Results 11 to 20 of about 203,143 (312)
Accelerated dispersion curve calculations for periodic vibro-acoustic structures
Frontiers in Mechanical Engineering, 2022 Over the years, metamaterials have shown their potential in a wide range of different disciplines, e.g. optics, electromagnetics, dynamics etc. Metamaterials are, often periodic, engineered structures made of conventional materials but which exhibit ...
Vanessa Cool +9 more
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Wave Propagation in Periodic Metallic Structures with Equilateral Triangular Holes
Applied Sciences, 2020 This paper studies wave propagation in a periodic parallel-plate waveguide with equilateral triangular holes. A mode-matching method is implemented to analyze the dispersion diagram of the structure possessing glide and mirror symmetries. Both structures
Antonio Alex-Amor +6 more
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IEEE Access, 2020 In this paper, we explore the excitation of magnetic current surface waves in truncated periodic arrays of slots in a conducting screen. A specialized Method of Moments (MoM) implementation is presented, which makes it possible to efficiently solve the ...
Miguel Camacho +3 more
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Self–imaging effect in multimode waveguides with longitudinal periodicity [PDF]
Journal of the European Optical Society-Rapid Publications, 2009 This paper deals with the self-imaging effect in multimode waveguides. Analogies and differences to the free-space case are shown. The fields in multimode waveguides are studied.
Helfert Stefan F. +2 more
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Locally periodic unfolding method and two-scale convergence on surfaces of locally periodic microstructures [PDF]
, 2015 In this paper we generalize the periodic unfolding method and the notion of two-scale convergence on surfaces of periodic microstructures to locally-periodic situations.
Ptashnyk, Mariya +2 more
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Band gap enhancement in periodic frames using hierarchical structures [PDF]
, 2021 The quest for novel designs for lightweight phononic crystals and elastic metamaterials with wide low-frequency band gaps has proven to be a significant challenge in recent years.
Miniaci M. +3 more
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Low-Profile High-Gain and Wide-Angle Beam Scanning Phased Transmitarray Antennas
IEEE Access, 2020 Combining the inherent multiple beam capabilities of transmitarray antennas (TAAs) and the flexible fields launched by phased array antennas (PAAs), PAA-fed TAAs are proposed in this paper for high-gain and wide-angle beam scanning in millimeter-wave ...
Peng-Yu Feng +3 more
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2-D periodic structures. A numerical study [PDF]
PSU Research Review, 2018 Purpose - Within the context of 2D square lattices, searching for the existence of band gaps assumes a great interest owing to many possible fields of application: from energy absorption devices to noise and vibration controllers, as well as advanced ...
Giuseppe Rocchetta, Geminiano Mancusi
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Photonics, 2021 An experimental study is carried out on the diffraction and angular selectivity properties of gratings for a wide range of angles of incidence in three-dimensional space.
Nadezhda Vorzobova, Pavel Sokolov
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Periodic microstructures for large area applications generated by holography
, 2022 S.108-115The availability of periodic surface-relief structures with grating constants from 200 nm to 100 microns on large areas leads to a wide field of applications.
Gombert, Andreas +7 more
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