TY - GEN
T1 - A Polynomial Analog Baseband Predistorter for Compensation of Wireless Amplifier's Distortion
AU - Kouhini, Sepideh Mohammadi
AU - Alizadeh Jarchlo, Elnaz
AU - Khademi, Sasan
AU - Ghassemlooy, Zabih
AU - Alves, Luis Nero
N1 - Funding information: This work was supported by a project called APIC (Analog Predistorter in Integrated Circuit), funded by the Institute Telecommunication of Aveiro and finalized during the H2020 VisIon 764461 project.
PY - 2020/7/20
Y1 - 2020/7/20
N2 - This paper presents a new analog polynomial pre-distortion circuit using 350nm CMOS technology to reduce the distortion of the power amplifier in wireless communication systems. The proposed pre-distortion circuit uses the polynomial approach. The coefficients of the polynomial are controlled by multiplying them with sufficient digit defined through the indirect learning process to provide best practice linearization. Circuit level simulation of the proposed circuit is using Cadence DFW II is used as proof of concept. The simulation set-up comprises a power amplifier, excited with a four carrier GSM signal, pre-distorted by the proposed circuit. Simulation results show that using the pre-distortion circuit the 3rd order intermodulation distortion is reduced on average by 12 and 16 dB.
AB - This paper presents a new analog polynomial pre-distortion circuit using 350nm CMOS technology to reduce the distortion of the power amplifier in wireless communication systems. The proposed pre-distortion circuit uses the polynomial approach. The coefficients of the polynomial are controlled by multiplying them with sufficient digit defined through the indirect learning process to provide best practice linearization. Circuit level simulation of the proposed circuit is using Cadence DFW II is used as proof of concept. The simulation set-up comprises a power amplifier, excited with a four carrier GSM signal, pre-distorted by the proposed circuit. Simulation results show that using the pre-distortion circuit the 3rd order intermodulation distortion is reduced on average by 12 and 16 dB.
KW - Analog pre-distortion
KW - linearization
KW - polynomial model
KW - power amplifier
UR - https://www.scopus.com/pages/publications/85097646798
U2 - 10.1109/CSNDSP49049.2020.9249571
DO - 10.1109/CSNDSP49049.2020.9249571
M3 - Conference contribution
AN - SCOPUS:85097646798
SN - 9781728160511
T3 - 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020
SP - 841
EP - 846
BT - 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020
PB - IEEE
CY - Piscataway, NJ
T2 - 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020
Y2 - 20 July 2020 through 22 July 2020
ER -