Title :
Large absorption effect of metal gratings
Author :
Peng, S.T. ; Lu, Y.C. ; Shiao, C.M.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The scattering of plane wave by a metal grating is rigorously analyzed by incorporating the finite conductivity of metal strips as the imaginary part of a complex dielectric constant. The distributions of field within the metal strips are determined and the absorption of energy by the grating is evaluated. Numerical results are given to illustrate the effect of structure parameters, particularly for the case of very thin gratings
Keywords :
electromagnetic wave absorption; electromagnetic wave scattering; mode matching; permittivity; complex dielectric constant; finite conductivity; large absorption effect; metal gratings; metal strips; plane wave scattering; structure parameters; very thin gratings; Absorption; Conductivity; Dielectric constant; Electromagnetic scattering; Electromagnetic wave absorption; Electromagnetic waveguides; Gratings; Image analysis; Mathematical analysis; Power engineering and energy; Scattering; Strips;
Conference_Titel :
Microwave Conference Proceedings, 1993. APMC '93., 1993 Asia-Pacific
Conference_Location :
Hsinchu
Print_ISBN :
0-7803-1352-6
DOI :
10.1109/APMC.1993.468653
