A scattering approach for the characterization of composite materials

Enthalten in
IEEE transactions on antennas and propagation 
Volume
53
Issue
4
Start Page
1507
End Page
1513
Citation
IEEE Transactions on Antennas and Propagation 53 (4): 1507-1513 (2005-04-11)
Publisher DOI
10.1109/TAP.2005.844407
Scopus ID
2-s2.0-18844419508
Publisher
IEEE
A scattering approach for the calculation of the effective constitutive parameters of composite materials is discussed. The scattering behavior of a generic particle is first formulated by a T-matrix using dipole-polarizabilities and an expansion of the dipole fields into spherical harmonics. Then, a simpler alternative approach is developed and applied to compute the scattered fields of composite samples. The effective constitutive parameters are calculated by means of Monte Carlo simulations. The method is validated with small metal helices, forming a chiral material, by comparing the calculated constitutive parameters to those obtained by the Maxwell - Garnett mixing rules. © 2005 IEEE.
Schlagworte
Chiral media
Electromagnetic scattering
Helices
Simulation
DDC Class
600: Technik
620: Ingenieurwissenschaften