Coupling into and scattering from cylindrical structures covered periodically with metallic patches
Abstract
Circular cylindrical structures covered periodically with metallic patches are considered. After an analogy to planar periodic surfaces is shown, formulations are presented for calculating induced currents on the curved surface. The equations are solved and results calculated for the specific case of periodic strips on the cylindrical surface. For a cylindrical structure a twodimensional periodicity exists, as in a planar structure, while a spherical structure allows only a rotational periodicity. When the cylindrical structure is excited by the characteristic harmonic of the system, the spectral response of the transmitted field exhibits resonances that depend on the surface periodicity, as is known for planar structures. Since the cylindrical structure contains finite closed regions, the effects of resonances internal to the structure are seen and give additional information as compared to planar structures.
 Publication:

IEEE Transactions on Antennas and Propagation
 Pub Date:
 February 1990
 DOI:
 10.1109/8.45124
 Bibcode:
 1990ITAP...38..220C
 Keywords:

 Circular Cylinders;
 Metal Strips;
 Plane Waves;
 Radar Cross Sections;
 Surface Geometry;
 Bessel Functions;
 Cylindrical Coordinates;
 Helmholtz Equations;
 Maxwell Equation;
 Periodic Variations;
 Communications and Radar