TY - GEN
T1 - A highly linear and efficient 28 GHz stacked power amplifier for 5G using analog predistortion in a 130 nm BiCMOS process
AU - Potschka, Julian
AU - Dietz, Marco
AU - Kolb, Katharina
AU - Maiwald, Tim
AU - Breun, Sascha
AU - Ackermann, Thomas
AU - Ferling, Dieter
AU - Hagelauer, Amelie
AU - Weigel, Robert
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - In this paper a highly linear, analog predistorted 28 GHz stacked power amplifier (PA) for 5G is presented. A 130 nm BiCMOS process is used for the circuit realization. The usage of a diode predistorter for analog predistortion is investigated for the stacked PA design and compared to a circuit without predistortion. It is shown, that the linearity of the stacked PA is significantly improved compared to a conventional biasing topology at almost no additional layout size. The measurement shows an overall large signal gain of 14.6 dB and the simulated power added efficiency (PAE) reaches 26 %. The circuit yields a measured input-referred 1 dB compression point (P1dB) of 1.5 dBm. Hence, the amplifier is able to provide 16 dBm output power at PDC=40mW. The simulated circuit performance fits well with the measured results.
AB - In this paper a highly linear, analog predistorted 28 GHz stacked power amplifier (PA) for 5G is presented. A 130 nm BiCMOS process is used for the circuit realization. The usage of a diode predistorter for analog predistortion is investigated for the stacked PA design and compared to a circuit without predistortion. It is shown, that the linearity of the stacked PA is significantly improved compared to a conventional biasing topology at almost no additional layout size. The measurement shows an overall large signal gain of 14.6 dB and the simulated power added efficiency (PAE) reaches 26 %. The circuit yields a measured input-referred 1 dB compression point (P1dB) of 1.5 dBm. Hence, the amplifier is able to provide 16 dBm output power at PDC=40mW. The simulated circuit performance fits well with the measured results.
KW - 5G
KW - Analog predistortion
KW - Power amplifier
UR - http://www.scopus.com/inward/record.url?scp=85082984930&partnerID=8YFLogxK
U2 - 10.1109/APMC46564.2019.9038828
DO - 10.1109/APMC46564.2019.9038828
M3 - Conference contribution
AN - SCOPUS:85082984930
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
SP - 920
EP - 922
BT - Proceedings of the 2019 IEEE Asia-Pacific Microwave Conference, APMC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Asia-Pacific Microwave Conference, APMC 2019
Y2 - 10 December 2019 through 13 December 2019
ER -