Optical theorem and forward scattering sum rule for periodic structures
IEEE Transactions on Antennas and Propagation, cilt.60, sa.8, ss.3818-3826, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 60 Sayı: 8
- Basım Tarihi: 2012
- Doi Numarası: 10.1109/tap.2012.2201113
- Dergi Adı: IEEE Transactions on Antennas and Propagation
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.3818-3826
- Anahtar Kelimeler: Forward scattering, frequency selective surface, Herglotz function, metamaterial, optical theorem, periodic structure, physical bounds, sum rule
- Kırklareli Üniversitesi Adresli: Hayır
Özet
Based on energy conservation, an optical theorem is constructed for a slab having an arbitrary periodic microstructure in a plane. A sum rule for low pass structures is derived using analytic properties of Herglotz functions based on causality and passivity. The sum rule relates the total cross section to the static polarizability per unit cell, and quantifies the interaction between the slab and electromagnetic fields possible over all wavelengths. The results are illustrated with several numerical and experimental examples. © 1963-2012 IEEE.