Changes
/* A Note on EM.Terrano's Native Dipole Radiators */
When you define a new transmitter set or a new receiver set, EM.Terrano assigns a vertically polarized half-wave dipole radiator to the set by default. The radiation pattern of this native dipole radiators is calculated using well-know expressions that are derived based on certain assumptions and approximations. For example, the far-zone electric field of a vertically-polarized dipole antenna can be expressed as:
<math> E_\etatheta(\theta,\phi) = \approx j\eta_0 I_0 \frac{e^{-jk_0 r}}{2\pi r} \left[ \frac{\text{cos } \left( \frac{k_0 L}{2} \text{cos } \theta \right) - \text{cos } \left( \frac{k_0 L}{2} \right) }{\text{sin}\theta} \right] </math><math> E_\phi(\theta,\phi) \approx 0 </math>
=== A Note on the Rotation of Antenna Radiation Patterns ===
