Theory of tissue detection based on FDTD algorithm

Abstract

In this paper, based on the electromagnetic properties of biological tissue in the gigahertz and terahertz frequency, we deduced the finite difference time domain (FDTD) algorithm for Debye media respectively. And in each of the two bands, two kinds of typical biological tissues were simulated. By comparing the cancer tissue with skin tissue, it can be drawn that the absorption rate of electromagnetic wave for cancer tissue is better than that of skin tissue. In addition, simulation experiments allow us to observe the propagation of electromagnetic waves in biological tissue, which can help researchers analyze and understand the theory of electromagnetic wave in cancer detection and treatment.