FDTD Electromagnetic Wave Propagation Simulation Program

This MATLAB-implemented FDTD electromagnetic wave propagation program simulates antenna emissions through different media environments. The code utilizes the Finite-Difference Time-Domain (FDTD) method with a structured Yee grid implementation, incorporating Perfectly Matched Layer (PML) boundary conditions to minimize reflections. Through this simulation, we can investigate electromagnetic wave propagation characteristics across various materials, including propagation velocity, reflection coefficients, and refraction phenomena. The program features configurable material parameters (permittivity, permeability, conductivity) and antenna configurations, enabling simulation of diverse transmission scenarios. Key functions include field update equations based on Maxwell's equations, snapshot visualization of E/H field distributions, and time-domain signal analysis. This simulation platform provides valuable insights into electromagnetic wave fundamentals and supports wireless communication system design optimization by allowing parameter studies on signal transmission impacts. The modular code structure permits easy extension for complex media modeling and advanced antenna designs.