TY - JOUR 
A1 - Díaz Morcillo, Alejandro Benedicto
AU - Balbastre Tejedor, Juan Vicente
AU - Nuño Fernández, Luis
T1 - New recovery error indicator for adaptive finite-element analysis on waveguiding structures
Y1 - 2003
SN - 0018-9480
UR - http://hdl.handle.net/10317/1425
AB - The adaptive finite-element method (FEM) is an iterative
variant of the FEM where, in a first step, an initial mesh
with few and low-order elements is generated, the corresponding
algebraic problem is solved and the error in the solution is estimated
in order to add degrees of freedom in those regions of the
domain with the biggest error estimation. This process is repeated
until an ending condition is reached. The two basic stages in this
method are the error indication and the mesh enrichment. In this
paper, within the analysis of waveguiding structures, a new error
indicator based on the curl recovery is described. In addition, an
overview on refinement techniques is presented, and the -refinement
employed in this study is briefly described. Results obtained
with the curl-recovery indicator are discussed and compared with
the classical nonadaptive FEM and two previously developed error
indicators: the residual and flux continuity indicators.
KW - Teoría de la Señal y las Comunicaciones
KW - Errores de análisis
KW - Métodos de elementos finitos
KW - Líneas de transmisión
KW - Guías de onda
KW - Error analysis
KW - Finite element method (FEM)
KW - Transmission line
KW - Waveguides
LA - eng
PB - IEEE Microwave Theory and Techniques Society
ER -