Spatial Channels for Wireless Over-the-Air Measurements in Reverberation Chambers

Published

April 9, 2018

Author(s)

Maria G. Becker, Rob Horansky, Damir Senic, Vincent T. Neylon, Kate Remley

Abstract

NIST is developing a hybrid test chamber for over-the-air characterization of the next generation of wireless devices in spatial channel environments. By combining features of both reverberation and anechoic chambers, the hybrid chamber will produce anisotropic, multipath environments intended to test spatial diversity and beamforming capabilities of multiple- element antenna. Here we present preliminary results that investigate our ability to control spatial channels. Synthetic-aperture measurements are used to calculate the channel's power- angle profile and power-delay-angle profile, which characterize the angle-of-arrival and time- of-arrival of received power. Comparisons are made between an unloaded and loaded chamber. For the loaded configuration, strategically placed RF absorber is shown to create an anisotropic, spatial channel. The hybrid chamber is expected to provide a cost-effective solution for over-the-air measurement of next generation wireless devices.

Proceedings Title

OTA Characterization of Antennas and Wireless Devices (Convened session title)

Conference Dates

April 9-13, 2018

Conference Location

London, UK

Conference Title

European Conference on Antennas and Propagation

Pub Type

Conferences

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Keywords

Millimeter-wave metrology, power-angle-profile, power-delay-angle profile, synthetic-aperture measurement, reverberation chamber, wireless system.

Citation

Becker, M. , Horansky, R. , Senic, D. , Neylon, V. and Remley, K. (2018), Spatial Channels for Wireless Over-the-Air Measurements in Reverberation Chambers, OTA Characterization of Antennas and Wireless Devices (Convened session title), London, UK, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=924495 (Accessed March 2, 2025)