Wave Propagation in Periodic Structures
Modelling wave propagation in two dimensional structures using a wave/finite element technique
... analyse wave propagation in periodic ...“periodic structures” indicates structures which exhibit characteristics that repeat periodically in one, two or ...a periodic ...
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Wave propagation in pressurised composite structures with frequency band gap behaviour
... Introduction Periodic structures consist of infinite assembly of identical elements, usually called cells, joined in an iden- tical ...These structures, also called banded structures, have ...
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Wave sensitivity analysis for periodic and arbitrarily complex composite structures
... In this paper a continuum-discrete approach for efficiently computing the sensitivity of the wave propagation data for periodic structures is presented. The considered structure can be of ...
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Multi scale wave propagation modelling for two dimensional periodic textile composites
... ultrasonic wave propagation analysis in highly anisotropic periodic structures such as textile ...composite structures calculations are wrong and that mesoscale modelling is ...guided ...
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Wave propagation and interaction with damage in periodic composite structures
... Application of the transfer matrix method has mainly been applied to obtain the dynamic response of various structural systems such as spring-mass structure [71], beam-type periodic stru[r] ...
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Wave propagation in metamaterial structures and retrieval of homogenization parameters
... of periodic materials and structures, to be able to practically incorporate them in larger systems, their overall equivalents have to be ...full wave analysis of the system is necessary. Similarly, ...
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Finite-Difference Time-Domain Simulation of Light Propagation in 2D Periodic and Quasi-Periodic Photonic Structures
... The mode of energy coupling of two closely positioned planar waveguides is demonstrated in Fig. 1. This task has been considered for the case, when the wavelength of incident electromagnetic wave λ = 1μm, pulse ...
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Wave Packets Scattered by Non-Periodic Bragg-Type Layered Structures
... superluminal propagation, the form of informative packets (signals) is strongly ...signal propagation parameters is incorrect in the vicinity of such values of frequency or angle of ...
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Impedance Matching for Discrete, Periodic Media and Application to Two-Scale Wave Propagation Models.
... Classically, wave propagation studies focus on flow of energy in a natural, often homogenous media, ...of propagation is no longer determined by nature but can be artificially synthesized leading to ...
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Simulation of Acoustic Wave Propagation in 3-D Sonic Crystals based on Triply Periodic Minimal Surfaces
... these structures in the context of the space for which they are intended, which is hoped will enable a useful subjective analysis of a structure prior to its ...acoustic propagation through doubly ...
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Wave interactions in periodic structures and periodic dielectric waveguides
... This phase matching can occur between modes of the same kind of wave (ordinary Bragg reflection can be described this way) as well as interaction between differe[r] ...
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Semiclassical methods for high frequency wave propagation in periodic media
... a function in C pR d q, periodic with respect to the lattice Γ : r0, 1q d . U pxq will also be assumed to be a smooth function in C pR d q. Direct numerical approximation to equation (1.4) such as finite ...
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Pedestrian Analysis of Harmonic Plane Wave Propagation in 1D Periodic Media
... The propagation of TE, TM harmonic plane waves impinging on a periodic multilayer film made of a stack of slabs with the same thickness but with alternate constant permittivity is ...the wave equa- ...
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Wave Propagation and Scour Failure of Coastal Structures due to Tsunamis
... 163 CHAPTER 7 Conclusions and Recommendations The main aim of the thesis is to perform extensive small-scale laboratory experiments and numerical simulation to elucidate further the scour failure of coastal dikes due to ...
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Wave Propagation in RH/LH Periodic Lumped Circuits Using Iterative Method WCIP
... the computation of voltage as well as current in all nodes of the circuit. Regular and irregular shapes of a meta-material medium are selected as examples to show how to control the channeling of waves, which can be of ...
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Nonlinear Propagation in Periodic Microstructures
... E fficient ultrafast sw itching in no n lin ear w a v eg u id e arrays requires a m a te r ia l w ith lo w lin e a r an d n o n lin e a r a b s o r p t io n lo sse s. T h e w av eg u id e's structure m ust have a good ...
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RADIO WAVE PROPAGATION
... • Reflection: similar to its optical counterpart as wave enters in contact with a surface. Long wavelengths, from 80 meters long and above don't practically "see" small obstacles like cars, trees or buildings. ...
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Elastic Wave Propagation
... of wave propa- gation in elastic materials in a form suitable for a one-semester course at the advanced undergraduate or graduate level, for self-study, or as a supplement in courses that include material on ...
385
Wave propagation. S.M.Lea
... An electromagnetic wave signal may be represented by a function of space and time.. u(x,t) where u might be one component of the electric field, for example..[r] ...
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