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the physical mechanism underlying the proposed metamaterial absorber, elucidating the electric field distribution and surface current distribution. These distributions are scrutinized to unravel the resonant bands generated. Specifically, at 2.78 GHz, the absorption is attributed to the electric and magnetic resonances of the inner circle, while at 5.78 GHz, it is facilitated by the outer ring structure. The figures showcase the robust electric field and current distributions for both frequency bands. Additionally, Figures 6 and 7 highlight an opposing current at the bottom, contributing to the presence of a potent magnetic field. Consequently, a concurrent magnetic and electric field arise, precipitating strong resonance. |
IEEE/ICACT20240022 Slide.10
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