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Electromagnetic Wave Diffraction on a Metal Diaphragm of Finite Thickness
AbstractThe two-dimensional problem of the diffraction of an electromagnetic wave by a metal diaphragm of finite thickness in an infinite rectangular...
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On Resonant Frequencies in the Diffraction Problems of Electromagnetic Waves by the Diaphragm in a Semi-Infinite Waveguide
AbstractResonant properties of semi-infinite place and rectangular waveguides in the presence of a thin conductive diaphragm placed near the...
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On the Resonant Passage of Electromagnetic Wave through Waveguide with Diaphragms
AbstractA rectangular resonator with holes embedded in two plane-transverse resonant diaphragms is built in a plane infinite waveguide. The problem...
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On the acoustic trapped modes and their symmetry properties in a circular cylindrical waveguide with a cavity
The paper is concerned with a partly analytical, partly numerical study of acoustic trapped modes in a cylindrical cavity (expansion chamber), placed...
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Finite Element Method and Partial Area Method in One Diffraction Problem
AbstractIn this work, the boundary value problem for the Helmholtz equation in a half-band, corresponding to the physical problem of diffraction of...
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On Resonant Effects in the Semi-Infinite Waveguides with Barriers
The problems of electromagnetic wave diffraction by thin conductive barriers in a semi-infinite parallel-plate waveguide are reduced to infinite sets...
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Three-Dimensional Model of a Focusing and Radiating Antenna Array
We consider a three-dimensional antenna system modeled by a linear array, which focuses radiation in the far-field zone. The system is formed by...
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Solvability of the Integro-Differential Equation in the Problem of Wave Diffraction on a Junction of Rectangular Waveguides
AbstractWe study the problem of electromagnetic wave diffraction on a junction of two rectangular waveguides. The boundary value problem for the...
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Novel mode-coupling vibrations of AlN thin film bulk acoustic resonator operating with thickness-extensional mode
The dispersion curves of bulk waves propagating in both AlN and ZnO film bulk acoustic resonators (FBARs) are presented to illustrate the mode flip...
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Synthesis Problem and Mathematical Modeling of Multilayered Absorbing Coating
The paper is devoted to application of the waveguide method in mathematical modeling of multilayered radar absorbing coating. Mathematically, it...
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Solution to the Inverse Problem of Reconstructing Permittivity of an \(n\) -Sectional Diaphragm in a Rectangular Waveguide
We have developed a numerical-analytical method of solution to the inverse problem of reconstructing permittivities of...
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Permittivity Reconstruction of Layered Dielectrics in a Rectangular Waveguide from the Transmission Coefficients at Different Frequencies
Determination of electromagnetic parameters of dielectric bodies of complicated structure is an urgent problem. However, as a rule, these parameters...
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The interaction of electron beams and electromagnetic fields in relativistic Cerenkov generators
A method of numerical analysis of linear and nonlinear nonstationary processes in relativistic Cerenkov generators based on periodic superdimensional...
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EGO shape optimization of horn-loaded loudspeakers
Horn-loaded loudspeakers increase the efficiency and control the spatial distribution of sound radiated from the horn mouth. They are often used as...
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Application of the matrix riemann problem to the study of excitation of natural waves in an acoustic waveguide by a piston radiator
Stationary excitation of natural waves in a flat acoustic waveguide with absolutely soft lateral walls by a piston radiator is investigated. In the...