Abstract :
A general formula is presented for the mean radar cross section, σ-, of long, thin, straight, cylindrical metallic wire of finite length, radius, and conductivity at radar frequency f. Curves of σ-versus f for bismuth (poor conductor) and for perfectly conducting wires, having length 3.14 meters (10 feet) and radius 0.0127 cm (5 mils), illustrate the dependence of σ-on conductivity.