Chapter 14, Problem 14.2P

Prepare a curve, r vs. $\theta$ in polar coordinates, showing the locus in the $\varphi =0$ plane in which for a Hertzian dipole (a) the radiation field $\left|Z_{\theta s}\right|$ is one-half of its value at r = 10⁴ m, $\theta =\pi /2$; (b) average radiated power density < S _r> is one-half its value at r = 10⁴ m, $\theta =\pi /2$.