Title :
Double exponential quadrature formulas for the direct calculation of Sommerfeld integral tails
Author :
Ružica Golubović Nićiforović;Athanasios G. Polimeridis;Juan R. Mosig
Author_Institution :
Laboratory of Electromagnetics and Acoustics (LEMA), Ecole Polytechnique Fé
fDate :
4/1/2011 12:00:00 AM
Abstract :
A novel algorithm for efficient direct integration of Sommerfeld integral (SI) tails arising in the numerical analysis of antennas and scatterers embedded in multilayered media, is presented based on double-exponential (DE) quadrature formulas. When compared to the so-called partition-extrapolation methods, which are traditionally employed for this type of problems, DE quadrature formulas maintain very high accuracy and show error controllable features, while reducing significantly the computational time. Moreover, this fully numerical scheme is very easy to implement, since the associated weights and abscissas can be precomputed.
Keywords :
"Green´s function methods","Silicon","Accuracy","Media","Antennas","Moment methods","Electromagnetics"
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Print_ISBN :
978-1-4577-0250-1