Abstract | ||
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This paper presents a 12 bit split-array switched-capacitor power amplifier (SA-SCPA) to improve resolution of an SCPA and hence the linear dynamic range. An attenuation capacitor added between two sub-arrays allows a smaller ratio between the smallest and largest capacitors in the array, accommodating better matching. To compromise between efficiency and linearity, 4 binary bits are chosen for the LSB sub-array and 4 binary + 4 unary bits are chosen for the MSB sub-array. The SA-SCPA is designed and extracted, in a 130nm RF CMOS technology. It delivers a peak output power of 22.6dBm with a peak PAE of 30%. The linearity of the array is simulated using a 64 QAM, OFDM signal with 20 MHz bandwidth and the EVM is 3.8% while meeting the spectral mask. |
Year | DOI | Venue |
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2016 | 10.1109/SOCC.2016.7905426 | 2016 29th IEEE International System-on-Chip Conference (SOCC) |
Keywords | Field | DocType |
Class-D PA,Digital PA,EER,Switched-Capacitor PA,SCPA,Split Array DAC | Capacitor,Quadrature amplitude modulation,Linearity,12-bit,Spectral mask,Electronic engineering,CMOS,Engineering,Electrical engineering,Amplifier,Least significant bit | Conference |
ISBN | Citations | PageRank |
978-1-5090-1368-5 | 0 | 0.34 |
References | Authors | |
6 | 6 |
Name | Order | Citations | PageRank |
---|---|---|---|
Zhi-Dong Bai | 1 | 85 | 29.46 |
Dallas Johnson | 2 | 3 | 0.72 |
Ali Azam | 3 | 5 | 3.18 |
Anirban Saha | 4 | 0 | 0.34 |
Wen Yuan | 5 | 34 | 5.20 |
Jeffrey S. Walling | 6 | 163 | 19.89 |