Efficient Method for Time-Domain Analysis of Lossy Nonuniform Multiconductor Transmission Line Driven by a Modulated Signal Using FDTD Technique

Afrooz, Kambiz; Abdipour, A.

doi:10.1109/temc.2011.2161765

Cited by 61 publications

(37 citation statements)

References 28 publications

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“…By using the precise split-step scheme, larger time steps can be employed in the transient simulation with slight phase velocity error. Compared to the conventional unconditional stable approaches (e.g., [16]), it seems that the more the sub-time-step has been selected, the larger the computational resources occupied by the proposed method. However, the novel method has the lower dispersion error, a larger time step and a coarser mesh can be used.…”

Section: Resultsmentioning

confidence: 99%

“…While the proposed algorithm needs 3 × 85 loops, where 3 is the number of sub-time-step. Therefore in the same conditions, CPU time of the proposed algorithm is almost the same as the US-FDTD method presented in [16].…”

Section: Numerical Experimentsmentioning

confidence: 87%

“…The per-unit-length parameter matrices of the MTL are given in [16]. The input signal voltage source is a 1 V rectangular pulse with rise and fall-times of 0.25 ns, a width of 1.5 ns.…”

Section: Numerical Experimentsmentioning

confidence: 99%

“…A straightforward approach called "US-FDTD" [16], which is believed to be more efficient, is adopted here for comparison. It must be noted that the spatial equations in [16] (Equations (18) and (19)) can be written like (7) and (8) in a matrix form. The special numerical package has been used for both algorithms (the proposed method and "US-FDTD").…”

Section: Numerical Experimentsmentioning

confidence: 99%

“…However, the discretization grid with an adequate temporal resolution must be chosen for the Courant-Friedrich-Levy (CFL) stability condition [15], which leads to expensive simulation cost. In an attempt to improve the FDTD computation efficiency, two main alternatives have been proposed: the first one is to incorporate an implicit difference scheme into the basic algorithm [16], and the second one is to use a semidiscrete model based on a time-step integration method [17,18]. Both approaches can eliminate the CFL limitations.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

An Unconditional Stable 1d-FDTD Method for Modeling Transmission Lines Based on Precise Split-Step Scheme

Wang¹,

Liu²,

Qin³

2013

PIER

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Abstract-This paper presented a novel unconditional stable FDTD (US-FDTD) algorithm for solving the transient response of uniform or nonuniform multiconductor transmission line with arbitrary coupling status. Analytical proof of unconditional stability and detailed analysis of numerical dispersion are presented. The precise split-time-step scheme has been introduced to eliminate the restriction of the CourantFriedrich-Levy (CFL) condition. Compared to the conventional US-FDTD methods, the proposed approach generally achieves lower phase velocity error for coarse temporal resolution. So larger time scales can be chosen for the transient simulation to achieve accurate results efficiently. Several examples of coupled uniform and nonuniform lines are presented to demonstrate the accuracy, stability, and efficiency of the proposed model.

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Section: Resultsmentioning

confidence: 99%

Section: Numerical Experimentsmentioning

confidence: 87%

“…The per-unit-length parameter matrices of the MTL are given in [16]. The input signal voltage source is a 1 V rectangular pulse with rise and fall-times of 0.25 ns, a width of 1.5 ns.…”

Section: Numerical Experimentsmentioning

confidence: 99%

Section: Numerical Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

An Unconditional Stable 1d-FDTD Method for Modeling Transmission Lines Based on Precise Split-Step Scheme

Wang¹,

Liu²,

Qin³

2013

PIER

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Nonuniform transmission lines analysis by meshless point interpolation methods

Benkhaoua

Benhabiles

Riabi

2015

Int J Numerical Modelling

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Three meshless time domain methods are investigated for the solution of the telegrapher's equation applied to the nonuniform transmission line. The approach is based on a combination of the point interpolation methods and the leapfrog algorithm. The accuracy of the proposed methods is confronted with both the Finite-Difference Time-Domain (FDTD) and the wavelet expansion methods. The strong stability, the flexibility, and the fast convergence of the computing scheme are set in evidence from the computational results for two examples: the linear tapered transmission line and the transmission line balun.

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EMI effect simulation of braided cable network using a hybrid FDTD method

Luo

Wang

Xia

et al. 2017

Int J Numerical Modelling

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This paper proposes a novel time domain numerical scheme based on a modified finite‐difference time‐domain (FDTD) method for electromagnetic interference (EMI) analysis of braided cable networks. In this method, a reasonable physical boundary condition is constructed by a transfer impedance model, while the spatial fields can be applied by way of adding incentive items into the transmission line equations. Besides, the full‐wave finite‐difference time‐domain(2, 4) method with thin wire model, transmission line equation and the modified nodal analysis are combined in order to solve cable‐interconnect line network transient responses in the problem of field‐line‐circuit union simulation. This method has good agreements with HSPICE. In addition, the method is used successfully in analyzing a cable‐interconnect network with different shielding characteristics.

show abstract

Efficient Method for Time-Domain Analysis of Lossy Nonuniform Multiconductor Transmission Line Driven by a Modulated Signal Using FDTD Technique

Cited by 61 publications

References 28 publications

An Unconditional Stable 1d-FDTD Method for Modeling Transmission Lines Based on Precise Split-Step Scheme

An Unconditional Stable 1d-FDTD Method for Modeling Transmission Lines Based on Precise Split-Step Scheme

Nonuniform transmission lines analysis by meshless point interpolation methods

EMI effect simulation of braided cable network using a hybrid FDTD method

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