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A reconfigurable over-the-air chamber represents a reverberation chamber whose walls are lined with antennas that are terminated in reconfigurable impedances, allowing synthesis of a wide range of channel conditions for over-the-air testing of mobile wireless devices. While these chambers have potential for practical device testing, finding the right impedances to achieve the desired channel characteristics...
Over-the-air (OTA) testing of wireless devices is accomplished typically either in an expensive multi-antenna OTA chamber that offers high multipath control or a low-cost mode-stirred reverberation chamber that offers limited multipath control. We propose a reconfigurable OTA chamber that offers a high level of multipath control at a low cost. We use finite-difference time-domain simulations and measurements...
A 1λ x 1λ circular planar RECAP structure was analyzed for beamforming performance with respect to constrained complexity, in terms of the number of reconfigurable ports NRP and allowed reconfigurable states per port NRS. It was found that diminishing returns of the structure occurred near NRP = 64 reconfigurable ports. Also, increasing the reconfigurable states per port appears to partially compensate...
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