This paper presents a DPA design with a DAT power combiner drawn in the package metallization achieving 26.7dBm maximum output power at 25% PAE using 0.5mm 2 area on die and 0.5mm 2 on package. Thanks to an offline static 2D DPD, an EVM as low as 4.1%at 17.3dBm modulated output power is achieved for a WIFI 2x20MHz, and an EVM of 1.8% at 14.3dBm for a WIFI 20MHz signal is achieved, enabling up to QAM-256 support.
A 28nm Low-Voltage Digital Power-Amplifier for QAM-256 WIFI Applications in 0.5mm2 Area w/ 2D Digital-Pre-Distortion and Package Combiner
Bevilacqua, Andrea
2018
Abstract
This paper presents a DPA design with a DAT power combiner drawn in the package metallization achieving 26.7dBm maximum output power at 25% PAE using 0.5mm 2 area on die and 0.5mm 2 on package. Thanks to an offline static 2D DPD, an EVM as low as 4.1%at 17.3dBm modulated output power is achieved for a WIFI 2x20MHz, and an EVM of 1.8% at 14.3dBm for a WIFI 20MHz signal is achieved, enabling up to QAM-256 support.
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