A fading generator using rotated scattering slots

MIMO-OTA (Over-the-air) measurement methods of mobile terminals have been recently studied and developed for mobile communications. However, the methods like these for base station antenna have not been often reported. A fading generator using rotated scattering objects has been proposed in my previous study in order to establish an OTA measurement method for MIMO base station emulating radio environment around the base station. This fading generator is based on a near-field Jakes scattering model that is modified from the conventional Jakes model. Although metal patches on the dielectric disc as scattering objects is used to obtain fading waves in the study, slots on the metal disc are newly adopted as scattering objects in order to get the same waves. In this paper, the validity of the proposed generator is clarified by experiments using a prototype.