Broadside radar cross section of the perfectly conducting cube
Abstract
The broadside radar cross section (RCS) of the perfectly conducting cube is predicted from arbitrarily low to arbitrarily high frequencies, and compared to measured data taken for cube side lengths ranging from 0.15 to 4 wavelengths. The predicted and measured RCS curves agree to within the estimated experimental limits of accuracy of + or 1 dB. At low frequencies the magneticfield integral equation was 'augmented' to eliminate its spurious homogeneous solutions and thus to produce high accuracy beyond the resonance region up through the intermediate frequency range. At high frequencies the conventional diffraction solution was 'enhanced' to produce high accuracy down through the intermediate frequency range into the resonance region. Close agreement between these two very different theoretical solutions in the intermediate frequency range confirmed the validity of each solution and permitted calculation of reliable curves for the amplitude and phase of the backscattered far field versus frequency.
 Publication:

IEEE Transactions on Antennas and Propagation
 Pub Date:
 March 1985
 DOI:
 10.1109/TAP.1985.1143582
 Bibcode:
 1985ITAP...33..321Y
 Keywords:

 Electric Conductors;
 Electromagnetic Scattering;
 Radar Cross Sections;
 Wave Diffraction;
 Geometrical Theory Of Diffraction;
 Integral Equations;
 Plane Waves;
 Scatter Propagation;
 Surface Geometry;
 Communications and Radar