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Kaijun Song, Lele Fang and Yedi Zhou
In this paper, a novel kind of mode composite transmission line (MC-TL) is proposed, and a dual-band power divider with a large frequency ratio using this novel MC-TL for 5G communication systems was developed. The proposed MC-TL was developed using spoo...
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Denis V. Makarov, Pavel S. Petrov and Michael Yu. Uleysky
The problem of sound propagation in a shallow sea with a rough sea bottom is considered. A random matrix approach for studying sound scattering by the water?bottom interface inhomogeneities is developed. This approach is based on the construction of a st...
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Dozyslav B. Kuryliak and Oleksiy M. Sharabura
The problem of axially symmetric TM-wave diffraction from a bicone conjoined with an open-ended conical cavity is analysed rigorously. The scatterer is formed by the perfectly conducting semi-infinite and truncated semi-infinite conical surfaces; the sph...
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Mikhail Kazak, Konstantin Koshel and Pavel Petrov
A generalized form of the matrix-invariant imbedding method was developed to solve boundary-value problems for coupled systems of Helmholtz-type equations. Within this approach, a boundary-value problem solution can be obtained by solving evolutionary fi...
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Andrey Lunkov, Danila Sidorov and Valery Petnikov
Three-Dimensional (3-D) sound propagation in a shallow-water waveguide with a constant depth and inhomogeneous bottom is studied through numerical simulations. As a model of inhomogeneity, a transitional region between an acoustically soft and hard botto...
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Wei Chen, Yan Xu, Yang Gao, Lanjing Ji, Xibin Wang, Xiaoqiang Sun and Daming Zhang
A broadband polarization-insensitive graphene modulator has been proposed. The dual built-in orthogonal slots waveguide allows polarization independence for the transverse electric (TE) mode and the transverse magnetic (TM) mode. Due to the introduction ...
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Mojgan Mirzaei Hotkani, Jean-Francois Bousquet, Seyed Alireza Seyedin, Bruce Martin and Ehsan Malekshahi
In this research, a new application using broadband ship noise as a source-of-opportunity to estimate the scattering field from the underwater targets is reported. For this purpose, a field trial was conducted in collaboration with JASCO Applied Sciences...
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Yuan Yao, Chao Sun and Xionghou Liu
When a hydrophone is deployed under the critical depth in deep ocean, the interference pattern will be complex and variable. The waveguide invariant is no longer constant and is treated as a distribution. The interference pattern is impacted by refracted...
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Ningliang Liu, Chizhu Ding, Qing Liao and Shaolin Ke
We study the plasmonic second-order topological modes in nanowire waveguides which are covered by monolayer graphene. The waveguide arrays are arranged in the kagome lattice. In a triangle-shaped lattice, the topological modes are localized at the corner...
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Masaru Onoda
This study aims to present a theoretical investigation of a feasible electromagnetic wavepacket with toroidal-type dual vortices. The paper begins with a discussion on geometric phases and angular momenta of electromagnetic vortices in free space and per...
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