The MLFMA Equipped with a Hybrid Tree Structure for the Multiscale EM Scattering

Table 1

Comparison between the two MLFMAs in Section 4.1.

	MLFMA	MLFMA equipped with a HTS
Number of levels	4	4
Number of bottom-layer boxes	784	1273
Memory for the near-field matrix	896.796 MB	450.876 MB