Envelope Tracking for 5G Mobile Handsets
The arrival of 5th Generation (5G) New Radio (NR) brings challenges to Envelope Tracking (ET) systems for mobile handsets. Most notably, 5G NR brings 100MHz modulation bandwidth and Dual Connectivity. A Qorvo ET module solves these needs for 5G mobile. This work summarizes ET 100MHz performance with memoryless Digital Predistortion (DPD) for Band n77 and Band n41. A Memory DPD (MDPD) model is also examined for Band n41.