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/* A Note on EM.Terrano's Native Dipole Radiators */
The directivity of the dipole antenna is given be the expression:
<math> D_0 \approx \frac{2\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]^2 }{C + \text{ln}(k_0L) - C_i(k_0L) + \frac{1}{2} \text{sin}(k_0L) \left[ S_i(2k_0L) - 2S_i(k_0L) \right] + \frac{1}{2} \text{cos}(k_0L) \left[ C + \text{ln}(k_0L/2) + C_i(2k_0L) - 2C_i(k_0L) \right] } \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]^2 </math>
=== A Note on the Rotation of Antenna Radiation Patterns ===
