Near-Field Antenna Analysis Using Source-Potential Energy

This paper presents a near-field antenna analysis using electromagnetic potentials. We introduce the concept of source-potential energy representation and visualize the spatiotemporal distribution of energy densities around a dipole antenna. Our results demonstrate that the source-potential expression enables clear distinction between the conductive energy within the antenna and the radiated energy from the antenna. This visualization provides a novel perspective on energy dynamics in antenna systems, offering insights into the interplay between internal conduction and external radiation processes.