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MLFMA for solving integral equations of 2‐D electromagnetic problems from static to electrodynamic
Author(s) -
Zhao JunSheng,
Chew Weng Cho
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19990305)20:5<306::aid-mop8>3.0.co;2-b
Subject(s) - multipole expansion , quasistatic process , integral equation , microwave , space (punctuation) , boundary (topology) , mathematics , fast multipole method , mathematical analysis , physics , computer science , quantum mechanics , operating system
A normalized two‐dimensional (2‐D) multilevel fast multipole algorithm (MLFMA) with a computational complexity of O ( N ) for the quasistatic (very low‐frequency) case is developed. This normalized 2‐D MLFMA can be used not only independently as in the quasi‐static case, but also to solve large‐scale structures with dense subgridded areas when combined with a dynamic algorithm. The null‐space problem for boundary integral equations at very low frequencies is also studied. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 20: 306–311, 1999.