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- 实验方案
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - FDTD Numerical Dispersion Relation in Spherical Coordinates
摘要： The numerical dispersion relation for the ?nite-difference time-domain method applied to spherical grids is derived. Derivations are appropriately based on the elemental spherical wave functions that natively propagate in such grids. The derived expression properly relates numerically rendered errors as functions of the spherical grid parameters such as azimuthal and polar modes and proximity to the singularity inducing origin and z-axis.
关键词： spherical coordinates,numerical dispersion,FDTD
更新于2025-09-04 15:30:14
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - An Eigenmode Method with Improved Accuracy for Guided Waves
摘要： A finite difference frequency domain eigenmode method with improved accuracy for guided waves is presented. The presented method takes the conducting edge field singularity into account. The numerical experiments showed that the presented method was more accurate than the conventional method. The presented method can also be combined with the conformal method to handle more complex geometries. The numerical results showed that the combined edge singularity correction and conformal method further improved the accuracy.
关键词： conformal technique,waveguide port,FDTD,edge singularity correction,eigenmode method
更新于2025-09-04 15:30:14
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[IEEE 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE) - Nara, Japan (2018.10.9-2018.10.12)] 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE) - Numerical Analysis of Specific Absorption Rate and Temperature Rise in Human Head Model using FDTD Method
摘要： Radiation of electromagnetic wave to human head may cause the heating effect to the tissue. To study these effects, Specific Absorption Rate (SAR) and Temperature rise inside the human head are examined using the numerical calculation approach, Finite Difference Time Domain (FDTD) Method. Heterogeneous model of Human head is designed as layers structured such as Skin, Fat, Bone, Dura, CSF (Cerebrospinal fluid), and Brain. Analysis is based on parallel and perpendicular polarization of Electromagnetic wave using frequencies are 900MHz, 1800MHz, 2450MHz for 4G and 3.35GHz, 4.5 GHz for 5G.
关键词： FDTD,Temperature,SAR
更新于2025-09-04 15:30:14
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[IEEE 2018 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) - Nagoya, Japan (2018.8.29-2018.8.31)] 2018 IEEE International Workshop on Electromagnetics:Applications and Student Innovation Competition (iWEM) - A Hybrid MoM/FDTD Method for Exposure Assessment of Wireless Power Transfer Systems
摘要： A hybrid method combining method of moments (MoM) and finite-difference time-domain (FDTD) method is proposed to evaluate exposure in a human body close to wireless power transfer (WPT) systems. Validation of the proposed method has been demonstrated by analysis of a WPT system close to a dielectric cube. Finally, the proposed method was used to determine specific absorption rate inside a human body in the vicinity of a spiral-type WPT system.
关键词： hybrid method,method of moments,exposure assessment,FDTD,wireless power transfer
更新于2025-09-04 15:30:14