Total Radiated Power Measurements of a mmWave Phased Array in a Reverberation Chamber

TL;DR

This study evaluates the use of reverberation chambers for measuring the total radiated power of mmWave phased arrays, analyzing statistical properties and beamforming estimates to improve measurement accuracy.

Contribution

It introduces a methodology for TRP measurement of mmWave phased arrays in reverberation chambers, including statistical validation and analysis of sampling effects.

Findings

Received power follows exponential distribution

Effective number of independent samples varies with setup

Beamforming TRP estimates show statistical significance

Abstract

This paper explores the use of reverberation chambers for TRP measurements of beamformed radiation by phased arrays at mmWave frequencies. First, the received power was verified by the one-sample K-S GoF test to follow the exponential probability distribution. Different numbers of samples and stirrers' positions were considered. Second, we showed that the effective number of independent samples is different depending on the number of samples and stirrers' positions. Third, the beamforming TRP estimates are presented for all beams, analyzing the statistical significance of the observed differences with a selection of samplings.