58 citations · 119 across the 9 of their papers we have counts for
9 papers
Efficient Scattering Synthesis for Beyond-Diagonal Non-Local RISs Coupled with Passive Load Networks
Sravan K. R. Vuyyuru, Francisco S. Cuesta, Viktar S. Asadchy +2
Realizing advanced functionalities with high efficiencies via reconfigurable intelligent surfaces (RISs) and reflectarrays requires configurations with strong electromagnetic non-l…
Simultaneous Angle-of-Arrival Sensing and Anomalous Deflection with Aperiodically Loaded Patch Arrays
Mostafa Movahediqomi, Sravan K. R. Vuyyuru, Grigorii Ptitcyn +4
We propose and numerically demonstrate a reconfigurable patch antenna array that enables simultaneous incident wave sensing and anomalous reflection without prior knowledge of the…
Time Interfaces in Nanoplasma-Switched Wire Media
Mikhail Sidorenko, Sergei Tretyakov, Constantin Simovski
In this work, we consider instantaneous transitions of an infinitely extended uniaxial dielectric into a wire medium (WM) of continuous infinitely long conducting wires. Due to the…
Analysis of Scalable Anomalous Reflectors through Ray Tracing and Measurements
Le Hao, Sravan K. R. Vuyyuru, Sergei A. Tretyakov +2
In this study, we elaborate on the concept of scalable anomalous reflector (AR) to analyze the angular response, frequency response, and spatial scalability of a designed AR across…
Modeling RIS from Electromagnetic Principles to Communication Systems--Part II: System-Level Simulation, Ray Tracing, and Measurement
Le Hao, Sravan K. R. Vuyyuru, Sergei A. Tretyakov +3
In this paper, we systematically study the electromagnetic (EM) and communication aspects of an RIS through EM simulations, system-level and ray-tracing simulations, and finally me…
Modeling RIS from Electromagnetic Principles to Communication Systems--Part I: Synthesis and Characterization of a Scalable Anomalous Reflector
Sravan K. R. Vuyyuru, Le Hao, Markus Rupp +2
This work aims to build connections between the electromagnetic and communication aspects of Reconfigurable Intelligent Surfaces (RIS) by proposing a methodology to combine outputs…
Efficient Synthesis of Passively Loaded Finite Arrays for Tunable Anomalous Reflection
Sravan K. R. Vuyyuru, Risto Valkonen, Sergei A. Tretyakov +1
A design methodology for planar loaded antenna arrays is proposed to synthesize a perfect anomalous reflection into an arbitrary direction by optimizing the scattering characterist…
Transmission Lines Emulating Moving Media
Joni Vehmas, Silvio Hrabar, Sergei Tretyakov
In this paper, we show how the electromagnetic phenomena in moving magnetodielectric media can be emulated using artificial composite structures at rest. In particular, we introduc…
Effective electric and magnetic properties of metasurfaces in transition from crystalline to amorphous state
M. Albooyeh, D. Morits, S. A. Tretyakov
In this paper we theoretically study electromagnetic reflection, transmission, and scattering properties of periodic and random arrays of particles which exhibit both electric-mode…