MATLAB Implementation of FDTD (Finite-Difference Time-Domain) Method

In the study of electromagnetic field numerical simulation, several FDTD programs are crucial for beginners and hold significant reference value. These implementations help students better understand FDTD's core principles and computational approaches, including key components like Yee grid discretization, Maxwell's equations time-stepping implementation, and absorbing boundary conditions (ABC) setup. Through practical code examination, learners can deepen their knowledge of numerical techniques for electromagnetic field computation while developing essential programming skills such as matrix operations for field updates, visualization of field propagation, and debugging techniques for stability analysis. These foundational programs also support mastery of critical MATLAB functions including meshgrid creation, vectorized field calculations, and time-loop implementations using explicit finite-difference schemes. We strongly recommend that beginners dedicate time to studying and exploring these FDTD implementations to build a solid foundation for future research and professional work in electromagnetic numerical simulation, ultimately leading to more advanced outcomes in computational electromagnetics.