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Radio-frequency power distribution measurement system using thin metamaterial absorber

A radio-frequency (RF) power distribution measurement system is developed. The 2-d distribution of an incident RF power is measured on the surface of a finite size metamaterial absorbers, which is designed to suppress undesired edge scattering. The system is evaluated by the measurement of an RF wave transmitted from a dipole antenna. The measured distributions of incident RF power are consistent with those obtained by EM simulations, demonstrating practical effectiveness of the technique to measure RF power distributions.