The Multifilament Current Method: Formulations and Applications

The problem formulations and novel applications of multifilament current method (MFCM) are reviewed in this paper. Three different formulations are discussed with respect to object shape and object electrical size as well as dimensions. The applications of MFCM in this paper are reviewed in computations of scattering, eigenmodes detection and periodic structures. By discussing the advantages and open issues of MFCM, it is found that MFCM shows the merits on simplicity as well as conciseness, yet simulation complexity will be significant increased when an 3D object with complex shapes is encountered.