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FDTD Dispersive Modeling of Human Tissues Based on Quadratic Complex Rational Function
- Issue Date
- Feb-2013
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Biological tissues; curve fitting; dispersive media; FDTD methods
- Citation
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.61, no.2, pp.996 - 999
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
- Volume
- 61
- Number
- 2
- Start Page
- 996
- End Page
- 999
- ISSN
- 0018-926X
- Abstract
- We propose a dispersive finite-difference time domain (FDTD) suitable for the electromagnetic analysis of human tissues. The dispersion relation of biological tissues is characterized by a quadratic complex rational function (QCRF) that leads to an accurate FDTD algorithm in 400 MHz-3 GHz. QCRF coefficients are extracted by applying the complex-curve fitting technique, without initial guess. Numerical examples are used to illustrate the computational accuracy and stability of QCRF-based FDTD.
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Related Researcher
- Kim, Hyeongdong
- COLLEGE OF ENGINEERING (SCHOOL OF ELECTRONIC ENGINEERING)