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This paper presents a digital power amplifier with two cores that are power combined for a Psat of +32.5dBm. Assisted by an on-chip digital pre-distortion, a transmitted output power of +26.8dBm for 802.11g 54 Mbps 64-QAM is achieved. This is the highest reported linear output power for a digital power amplifier designed for 802.11b/g/n applications in bulk 28nm CMOS. A total area of 0.36mm2 is used...
A dual band (2G/5G) IEEE 802.11b/g/n/ac wide-band AM-AM envelope feedback power amplifier with digital pre-distortion is demonstrated in 40nm CMOS. This architect effectively improves both EVM and spectrum mask up to 20.9dBm in 40MHz bandwidth at 2G and 17.2dBm in 80MHz bandwidth in 5G. In addition, comparing to the conventional class AB PA, the power consumption is significantly reduced by 33% at...
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