Near-field region

The near-field region refers to the area close to a source of energy, like a radio antenna or a light bulb, where the characteristics of the energy field are different from those farther away. In this zone, the waves behave in a more complex way, often dominated by the source's properties rather than the typical spreading patterns seen in the far-field region, which is farther away. Essentially, the near-field region gives us insights into the source's immediate effects and interactions, while the far-field provides a more uniform representation of energy spreading through space.