TY - GEN
T1 - 500 W Three-way GaN Doherty Power Amplifier for Sub-6 GHz 5G New Radio Base Transceiver Systems
AU - Kang, Hyunuk
AU - Choi, Woojin
AU - Kim, Inan
AU - Lee, Dongoo
AU - Yang, Youngoo
N1 - Publisher Copyright:
© 2021 EuMA.
PY - 2021/1/12
Y1 - 2021/1/12
N2 - This paper presents a three-way Doherty power amplifier (DPA) using a broadband load network for the wideband 5G new radio (NR) signal. The broadband load network was proposed for bandwidth extension using a 180° quasi-lumped transmission line (TL) including the internal components of a high-power packaged transistor and the optimized impedance transformation ratio (ITR) for each section of the load network. The proposed three-way DPA was designed using 200 W GaN-HEMTs for the carrier and two peaking amplifiers at a frequency range from 3.6 to 3.8 GHz. For a two-carrier 5G NR signal with a signal bandwidth of 200 MHz and a peak-to-average power ratio (PAPR) of 9.5 dB, the implemented DPA exhibited a drain efficiency (DE) of 37.7% and an adjacent channel leakage power ratio (ACLR) of -44.2 dBc after a digital pre-distortion (DPD) at an average output power of 47.5 dBm.
AB - This paper presents a three-way Doherty power amplifier (DPA) using a broadband load network for the wideband 5G new radio (NR) signal. The broadband load network was proposed for bandwidth extension using a 180° quasi-lumped transmission line (TL) including the internal components of a high-power packaged transistor and the optimized impedance transformation ratio (ITR) for each section of the load network. The proposed three-way DPA was designed using 200 W GaN-HEMTs for the carrier and two peaking amplifiers at a frequency range from 3.6 to 3.8 GHz. For a two-carrier 5G NR signal with a signal bandwidth of 200 MHz and a peak-to-average power ratio (PAPR) of 9.5 dB, the implemented DPA exhibited a drain efficiency (DE) of 37.7% and an adjacent channel leakage power ratio (ACLR) of -44.2 dBc after a digital pre-distortion (DPD) at an average output power of 47.5 dBm.
KW - 5G new radio
KW - broadband load network
KW - GaN HEMT
KW - Three-way Doherty power amplifier
UR - https://www.scopus.com/pages/publications/85100927217
U2 - 10.23919/EuMC48046.2021.9338210
DO - 10.23919/EuMC48046.2021.9338210
M3 - Conference contribution
AN - SCOPUS:85100927217
T3 - 2020 50th European Microwave Conference, EuMC 2020
SP - 312
EP - 315
BT - 2020 50th European Microwave Conference, EuMC 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 50th European Microwave Conference, EuMC 2020
Y2 - 12 January 2021 through 14 January 2021
ER -