Fundamentals of Engineering Electromagnetics 1st Edition by David Cheng

Exercise 56

The antenna of a 120-(kW) monostatic radar operating at 3 (GHz) has a directive gain of 20 (dB). Suppose that it tracks a target 8 (km) away and that the backscatter cross section of the target is 15 (m 2 ). Determine
a) the magnitude of the electric intensity at the target,
b) the amount of power intercepted by the target, and
c) the amount of the reflected power absorbed by the antenna at the radar.