A 90o perfectly conducting corner cube reflector has a shortdipole (oriented in the z-direction) placed at a distance d from the vertex. The antenna is fed by current Io.
a) Find the equivalent array of dipoles by determining a system of images
b) Derive the array factor
c) Determine the total far-field (E)
d) For a distance d=0.5λ, calculate the directivity on y-axis.