[SEMINAR] December 5, 2025 – Andrey Tyarin – Methods of designing and determining the characteristics of unit cells of reconfigurable intelligent surfaces

We are happy to invite you to the next talk of Moscow Telecommunication Seminar which will be held at 17.00 (MSK, UTC+03:00), on Friday, December 5, 2025.

Note: the language of the seminar is Russian.

Join the seminar online: https://telemost.yandex.ru/j/48311307231510

Title: Methods of designing and determining the characteristics of unit cells of reconfigurable intelligent surfaces

Speaker: Andrey Tyarin, MIPT, IITP RAS

Abstract: Reconfigurable Intelligent Surfaces (RISs) are a promising technology for increasing the bandwidth and the coverage area of wireless networks by controlling the electromagnetic wave reflected from the RIS. For widespread deployment of RISs into the existing and future wireless communication systems, two classes of requirements need to be considered: design features, such as low power consumption, flat and lightweight structure, low cost, and minimal reflection loss, as well as operational conditions, namely, efficient operation under any weather conditions at different angles of incidence, and polarizations of electromagnetic waves incident on the RIS in a wide frequency range. Existing approaches to RIS modeling do not consider the angle of incidence, polarization, and unit cell state simultaneously, which limits the accuracy of the analysis of RIS-aided wireless networks. Traditional RIS manufacturing technologies are proving to be expensive, while more affordable alternatives, such as additive manufacturing, haven’t yet received enough research interest. In addition, the effect of protective coatings and rain drops on RIS’s characteristics has not been studied. This talk is based on the Ph.D. thesis that proposes methods for designing and determining the characteristics of RIS unit cells while taking into account design features and operational conditions, with the goal of eliminating these gaps.

Bio: Andrey Tyarin graduated with a bachelor’s degree (2019) and a Master’s degree (2021) with honors from the Moscow Institute of Physics and Technology. He is currently getting ready to defend his PhD thesis in the area of telecommunication systems, networks and devices under the supervision of Evgeny Mikhailovich Khorov. Andrey’s research interests include reconfigurable intelligent surfaces, modeling the propagation of electromagnetic waves, semiconductor devices, and prototyping wireless communication devices.

To get more information about the seminar, please visit this page.