TY - JOUR N2 - This paper deals with some aspects of formulation and implementation of a broadband algorithm with build-in analysis of some dispersive media. The construction of the finite element method (FEM) based on direct integration of Maxwell’s equations and solution of some additional convolution integrals is presented. The broadband, fractional model of permittivity is approximated by a set of some relaxation sub-models. The properties of the 3D time-dependent formulation of the FEM algorithm are determined using a benchmark problem with the Cole-Cole and the Davidson-Cole models. Several issues associated with the implementation and some constraints of the broadband finite element algorithm are presented. L1 - http://www.journals.pan.pl/Content/102169/PDF/DOI%2010.1515aee-2016-0050.pdf L2 - http://www.journals.pan.pl/Content/102169 PY - 2016 IS - No 4 December EP - 732 DO - 10.1515/aee-2016-0050 KW - dispersive dielectrics KW - electromagnetic field KW - finite element method KW - fractional relaxation KW - wideband numerical scheme A1 - Butryło, Bogusław PB - Polish Academy of Sciences VL - vol. 65 DA - 2016 T1 - Modeling of linear dispersive materials using scalable time domain finite element scheme SP - 719 UR - http://www.journals.pan.pl/dlibra/publication/edition/102169 T2 - Archives of Electrical Engineering ER -