A combinedsource solution for radiation and scattering from a perfectly conducting body
Abstract
A combined source solution is developed for electromagnetic radiation and scattering from a perfectly conducting body. In this solution a combination of electric and magnetic currents, called the combined source, is placed on the surface S of the conducting body. The combinedsource operator equation is obtained from the Efield boundaryvalue equation. It is shown that the solution to this operator equation is unique at all frequencies. The combinedfield operator equation also has a unique solution, but it is not directly applicable to the aperture radiation problem. The Hfield and Efield operator equations fail to give unique solutions at frequencies corresponding to the resonant frequencies of a cavity formed by a hollow conductor of the same shape. The combinedsource operator equation is solved by the method of moments. The solution, valid for a threedimensional closed surface S, is then applied to a surface of revolution. Examples of numerical computations are given for a sphere, a conesphere, and a finite circular cylinder.
 Publication:

IEEE Transactions on Antennas and Propagation
 Pub Date:
 July 1979
 DOI:
 10.1109/TAP.1979.1142115
 Bibcode:
 1979ITAP...27..445M
 Keywords:

 Boundary Value Problems;
 Electric Conductors;
 Electromagnetic Radiation;
 Electromagnetic Scattering;
 Integral Equations;
 Operators (Mathematics);
 Current Distribution;
 Electric Fields;
 Magnetic Fields;
 Resonant Frequencies;
 Communications and Radar