Title :
A method to simulate the electromagnetic parameters of materials with quasi-periodic microstructures and its applications
Author :
Han, Jingyu ; Wang, Qun ; Guo, Hongxia ; Tang, Zhanghong ; Meiwu Shi ; Li, Maohui
Author_Institution :
Coll. of Mater. Sci. & Eng., Beijing Univ. of Technol., Beijing, China
Abstract :
In this paper, a method to simulate the electromagnetic parameters of materials with quasi-periodic microstructures is presented and the parameters of fly-ash cenosphere particles are simulated. Results prove that the permittivity and permeability by this method coincide with that from the Bruggeman formula. By applying this method, it is possible to propose some strategies to improve the current cheap fly-ash cenosphere particles to be used as EMI-shielding materials and microwave absorbing materials.
Keywords :
electromagnetic interference; electromagnetic shielding; electromagnetic wave absorption; fly ash; magnetic permeability measurement; metamaterials; microwave materials; permittivity measurement; Bruggeman formula; EMI shielding material; fly ash cenosphere particle; material electromagnetic parameter; microwave absorbing material; permeability; permittivity; quasiperiodic microstructure; Boundary conditions; Electromagnetic fields; Electromagnetic scattering; Materials science and technology; Microstructure; Microwave theory and techniques; Permeability measurement; Permittivity measurement; Scattering parameters; Shape; Fly-ash cenosphere; Materials with quasi-periodic microstructures; Periodic boundary conditions (PBCs); relative permeability; relative permittivity;
Conference_Titel :
Environmental Electromagnetics, 2009. CEEM 2009. 5th Asia-Pacific Conference on
Conference_Location :
Xian
Print_ISBN :
978-1-4244-4344-4
DOI :
10.1109/CEEM.2009.5303809
