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e-Article

Analysis of the antenna in proximity of human body base on the dual-grid FDTD method
Document Type
Conference
Source
2013 Proceedings of the International Symposium on Antennas & Propagation Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on. 02:853-856 Oct, 2013
Subject
Communication, Networking and Broadcast Technologies
Fields, Waves and Electromagnetics
Time-domain analysis
Finite difference methods
Antenna radiation patterns
Dipole antennas
Biological system modeling
Dielectrics
Language
Abstract
Dual-grid finite-difference time-domain(DG-FDTD) method is suitable for electromagnetic simulation of multi-scale problems, this paper validate the accuracy of DG-FDTD through a simple simulation. An accurate human model was built based on Zubal human digital phantom, which was used to analyze the electrical performance of the antenna on human body. Simulation results show that human body had a significant influence on the antenna due to the high relative permittivity of the body, the closer from human body, the greater impact on antenna. Because of the shielding of the human body, the antenna radiation power on the backside of human body is 5dB smaller than which in front of human body.