Simple formula for the RCS of a finite hollow circular cylinder
Abstract
A plain and simple, yet accurate, formula is obtained to calculate the backscattered radar crosssection (RCS) of a perfectly conducting, finite, hollow, circular cylinder with a closed termination. The reradiated field from the cavity region is evaluated via the Kirchhoff approximation and the reciprocity theorem. The scattering from the exterior surface is approximated by the geometrical theory of diffraction (GTD), in conjunction with the equivalent current (EC) concept. The solution neglects the multiple scattering between the open and closed ends of the cavity and can be easily applied to the electromagnetic scattering from a very large cavity.
 Publication:

Electronics Letters
 Pub Date:
 September 1983
 DOI:
 10.1049/el:19830581
 Bibcode:
 1983ElL....19..854H
 Keywords:

 Circular Cylinders;
 Electromagnetic Scattering;
 Geometrical Theory Of Diffraction;
 Radar Cross Sections;
 Backscattering;
 Hollow;
 Communications and Radar