Title :
Indirect mode matching solution to scattering from a cluster of spheres
Author :
Ioannidou, M.P. ; Skaropoulos, N.C. ; Chrissoulidis, D.P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Aristotelian Univ. of Thessaloniki, Greece
Abstract :
Electromagnetic scattering by clusters of spheres has been analyzed by direct mode matching [Bruning and Lo, 1971]: the multipolar amplitudes are determined by solving a set of linear equations obtained by directly imposing the boundary conditions at the surface of each sphere. Experimental results are available for the simple case of two spheres [Bruning and Lo, and Kattawar and Dean, 1983]. Other theoretical treatments of this problem have used a group-theoretic approach and an order-of-scattering technique. The present authors apply the indirect mode matching (IMM) technique to obtain a compact and exact solution to scattering from a cluster of N spheres. Boundary conditions are imposed indirectly through Green´s second theorem. They present numerical results for an acrylic bisphere, which has been investigated in Kattawar and Dean; interest is also in the oxygen and ozone molecules.<>
Keywords :
Green´s function methods; electromagnetic wave scattering; mode matching; oxygen; ozone; Green´s second theorem; O; O/sub 3/; acrylic bisphere; boundary conditions; cluster of spheres; indirect mode matching solution; linear equations; multipolar amplitudes; scattering; Aerosols; Aggregates; Boundary conditions; Differential equations; Electromagnetic analysis; Electromagnetic scattering; Harmonic analysis; Polarization; Surface treatment; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.407994
