Estimation Of Average Absorption Cross Section Of A Skin Phantom In A Mm-Wave Reverberation Chamber

The average absorption cross section (AACS) of a human skin-equivalent phantom is calculated under diffuse exposure in a reverberation chamber (RC) in the mm-wave band. Two methods are proposed, in the first method the quality factor of the RC is evaluated in the spectral domain. The second method is based on the theory of room electromagnetics and fitting power delay profile to obtain reverberation time. Similar results were obtained for both methods. AACS values of 225 +/- 0.048 cm(2) and 225 +/- 0.017 cm(2) were derived for the first and second method, respectively. These results are in good agreement.