1,721,126 research outputs found
Filter and Grounding Solutions for Limiting Radiated Emission of a PCB with an Attached UTP Cable
No full textThis paper provides a methodological approach for predicting the radiated emission from a PCB with an attached UTP cable, supported by simulations. First, the sources of emission are analyzed and simple equivalent circuits for SPICE simulations are provided. The concept of filtering and grounding for emission reduction are introduced and a discussion on how to use them in practice is provided. Second, 3D numerical software is used to quantify the effectiveness of several fixes for an isolated PCB located in a metallic enclosure or with a chassis
On the use of irregular grids in the zeroth-order vector finite element - time domain (VFE-TD) method
No full textThis is an investigation regarding the use of zeroth-order vector finite elements. The mathematical formulation of the zeroth-order VFE-TD method is exposed to illustrate the solution of 2-D problems. In addition, a discussion about the optimum choice of different irregular trapezoidal and triangular grids is considered
Computer application of the EMC course at the University of Rome 'La Sapienza'
No full textSince 1990 an EMC course has been established for the Degree on Electrical Engineering at the University of Rome 'La Sapienza'. The EMC course is held during the fifth year and includes about 72 hours of lectures and 48 hours of computer applications and experimental test work. An overview of the computer applications developed during the EMC course at the University of Rome 'La Sapienza' is presented
Circuit-oriented FEM modeling of finite extension graphene sheet by impedance network boundary conditions (INBCs)
No full textThe paper deals with an efficient and accurate circuit-oriented model of multilayer graphene sheet in finite-element method (FEM) by impedance network boundary conditions (INBCs). The INBCs have been developed in the past to model efficiently the field penetration through thin conductive shields. Here, INBCs are used to model graphene sheet by an original and simple circuit-oriented FEM model. The efficiency of the method is proven by validation in different test configurations available in litterature. The proposed circuit-oriented FEM model seems to be very suitable to model next generation smart materials using graphene
Assessment of magnetic field levels generated by a wireless power transfer (WPT) system at 20 kHz
No full textA neural network approach for the prediction of cross talk in non uniform multiconductor transmission lines
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