EVM Estimation in RF/Wireless Components

This paper presents advancement in power amplifier PA, distortion evaluation through the system figure of merit error vector magnitude EVM. Previous studies had quantified the EVM in a memoryless device and related to signal-noise ratio, SNR. With the increase in the bit per hertz relation and amplitude variations in the modulated waveform found in the present day transmitters give rise to distortion thus a decrease in the SNR and new kind of PA effects start playing an important role with relation to the memoryless case. As result there is give great importance to accounting for all PA effects on the EVM. So in this paper we quantify the EVM in a Wiener-Hammerstein, WH, system model, which will give a better accuracy on the SNR estimation for the real PA behavior.