openFDTD

An open source program to simulate electromagnetic signals and interactions with materials.

Overview

The simulations employ the FDTD method, on a staggered grid as formulated by Kane S. Yee.

Dependencies

The following dependencies are required to render the GUI.

• Dear ImGui
• OpenGL 3
• GLFW 3
• gnuplot
• ffmpeg

Installation

In order to run this program, clone the repository and from the top directory run:

cmake -S . -B build
cmake --build build/

The binary file openFDTD is generated in the project's bin directory.

Gallery

1D FDTD with TFSF, material, and 1st order Mur ABC

Planned Features

• One dimension
  • Simple propagation
  • Simple Mur boundary conditions
  • Total Field - Scattered Field formulation
  • Materials in grid
  • Automatic calculation of required parameters
  • Specral analysis
  • Lossy materials
  • More sophisticated boundary conditions
• Two dimension
• Three dimension
  • Implement a mesher for 3D objects (ex: .stl file to cubic grid)
• General
  • Create a GUI