An Enhanced FDTD Model for Complex Lumped Circuits

Xiao, Shaoqiu; Wang, Bing‐Zhong; Du, Ping; Shao, Zhang

doi:10.2528/pier07073003

Cited by 13 publications

(8 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some enhanced FDTD methods have been proposed [12][13][14][15][16][17][18]. However, the conventional FDTD method is an explicit method, and the time step size is constrained by the CourantFriedrichs-Lewy (CFL) condition [19], which affects its computational efficiency when fine meshes are required.…”

Section: Introductionmentioning

confidence: 99%

Reduction of Numerical Dispersion of the Six-Stages Split-Step Unconditionally-Stable FDTD Method With Controlling Parameters

Kong¹,

Chu²

2012

PIER

View full text Add to dashboard Cite

Abstract-A new approach to reduce the numerical dispersion of the six-stages split-step unconditionally-stable finite-difference timedomain (FDTD) method is presented, which is based on the splitstep scheme and Crank-Nicolson scheme. Firstly, based on the matrix elements related to spatial derivatives along the x, y, and z coordinate directions, the matrix derived from the classical Maxwell's equations is split into six sub-matrices. Simultaneously, three controlling parameters are introduced to decrease the numerical dispersion error. Accordingly, the time step is divided into six sub-steps. Secondly, the analysis shows that the proposed method is unconditionally stable. Moreover, the dispersion relation of the proposed method is carried out. Thirdly, the processes of determination of the controlling parameters are shown. Furthermore, the dispersion characteristics of the proposed method are also investigated, and the maximum dispersion error of the proposed method can be decreased significantly. Finally, numerical experiments are presented to substantiate the efficiency of the proposed method.

show abstract

Section: Introductionmentioning

confidence: 99%

Reduction of Numerical Dispersion of the Six-Stages Split-Step Unconditionally-Stable FDTD Method With Controlling Parameters

Kong¹,

Chu²

2012

PIER

View full text Add to dashboard Cite

show abstract

“…Furthermore, higher-order modes of propagation may also easily be excited by the discontinuities. Thus, how to derive adequate equivalent networks that can take care of the wideband feature and rather complicated coupling schemes at the same time has casted very challenging tasks on the conventional approaches [12][13][14][15][16][17][18]. In this paper, system level integration of simulation methods for high data-rate transmission circuit design applications is proposed.…”

Section: Introductionmentioning

confidence: 99%

System Level Integration of Simulation Methods for High Data-Rate Transmission Circuit Design Applications

Hsu

2009

PIER

View full text Add to dashboard Cite

Abstract-A system level integration of simulation methods for high data-rate transmission circuit design applications is developed in this paper. While the elementary circuit theory was responsible for designing the circuits to meet the required performance specifications, three dimensional full-wave electromagnetic simulation technique was adopted to characterize the off-chip parasitic effects induce from the packages. The developed technique was applied for the design of optical Pick-Up Head (PUH) driver circuitry and a data transmission rate up to 640 Mega bits per second (Mb/s) was achieved with standard 0.35 µm CMOS technology, showing the promising feature of applying such technique in successful design for high data-rate transmission circuits.

show abstract

“…Their nonlinear characteristics are essential for circuit performances, and thus the accurate modelling of those nonlinear behaviours in circuits is fundamental to the circuit design and application. A number of simulation methods have been proposed, e.g., the equivalent-model based simulation method [3][4][5][6][7]; the analyticalmodel based simulation method [8], etc.. However, the aforementioned approaches suffer from limitations that may preclude their application in some cases.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Characteristics of P-I-N Diode Circuits Analyzed by a Physically Based Simulation Method

Wang¹,

Wang²,

Liu³

et al. 2017

PIER Letters

View full text Add to dashboard Cite

Abstract-Nonlinear characteristics of semiconductor devices play a key role in the performances of circuits, but their modelling is still a big challenge in circuit simulations nowadays. This paper explores modelling nonlinear characteristics of circuits containing semiconductor devices by presenting a modified physically based simulation method. A p-i-n diode microstrip circuit is taken as a sample, and its nonlinear characteristics, such as the power limiting, bistability, and forward recovery characteristics, are simulated and analysed. The applied method demonstrates its good capability and accuracy of modelling the nonlinear characteristics in the simulation, and moreover clarifies the underlying physical mechanisms. In contrast, the Advanced Design System (ADS) software, a popular circuit simulation program based on the equivalent circuit model, fails to reveal some of those nonlinear characteristics.

show abstract

An Enhanced FDTD Model for Complex Lumped Circuits

Cited by 13 publications

References 20 publications

Reduction of Numerical Dispersion of the Six-Stages Split-Step Unconditionally-Stable FDTD Method With Controlling Parameters

Reduction of Numerical Dispersion of the Six-Stages Split-Step Unconditionally-Stable FDTD Method With Controlling Parameters

System Level Integration of Simulation Methods for High Data-Rate Transmission Circuit Design Applications

Nonlinear Characteristics of P-I-N Diode Circuits Analyzed by a Physically Based Simulation Method

Contact Info

Product

Resources

About