Intensity of Electromagnetic Waves as a Function of Frequency, Source Distance and Aperture Angle

Intensity of Electromagnetic Waves as a function of frequency is usually not treated by the scientific community.The energy transport in Electromagnetic Waves (EMW) calculated by means of the Poynting vector formula, might not yield to correct results, because it only gives an average energy on a surface. There is no reference about the volumetric energy distribution at a distance from the source,...