On accuracy of simple FDTD models for the simulation of human body path loss

Author

Makarov, Sergey N. ; Khan, Umair I. ; Islam, Md Monirul ; Ludwig, Reinhold ; Pahlavan, Kaveh

Author_Institution

Electr. & Comput. Eng., Worcester Polytech. Inst., Worcester, MA, USA

fYear

2011

fDate

22-24 Feb. 2011

Firstpage

18

Lastpage

23

Abstract

This paper compares a basic, MATLAB coded, time-domain FDTD formulation for the path loss around the human body with accurate FEM modeling in Ansoft HFSS (ANSYS). We show that the time domain FDTD analysis yields comparable results even though it uses a homogeneous body model and simple boundary conditions. Reasons for this important observation are investigated. The present study only considers the exterior TX and RX antennas, which are located close to the body. A more detailed FDTD simulation of on-body antennas is currently underway.

Keywords

biological effects of fields; biomedical communication; finite difference time-domain analysis; receiving antennas; transmitting antennas; wearable antennas; Ansoft HFSS; FDTD models; MATLAB coded time-domain FDTD formulation; RX antennas; TX antennas; homogeneous body model; human body path loss simulation; on-body antennas; time-domain FDTD formulation; Biological system modeling; Dipole antennas; Finite difference methods; Finite element methods; Mathematical model; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors Applications Symposium (SAS), 2011 IEEE

Conference_Location

San Antonio, TX

Print_ISBN

978-1-4244-8063-0

Type

conf

DOI

10.1109/SAS.2011.5739771

Filename

5739771