Modeling of thin dielectric structures using the finite-difference time-domain technique

Tirkas, P.A.; Demarest, K.

doi:10.1109/8.99042

Cited by 41 publications

(21 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the numerical simulation of such electromagnetic problems is receiving much attention. The finite difference time-domain (FDTD) method has been widely used in electromagnetic field numerical algorithm [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] due to its excellent characteristics such as wide applicability, ability to deal with non-uniform media and capability to acquire wideband information with one time calculation combined with Fourier transformation. The electromagnetic problem containing thin layers can be solved basically in three ways: (1) To divide the volume into small enough cells.…”

Section: Introductionmentioning

confidence: 99%

A General FDTD Algorithm Handling Thin Dispersive Layer

Wei¹,

Zhang²,

Dong³

et al. 2009

PIER B

View full text Add to dashboard Cite

Abstract-A novel general technique for treating electrically thin dispersive layer with the finite difference time domain (FDTD) method is introduced. The proposed model is based on the modifying of the node update equations to account for the layer, where the electric and magnetic flux densities are locally averaged in the FDTD grid. Then, based on the characteristics that the complex permittivity and permeability of three kinds of general dispersive medium models, i.e., Debye model, Lorentz model, Drude model, the permittivity and permeability can be formulated by rational polynomial fraction in jω; the conversion equation from frequency domain to time domain (i.e., jω replaced by ∂/∂t) and the shift operator method are then applied to obtain the constitutive relation at modified electrical points, and the time-domain recursive formulas for D and E, B and H available for FDTD computation are obtained. Several numerical examples are presented, indicating that this scheme possesses advantages such as fine generalization, EMS memory and time step saving, and good precision.Corresponding author: B. Wei (bwei@xidian.edu.cn). 244Wei et al.

show abstract

Section: Introductionmentioning

confidence: 99%

A General FDTD Algorithm Handling Thin Dispersive Layer

Wei¹,

Zhang²,

Dong³

et al. 2009

PIER B

View full text Add to dashboard Cite

show abstract

“…In Reflex-Win software, modeling results are obtained using the finite difference time domain (FDTD) method. The FDTD technique has been widely used to analyze EM phenomena (Tirkas & Demarest, 1991;Jurgens et al, 1992;Luebbers, Steich, & Kunz, 1993;Huang, 1996;Chen & Huang, 1998;Bergmann, Robertsson, & Holliger, 1998;Oguz & Gurel, 2001). This technique is used for accurate modeling near field time-domain GPR and it can also model antennas and targets with complex shapes with virtually no additional computational effort (Roberts & Daniels, 1997).…”

Section: Data Acquisition and Processingmentioning

confidence: 99%

A geophysical investigation of the Late Roman underground settlement at Aydintepe, Northeast Turkey

2008

View full text Add to dashboard Cite

The Aydintepe underground settlement in northeastern Turkey is a series of subsurface galleries carved in Eocene-aged volcanic tuff. Rescue excavations conducted by the Local Archaeological Museum of Erzurum in 1996 and 1997 uncovered a large settlement with several underground rooms linked by passages. According to the excavators, it may have been built as a hideout and shelter by the first Christians who were banished by the Romans during the 3rd century A.D. Despite its historical and touristic value, parts of the underground settlement at Aydintepe have been destroyed to make room for the construction of new buildings in the modern town. As part of a conservation strategy for this important archaeological resource, a series of ground penetrating radar (GPR) and electrical resistivity measurements were conducted along eight profiles between 2003 and 2005. GPR soundings with a 100-MHz unshielded antenna yielded reflected hyperbolic signals with high amplitude from tunnel structures. These highamplitude signals corresponded to areas of high electrical resistivity. These anomalies allow us to determine the probable locations of tunnels within the underground settlement and they provide important data that can be used to prevent future damage from modern construction.

show abstract

“…Removing this restriction leads to substantial savings in computer storage and execution time. Recently, several different methods have been proposed for efficiently modeling electrically thin material sheets in the FDTD method [9,10]. In this case, the thin material sheets technique is used to model the thin buffer layer.…”

Section: Fdtd Formulationmentioning

confidence: 99%

“…Some lumped-element diplexers with maximally flat (Butterworth) response that are suitable for LTCC fabrication have been reported [6,7]. Analytical techniques for the design of a diplexer, instead of complementary techniques to modify ordinary filters, have been proposed [8,9]. However, the fabricated results using LTCC are not reported as yet.…”

Section: Introductionmentioning

confidence: 99%

Analysis of coplanar LiNbO₃ waveguide structures applicable to electrooptic modulator with FDTD method

Lee

Byun

Kim

2003

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

Modeling of thin dielectric structures using the finite-difference time-domain technique

Cited by 41 publications

References 6 publications

A General FDTD Algorithm Handling Thin Dispersive Layer

A General FDTD Algorithm Handling Thin Dispersive Layer

A geophysical investigation of the Late Roman underground settlement at Aydintepe, Northeast Turkey

Analysis of coplanar LiNbO₃ waveguide structures applicable to electrooptic modulator with FDTD method

Contact Info

Product

Resources

About

Modeling of thin dielectric structures using the finite-difference time-domain technique

Cited by 41 publications

References 6 publications

A General FDTD Algorithm Handling Thin Dispersive Layer

A General FDTD Algorithm Handling Thin Dispersive Layer

A geophysical investigation of the Late Roman underground settlement at Aydintepe, Northeast Turkey

Analysis of coplanar LiNbO3 waveguide structures applicable to electrooptic modulator with FDTD method

Contact Info

Product

Resources

About

Analysis of coplanar LiNbO₃ waveguide structures applicable to electrooptic modulator with FDTD method