Modulation Distortion: An Innovative Method for High-Accuracy EVM Measurements (.PDF Download)

Sept. 17, 2019
Modulation Distortion: An Innovative Method for High-Accuracy EVM Measurements (.PDF Download)

In wireless communication systems, power amplifiers (PAs) make a significant contribution to the quality attained in the RF chain. These components play a critical role in determining the condition of the communication service in terms of signal quality and battery life.

PAs are positioned in the last stage of the transmission chain and generate the RF power that’s then transmitted over the antennas. PA designers aim to maximize linearity while maintaining a high level of efficiency. This balance is challenging to achieve across extremely wide signal bandwidths in the millimeter-wave (mmWave) frequency spectrum.