Q1. The current distribution on a terminated and matched long linear (traveling wave) antenna of length /, positioned along the z-axis and fed at its one end, is given by i = Sloe-jkz' cos [k (½-2')] âz (loeikz' cos [k (½ + z')] âz where I is a constant. Derive expressions for the (a) far-zone spherical electric and magnetic field components (b) radiation power density.