Title :
Scattering analysis of active FSS structures using spectral-element time-domain method
Author :
Xu, Hao ; Xi, Jiangtao ; Chen, Ru Shan
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
Active frequency selective surface (FSS) structure is a kind of electromagnetic spatial filter, which has been widely used in the communication and radar systems. The spectral-element time domain method has been used to analyze the scattering characteristic of finite planar FSS structures. It has the advantages of spectral accuracy and block-diagonal mass matrix. This technique is based on Gauss-Lobatto-Legendre polynomials and Galerkin´s method is used for spatial discretization. The absorbed boundary condition is employed to truncate the boundary. Numerical results demonstrate the accuracy of the method.
Keywords :
Galerkin method; Legendre polynomials; electromagnetic devices; electromagnetic wave scattering; frequency selective surfaces; polynomial matrices; spatial filters; time-domain analysis; Galerkin method; Gauss-Lobatto-Legendre polynomial; absorbed boundary condition; active FSS structure; active frequency selective surface structure; block diagonal mass matrix technique; electromagnetic spatial filter; scattering analysis; spatial discretization; spectral accuracy; spectral element time domain method; Accuracy; Finite element analysis; Frequency selective surfaces; PIN photodiodes; Polynomials; Scattering; Time-domain analysis; active frequency selective surface; scattering; spectral-element time domain method;
Conference_Titel :
Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-7-5641-4279-7
