Publication: IEICE TRANSACTIONS on Communications Publication Date: 2010/07/01 Vol. E93-BNo. 7pp. 1851-1854 Type of Manuscript: Special Section LETTER (Special Section on Advanced Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'09/Kyoto) Category: Keyword: anisotropic absorber panels, diagonalization method, principal axis, reflection coefficient, permittivity,