocal and
frequency-invariant transformation of electromagnetic waves in space. However …