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The Intermediate Data Format (IDF) is a specification designed to provide a neutral representation for exchanging printed circuit assembly (PCA) data among mechanical design (MCAD), PCA layout (ECAD), and physical design analysis (MCAE) applications. Powerful analysis software, like Ansys, Maxwell, Semcad, Altium Designer or SolidWorks - CircuitWorks, can import the idf files and use the model for...
Bergeron diagram method is a method to evaluate the effects of reflections on signal integrity. This graphic method is based on the real line's characteristics and it's valid for both linear and non-linear input/output characteristics of the driver/receiver. The value of the line characteristic impedance Z0 is considered always the same at every reflection because the Bergeron method is used only...
Available numerical methods for the characterization of microstrip lines involve extensive computations. The question that rises is which method should be used for a particular case. We propose to evaluate the results given by these formulas. The geometrical parameters of the microstrip structure are chosen in the commonly used range for PCBs. The purpose is to find out if well worth the effort to...
The paper studies the reflections of the signals transmitted over PCB traces in the case of nonlinear transmission line terminators. First, the features of the approach presented in (the case of constant terminators) are briefly recapitulated. Next, the improved simulator is presented. This last approach takes into consideration the input/output voltage-current characteristics of the digital circuits...
The purpose of this paper is to propose an electrical model for spiral planar inductors on PCBs and estimate the electrical parameters of this model according to the technological parameters. In order to evaluate the accuracy of the model, several inductors on PCB were designed and the measurements were compared to the theoretical results. The obtained electrical model was validated by Pspice simulation...
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