Journal ArticleDOI
Modeling of electromagnetic fields and electrical circuits with lumped and distributed elements by the WETD method
Mauro Feliziani,Francescaromana Maradei +1 more
- Vol. 35, Iss: 3, pp 1666-1669
TLDR
In this paper, the Whitney-elements time-domain (WETD) method is applied to solve a coupled problem of EM fields and circuits, which are characterized by lumped elements, distributed elements and independent sources.Abstract:
The Whitney-elements time-domain (WETD) method is a very powerful full-wave EM field solver in the time domain The WETD method is here applied to solve a coupled problem of EM fields and circuits, which are characterized by lumped elements, distributed elements and independent sources The method consists in the variation of the finite element functional to include circuit elements in the computational domain By locating the terminals of the lumped elements in two nodes delimiting an edge of the FEM mesh, a simple computational procedure is obtained The distributed elements are modeled as a series of lumped elements The proposed full-wave method is a suitable tool to analyze electrical circuits and EM fields in complex configurationsread more
Citations
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Journal ArticleDOI
Model-order reduction of finite-element approximations of passive electromagnetic devices including lumped electrical-circuit models
Hong Wu,Andreas C. Cangellaris +1 more
TL;DR: In this article, a methodology for the development of reduced-order macromodels for multiport passive electromagnetic devices that include embedded lumped elements is presented, and the conditions necessary for the discrete model to be passive are discussed.
Journal ArticleDOI
Analysis of the coupling of an incident wave with a wire inside a cavity using an FEM in frequency and time domains
TL;DR: In this article, a numerical method based on finite elements in both the frequency and time domains for modeling the coupling of an incident wave with a conducting wire placed inside a metallic cavity having a small aperture is presented.
Journal ArticleDOI
A Symmetric Electromagnetic-Circuit Simulator Based on the Extended Time-Domain Finite Element Method
Rui Wang,Jian-Ming Jin +1 more
TL;DR: The proposed simulator significantly extends the capability of the existing time-domain finite element solver to model more complex and active devices such as microwave amplifiers.
Journal ArticleDOI
Circuit-oriented FEM: solution of circuit-field coupled problems by circuit equations
TL;DR: In this paper, a general circuit-oriented, full-wave, finite-element method (FEM) is proposed to analyze the coupled problem between circuits and fields both in frequency and in time domains.
Journal ArticleDOI
Cosimulation of Electromagnetics-Circuit Systems Exploiting DGTD and MNA
Ping Li,Li Jun Jiang,Hakan Bagci +2 more
TL;DR: A hybrid electromagnetics (EM)-circuit simulator exploiting the discontinuous Galerkin time domain (DGTD) method and the modified nodal analysis (MNA) algorithm is developed for analyzing hybrid distributive and nonlinear multiport lumped circuit systems.
References
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Journal ArticleDOI
Extending the two-dimensional FDTD method to hybrid electromagnetic systems with active and passive lumped elements
TL;DR: In this paper, the authors extended the FDTD method to include distributed electromagnetic systems with lumped elements (a hybrid system) and voltage and current sources, and derived FDTD equations that include nonlinear elements like diodes and transistors.
Journal ArticleDOI
Whitney elements time domain (WETD) methods
Jin-Fa Lee,Z.S. Sacks +1 more
TL;DR: Stability analysis is presented using the Z-transform, computational complexity, and several numerical results for the implicit algorithm for solving transient responses of electromagnetic problems.
Journal ArticleDOI
Rigorous electromagnetic modeling of chip-to-package (first-level) interconnections
TL;DR: A methodology is presented for the rigorous electromagnetic analysis of pulse transmission through first-level interconnects using a full-wave, vectorial, time-dependent Maxwell's equations solver with SPICE circuit models for the nonlinear drivers to facilitate the accurate modeling of the electromagnetic phenomena occurring at the chip-to-package interface.
Journal ArticleDOI
New method of modeling electronic circuits coupled with 3D electromagnetic finite element models
TL;DR: In this paper, a scalar electromagnetic finite element with the time integral of electric scalar potential as their nodal variable is presented, which can be easily combined with two-dimensional or three-dimensional elements, with three components of magnetic vector potential and the Time Integral of Electric Scalar Potential (TIP) as nodal variables.