Electromagnetic field computation of simple structures on printed circuit boards by the finite-element method

Hollaus, Karl; Bíró, Oszkár; Caldera, Peter; Matzenauer, Gernot; Paoli, G.; Preis, Kurt; Stockreiter, Christian; Weiß, Bernhard

doi:10.1109/tmag.2006.871959

Cited by 10 publications

(4 citation statements)

References 8 publications

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Section: Numerical Examplesmentioning

confidence: 99%

“…To validate the method, a basically 2D problem a 98.5 mm long microstrip has been analysed (Hollaus et al , 2006). Contrary to investigations in Hollaus et al (2006), the computational domain in the current analysis is restricted to the length of the microstrip terminated by SIBCs. Figures 3 and 4 show results obtained by FDTD with SIBC with those calculated by means of transmission line parameters per unit length (R′=2.34 Ω/m, L′=468.4 nH/m, G′=4.661 mS/m and C′=81.98 pF/m) indicated by “2D Approx.” The reference resistance has been assumed to be 50.0 Ω in the calculation of the reflection parameter S 11 .…”

Section: Numerical Examplesmentioning

confidence: 99%

“…A comprehensive field simulation of a printed circuit board (PCB) with currently available computer resources is still a challenging task concerning simulation times and memory requirements (Hollaus et al , 2006, 2008). To facilitate the design of PCBs, a possible solution is to represent the PCB by a circuit.…”

Section: Introductionmentioning

confidence: 99%

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Extraction of circuit parameters from PCB by FDTD and SIBC

Hollaus

Bíró

Matzenauer

et al. 2009

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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PurposeThe purpose of this paper is to study the extraction of scattering parameters (SPs) from simple structures on a printed circuit board (PCB) by the finite difference time domain (FDTD) method with the aid of a surface impedance boundary condition (SIBC).Design/methodology/approachThe incorporation of SIBC into the FDTD method is described for the general case. The excitation of a field problem by a field pattern and the transition from the field solution to a circuit representation by SPs is discussed.FindingsSPs obtained by FDTD with SIBC are validated with semi‐analytic solutions and compared with results obtained by different numerical methods. Results of a microstrip with a discontinuity considering losses are presented demonstrating the capability of the present method.Originality/valueThe comparison of numerical results obtained by different methods demonstrates the capability of the present method to extract SPs from PCBs very efficiently.

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Section: Numerical Examplesmentioning

confidence: 99%

Section: Numerical Examplesmentioning

confidence: 99%

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Extraction of circuit parameters from PCB by FDTD and SIBC

Hollaus

Bíró

Matzenauer

et al. 2009

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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“…Calculations on PCB crosstalk using the transmission line matrix (TLM) method are presented in [7]. The finite element method (FEM) is another method that allows irregular discretization, which aids in modeling complex geometries [8,9], but needs additional computation to formulate and solve large matrices. The crosstalk between microstriplines on PCBs has also been studied with the finite-difference time-domain method (FDTD) and a circuit model [9].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Crosstalk Reduction Techniques in RF Printed Circuit Board Using FDTD Method

Packianathan¹,

Srinivasan²

2015

International Journal of Antennas and Propagation

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Miniaturization of the feature size in modern electronic circuits results from placing interconnections in close proximity with a high packing density. As a result, coupling between the adjacent lines has increased significantly, causing crosstalk to become an important concern in high-performance circuit design. In certain applications, microstriplines may be used in printed circuit boards for propagating high-speed signals, rather than striplines. Here, the electromagnetic coupling effects are analyzed for various microstrip transmission line structures, namely, microstriplines with a guard trace, double stub microstriplines, and parallel serpentine microstriplines using the finite-difference time-domain method. The numerical results are compared with simulation results, where the variants are simulated using an Ansoft high-frequency structure simulator. The analysis and simulation results are experimentally validated by fabricating a prototype and establishing a good correspondence between them. Numerical results are compared with simulation and experimental results, showing that double stub microstriplines reduce the far end crosstalk by 7 dB and increase the near end crosstalk by about 2 dB compared with the parallel microstriplines. Parallel serpentine microstriplines reduce the far end crosstalk by more than 10 dB and also reduce more than 15 mV of peak far end crosstalk voltage, compared with parallel microstriplines.

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