Miniaturized Slot-loaded Mushroom EBG Cell for MBAN and Wi-Fi Bands

An analysis of internal waves arising in a two-layer fluid during an explosive eruption of an underwater volcano is performed. Processes occurring in the near zone are parameterized by the initial source in the form of a displacement of the water column, as proposed by Le Méhaute (Mehaute, Adv Hydrosci 7:1–79, 1971). Then the linear ...

Added: January 13, 2025

Adaptation of the Parameterization of the Nonlinear Energy Transfer for Short Fetch Conditions in the WAVEWATCH III Wave Prediction Model

Baydakov G., Dosaev A., Daniil S. et al., Izvestia, Atmospheric and Oceanic Physic 2020 Vol. 56 No. 2 P. 191–199

The parameterization of the nonlinear energy transfer called Discrete Interaction Approximation (DIA) is optimized in the WAVEWATCH III wave model by the criterion of minimizing deviations of model predictions from the data of field measurements. Short fetches are considered for which the wind-input source function had been previously adjusted. The results of the numerical simulation ...

Added: December 10, 2024

Computer Model of a Frequency-Selective Surface on Mushroom-Shaped Metamaterial

Yelizarov (Elizarov) A. A., Nazarov I., Skuridin A. et al., , in: SYNCHROINFO 2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications.: IEEE, 2020. P. 1–4.

This paper presents a computer model of a FSS based on mushroom-shaped metamaterial. The model is based on the calculation of equivalent distributed inductance and distributed capacitance of the unit cell of the surface according to its geometric dimensions. The computer model is realized as the “META” program based on MathCAD ver.15 software and provides ...

Added: August 20, 2020

Enhanced third-harmonic generation via s- and p-polarized optical surface modes of 1D photonic crystal structure

Konopsky V., Melnikov A., Alieva E. et al., Journal of the Optical Society of America B: Optical Physics 2019 Vol. 36 No. 10 P. 2871–2875

Generation of third-harmonic radiation, visible to the naked eye as a collimated green beam, is obtained via femtosecond excitation of the optical surface modes (SMs) propagating along a one-dimensional (1D) photonic crystal (PC) for s- and p-polarizations separately. For both polarizations, the PC SMs exist at the fundamental and third-harmonic frequencies, which allows efficient nonlinear ...

Added: November 29, 2019