Journal of Systems Engineering and Electronics ›› 2007, Vol. 18 ›› Issue (4): 679-684.

• ELECTRONICS TECHNOLOGY • Previous Articles     Next Articles

Analysis of wire antennas mounted on large perfectly conducting platforms using MLFMA

Que Xiaofeng & Nie Zaiping   

  1. School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
  • Online:2007-12-24 Published:2010-01-03


The electric eld integral equation (EFIE) combined with the multilevel fast multipole algorithm (MLFMA) is applied to analyze the radiation and impedance properties of wire antennas mounted on complex conducting platforms to realize fast, accurate solutions. Wire, surface and junction basis functions are used to model the current distribution on the object. Application of MLFMA reduces memory requirement and computing time compared to conventional methods, such as method of moment (MOM), especially for the antenna on a large-sized platform. Generalized minimal residual (GMRES) solver with incomplete LU factorization preconditioner using a dual dropping strategy (ILUT) is applied to reduce the iterative number. Several typical numerical examples are presented to validate this algorithm and show the accuracy and computational eciency.