An efficient algorithm combining multilevel fast multipole method and the discrete complex image method is presented for analyzing large-scale microstrip structures. The resulting algorithm has the memory requirement and the CPU time per iteration proportional to O(NlogN), where N denotes the number of unknowns. Numerical results for microstrip antennas are presented to demonstrate the efficiency and accuracy of this method
Published in:
Microwave and Guided Wave Letters, IEEE
(Volume:9
,
Issue:
12
)
Date of Publication: Dec 1999