0 0 votes A mast antenna consisting of a $50$ meter long vertical conductor operates over a perfectly conducting ground plane. It is base-fed at a frequency of $600-\mathrm{kHz}$. The radiation resistance of the antenna in ohms is $\frac{2 \pi^{2}}{5}$ $\frac{\pi^{2}}{5}$ $\frac{4 \pi^{2}}{5}$ $20 \pi^{2}$ Maxwell's Equations gate2006-ec antennas electromagnetics numerical-answers + – admin 266 views answer comment Share Follow Add Sync Questions Print 0 reply Please log in or register to add a comment.