FDTD Dispersive Modeling of Human Tissues Based on Quadratic Complex Rational Function

作者：Ha Sang Gyu^*; Cho Jeahoon; Choi Jaehoon; Kim Hyeongdong; Jung Kyung Young

来源：IEEE Transactions on Antennas and Propagation, 2013, 61(2): 996-999.

DOI：10.1109/TAP.2012.2223448

• Biological tissues
• curve fitting
• dispersive media
• FDTD methods

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 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.

• 出版日期2013-2