Proximity-effect test for lossy wireless-device measurements in reverberation chambers

Published

January 4, 2015

Author(s)

Catherine A. Remley, Joop Aan Den Toorn, Christopher L. Holloway, John M. Ladbury, Chih-Ming Wang

Abstract

We present a test method for quantifying and reducing systematic errors arising from antenna proximity to lossy objects in over-the-air performance testing of lossy large-form-factor wireless devices. The method determines the extent to which antenna proximity to lossy, large-form-factor objects influences the measured reference power transfer function. The test may be used to pre-characterize a given chamber set-up in terms of a minimum distance between antennas and lossy objects. We illustrate the use of the method in a total radiated power measurement of a large, commercially available machine-to-machine device., where agreement to anechoic-chamber measurements is demonstrated to within the measurement uncertainty.

Citation

IEEE Transactions on Electromagnetic Compatibility

Volume

9

Issue

5

Pub Type

Journals

Download Paper

https://doi.org/10.1049/iet-smt.2014.0282

Keywords

machine-to-machine device, over-the-air test, radiated-power measurement, reverberation chamber, wireless system.

Citation

Remley, C. , Aan, J. , Holloway, C. , Ladbury, J. and Wang, C. (2015), Proximity-effect test for lossy wireless-device measurements in reverberation chambers, IEEE Transactions on Electromagnetic Compatibility, [online], https://doi.org/10.1049/iet-smt.2014.0282 (Accessed October 7, 2025)