Title :
A study on the choice of combination coefficient for combined field integral equation
Author :
Zhou, Yong Jin ; Zhou, Xiao Yang ; Cui, Tie Jun
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Abstract :
In this paper, we study how to choose the combination coefficient of the combined field integral equation (CFIE) by comparing the iteration steps in solving the relevant matrix equation using the conjugate gradient iterative method. The tentative principle to choose the CFIE combination coefficient is given in terms of the calculations of two typical models, a cylinder and a NASA almond, with different mesh sizes. Another six models with various sizes are then investigated to further validate the principle.
Keywords :
antenna radiation patterns; conjugate gradient methods; electric field integral equations; electromagnetic wave scattering; iterative methods; magnetic field integral equations; satellite antennas; NASA almond; combination coefficient; combined field integral equation; conjugate gradient iterative method; cylinder; electromagnetic radiation; electromagnetic scattering; matrix equation; triangular mesh; Backscatter; Character generation; Electromagnetic analysis; Electromagnetic scattering; Integral equations; Iterative methods; Magnetic analysis; Magnetic fields; Millimeter wave technology; NASA; CFIE; CG method; combination coeffcient;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4076-4
DOI :
10.1109/MAPE.2009.5355757
