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This paper presents a simulation methodology for efficient investigation of human exposure to low-frequency (1 Hz to 10 MHz) electromagnetic fields generated by automotive electrical systems such as wireless power transfer (WPT) systems. The main stages of the modeling process are discussed. A simulation approach based on the combination of computationally efficient methods such as surface integral...
The novel volume integral equation (VIE) method was developed for an accurate analysis of low frequency (LF) electromagnetic (EM) fields induced inside human body voxel model. To improve stability of LF solutions, we introduced two sets of unknowns: electric voluminous currents and surface charges defined on interfaces between different materials. At low frequencies, an efficient version of VIE was...
Aim of the paper is to perform comparative study of human exposure due to low-frequency (1 Hz to 10 MHz) electromagnetic fields for different human body models. Simulation approach based on Volume Integral Equations (VIE) combined with Adaptive Cross Approximation (ACA) technique to improve performance of numerical solution is described. Human exposure due to low-frequency uniform magnetic field is...
This paper presents a simulation methodology for investigation of human exposure to low-frequency (1 Hz to 30 MHz) electromagnetic fields generated by automotive wireless power transfer (WPT) systems. The main stages of the modeling process are discussed. A new simulation approach based on the combination of computationally efficient surface integral equation (SIE) and volume integral equation (VIE)...
This paper presents simulations of capacitive seat sensor performance. Quasi-electrostatic approach, based on Method of Moments is used. Method is enhanced in order to take into account lossy dielectrics. Fast iterative solution is developed, which utilizes Adaptive Cross Approximation approach for matrix compression. Method is validated against analytic solutions. Simulations of seat sensor impedance...
In this paper, a hybrid MOM with a special Green's function for glass antenna elements is extended to analysis of printed circuit boards (PCB) and printed microwave antennas (PMA). This approach is validated by comparison of simulated results with measurements, and a close agreement between them is shown. Application of the hybrid MOM to practical EM/EMI problems is demonstrated.
In this paper effective acceleration technique for solving of electrically large EMC problems is described. It is known that for solving of large linear systems iterative solvers are very practical. The main problems for solution of such problems are related to large memory requirement for matrix and poor convergence of iterative solver. For solution of these problems the following techniques are...
Effective computational techniques for Multi-Transmission Line (MTL) based on Lumped Circuit Transmission Line (LCTL) method are suggested and applied for EMC analysis of complex cable harness. Accuracy of developed algorithms is validated by comparisons with measurements.
A 3-phase DC-AC inverter system model is developed and noise produced by this non-linear system is investigated. Importance of parasitic elements consideration in computational model is shown for radiated emission test. Modeling of the system is performed using multi transmission line theory. Comparison of simulation results with measurements is done.
Model for the stochastic multi-cable bundle is developed. It is based on lumped circuit model of the multi transmission lines with randomly formed cross-sections along cable system. Interaction of cables with surrounding environment is simulated using hybridization of transmission line theory with the Method of Moments. Validation of developed approach is performed against measurements.
Based on modified mirror image method, an equivalent model of layered glass antenna structure is suggested and validated by comparison with traditional Green's function Sommerfeld solution. The derived approximate Green's function is applied to consider finite-sized glass antennas integrated into a full car model. The obtained hybrid MoM scheme is validated by comparison with measurements on simplified...
Based on modified mirror image method, an equivalent model of layered glass antenna structure is suggested and applied to consider finite-sized glass antennas integrated into a full car model. The hybrid MoM is derived and validated by comparison of simulated results with those obtained by measurements on complex finite-sized grid antenna model placed near a metallic plate. Some EMC characteristics...
Paper presents modeling and numerical investigations of log-periodic and horn antennas performed by method of moments (MoM). Obtained results are compared with experimental data. Comparison shows that the simulations have close agreement with measurement.
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