dr hab. inż. Tomasz Stefański
Employment
- Head of Department at Department of Decision Systems and Robotics
- Associate professor at Department of Decision Systems and Robotics
Social media
Contact
- tomstefa@pg.edu.pl
Associate professor
- Department of Decision Systems and Robotics
- Faculty of Electronics, Telecommunications and Informatics
- Workplace
-
Budynek A Elektroniki
room EA 336 open in new tab - Phone
- (58) 348 63 23
Head of Department
- Workplace
- Budynek B WETI pokój 151
- Phone
- (58) 348 62 84
Publication showcase
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Signal propagation in electromagnetic media described by fractional-order models
In this paper, signal propagation is analysed in electromagnetic media described by fractional-order (FO) models (FOMs). Maxwell’s equations with FO constitutive relations are introduced in the time domain. Then, their phasor representation is derived for one-dimensional case of the plane wave propagation. With the use of the Fourier transformation, the algorithm for simulation of the non-monochromatic wave propagation is introduced....
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Electromagnetic-based derivation of fractional-order circuit theory
In this paper, foundations of the fractional-order circuit theory are revisited. Although many papers have been devoted to fractional-order modelling of electrical circuits, there are relatively few foundations for such an approach. Therefore, we derive fractional-order lumped-element equations for capacitors, inductors and resistors, as well as Kirchhoff’s voltage and current laws using quasi-static approximations of fractional-order...
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Electromagnetic Problems Requiring High-Precision Computations
An overview of the applications of multiple-precision arithmetic in CEM was presented in this paper for the first time. Although double-precision floating-point arithmetic is sufficient for most scientific computations, there is an expanding body of electromagnetic problems requiring multiple-precision arithmetic. Software libraries facilitating these computations were described, and investigations requiring multiple-precision...
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