From Microscopic to Macroscopic Description of Composite Thin Panels: A Roadmap for their Simulation in Time Domain
Metadatos
Mostrar el registro completo del ítemAutor
Díaz Angulo, Luis Manuel; Ruiz Cabello, Miguel; Alvarez Gonzalez, Jesus; Rubio Bretones, Amelia Consuelo; González García, SalvadorMateria
Finite difference time domain Implicit–explicit schemes Subcell models Thin-layer modeling Time domain
Fecha
2018Referencia bibliográfica
Diaz Angulo, Luis; et. al. From Microscopic to Macroscopic Description of Composite Thin Panels: A Roadmap for their Simulation in Time Domain. IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 2, pp. 660-668, Feb. 2018 [http://hdl.handle.net/10481/50234]
Patrocinador
This work was supported in part by Spanish MINECO, EU FEDER under Project TEC2013-48414-C3-01, Project TEC2016-79214- C3-3-R, and Project TEC2015-68766-REDC, in part by J. de Andalucia, Spain under Grant P12-TIC-1442, in part by Alhambra-UGRFDTD (AIRBUS DS), and in part by the CSIRC alhambra.ugr.es supercomputing center. This paper is an expanded version from the IEEE MTT-S International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications, May 17–19, 2017, Seville, Spain.Resumen
In this paper, we show a simulation strategy for
composite dispersive thin-panels, starting from their microscopic
characteristics and ending into a time-domain macroscopic
model. In a first part, we revisit different semianalytic methods
that may be used to obtain the S-parameter matrices. The
validity of them is assessed with numerical simulations and
experimental data. We also include some formulas that may be
used to tailor the shielding effectiveness of panels in a design
phase. In a second part, we present an extension to dispersive
media of a subgridding hybrid implicit–explicit algorithm finite
difference time domain (FDTD) devised by the authors to deal
with that kind of materials. The method, here presented and
applied to the FDTD method, is a robustly stable alternative
to classical impedance boundary condition techniques. For this,
a previous analytical procedure allowing to extract an equivalent
effective media from S-parameters is presented, thus making this
road map able to simulate any kind of dispersive thin layer.
A numerical validation of the algorithm is finally shown by
comparing with experimental data.