Measurements of Total Radiated Power of UMTS Phones in Reverberation Chamber

The present paper contains description and validation of the setup used for measurements of total radiated power (TRP) in the reverberation chamber. Measurements of TRP for various mobile phone standards have been presented before, and this paper is specifically focused on characterizing UMTS handsets designed to use the W-CDMA air interface. The reverberation chamber is shown to be a fast and repeatable alternative for these types of measurements even when the correlation bandwidth is smaller than the UMTS channel bandwidth. Examples of measurement times and uncertainties are shown. The measurement time is reduced to 1 minute per channel by making use of continuous instead of stepwise mechanical mode stirring.