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Hace 5 días · 11 Apr 2024 · Yongming Li, Xikui Ma, Xuchen Wang, Sergei A. Tretyakov · Edit social preview In this paper, we present a general theory of aperiodic subwavelength arrays for controlling electromagnetic waves.
20 de mar. de 2024 · Le Hao (1), Sravan K. R. Vuyyuru (2 and 3), Sergei A. Tretyakov (3), Artan Salihu (1 and 4), Markus Rupp (1), Risto Valkonen (2) ( (1) Technische Universität Wien, (2) Nokia Bell Labs, (3) Aalto University, (4) Christian Doppler Laboratory) In this paper, we systematically study the electromagnetic (EM) and communication aspects of ...
Hace 5 días · Reconfigurable Superdirective and Superabsorptive Aperiodic Metasurfaces. Yongming Li, Xikui Ma, Xuchen Wang, Sergei A. Tretyakov. In this paper, we present a general theory of aperiodic subwavelength arrays for controlling electromagnetic waves. The considered platform is formed by an array of electrically small loaded scatterers above a ...
Hace 5 días · In this paper, we present a general theory of aperiodic subwavelength arrays for controlling electromagnetic waves. The considered platform is formed by an array of electrically small loaded scatterers above a ground plane. While the array is geometrically periodic, all the loads can be in general different, so that the distributions of currents induced by plane waves are not periodic. To ...
20 de mar. de 2024 · 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 measurements. We simulate a nearly perfect, lossless RIS, and a realistic lossy anomalous reflector (AR) in different ray tracers and analyze the large-scale fading of simple RIS-assisted links. We also compare the ...
1 de abr. de 2024 · Tretyakov International Violin Competition Announces Semi-Finalists. By The Violin Channel. September 24, 2021. 2 MIN READ. The second edition of the competition is taking place in Krasnoyarsk, Russia, from September 20 to October 1, 2021 — streamed here on The Violin Channel.
Hace 1 día · For the first time, a collection on this scale of the grand duchess’s works went under the hammer at the Moscow Auction House. The total value of the collection was estimated at 30 million rubles [$325,000 USD]. The authenticity of each work was confirmed by art historians and experts of the Tretyakov National Research Institute in Moscow.
