Modelo Dos Rayos/Índice/Ecuaciones 3.49-3.53

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Ecuaciones 3.49- 3.53

Equations 3.49-3.53 Note that equation (3.8) may be simplified whenever $sin(\theta _{\Delta }/2)\approx \theta _{\Delta }/2$. This occurs when $\theta _{\Delta }/2$ is less than 0.3 radian. Using equations (3.41) and (3.42) ${\frac {\theta _{\Delta }}{2}}\approx {\frac {2\pi h_{t}h_{r}}{\lambda d}}<0.3rad(3.49)$ which implies that $d>{\frac {20\pi h_{t}h_{r}}{3\lambda }}\approx {\frac {20h_{t}h_{r}}{\lambda }}(3.50)$ Thus as long as d satisfies (3.50), the received E-field can be approximated as