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



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


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.
IEEE Transactions on Electromagnetic Compatibility


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


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], (Accessed July 24, 2024)


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Created January 4, 2015, Updated January 27, 2020