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Simulation of Nonuniform High-Speed Interconnects with Frequency Dependent Parameters by Wavelets on the Interval
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Transient Numerical Solutions of Nonuniform MTL Equations with Nonlinear Loads by Wavelet Expansion in Time or Space Domain
No full textOn the Spiral Resonator Arrays Size Analysis for Misalignment Compensation in Wireless Power Transfer Systems
Full text linkIn this study the authors aim to use a metasurface as an additional component of a two-coil Wireless Power Transfer (WPT) system and to provide a robustness analysis to misalignment between the transmitter and the receiver coils. The analysis between metasurfaces of different size and their optimization performed to improve misalignment robustness is proved by numerical and easy circuital simulations with the aim of predicting the loads to be considered for the single unit-cell to properly control the WPT system and make it more tolerant to misalignment
Modal Analysis for Induced Currents in Metallic Plates
No full textSeveral electromagnetic systems and devices comprise metallic plates, acting either as structural support to other active parts of the system or as electromagnetic shield. In the case of external anomalous or unwanted electromagnetic solicitations, the plates are interested by induced currents. These currents couple with electrically active parts of the system generating spurious effects. To correctly size the protection circuits, the computation of reaction fields and the coupling with the structures is usually done numerically. In this study, we propose a modal analysis of the plate current map to achieve a semi-analytical expression, and we attempt to relate plate modes to a suitable set of lumped elements; this allows a straightforward integration with an equivalent circuit of the system active parts and a consequent ease of calculation for the sizing of the protection system. The results indicate that the proposed approach can achieve acceptable outcomes compared to the FEM approach. Achieving the desired outcomes depends on selecting an appropriate discretization step, which is influenced by both the number of modes and the frequency
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