Telecommunication uses large amount of world's electricity consumption and it is rising fast due to rapid digitalization. To meet the massive 1000x datarate increase, large and broadband phased arrays at millimeter wave frequencies are proposed, which increases the complexity of the transceiver significantly. This project aims to improve the power efficiency and linearity of the analog parts in telecommunication systems by avoiding brute force linearization from over-design and heavy DSP correction. In this project a hybrid linearization concept is proposed for millimeter wave integrated phased arrays. The aim is to develop, manufacture multi-branch beamforming RFIC transceiver consisting of low power analog predistorter within the RF phase shifters to provide local linearization capability for high efficiency integrated PAs. This will ease the linearity requirement from DPD significantly. Baseband digital DPD is then used more freely for spatial and beam linearization of the array.

2025

2029