MATLAB Simulation of Electric Dipole in Electromagnetic Fields with Code Implementation

This article discusses MATLAB simulation source codes for analyzing electric dipoles in electromagnetic fields and impedance Smith charts frequently utilized in microwave and antenna engineering. These simulations employ numerical computation methods to model electromagnetic phenomena, including dipole radiation pattern calculations using vector potential formulations and impedance transformations through transmission line equations. The implementation features key MATLAB functions such as quiver plots for field visualization, polar plots for radiation patterns, and contour plots for Smith chart representations. Through careful study of the code architecture, users can understand how Maxwell's equations are discretized and solved numerically, including near-field and far-field calculations using Green's function approaches. These simulations serve as practical tools for verifying theoretical concepts, with modular code design allowing parameter modifications for different dipole configurations and impedance matching scenarios. By continuously practicing and refining these simulations, engineers can enhance their understanding of wave propagation, antenna parameters, and impedance matching techniques, making this codebase valuable for both academic learning and professional development in electromagnetic engineering.