Experimental Evaluation of Intersymbol Interference in Non-Far Region Transmission using 60GHz-Band Large Array Antennas

摘要

We demonstrate ISI degradation due to the nonuniformity of the aperture field experimentally for the first time. For ideal uniform excitation, ISI is dominated by the delay difference from each element. For actual excitation, ISI is affected significantly by the non-uniformity of the aperture field. Therefore, ISI is essentially dependent on the observation point and should be evaluated additionally along other axes.