TY - GEN
T1 - A 65 nm CMOS Switched-Capacitor Carrier Aggregation Transmitter
AU - Ginzberg, Nimrod
AU - Cohen, Emanuel
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/8
Y1 - 2020/8
N2 - This paper presents a new carrier aggregation transmitter architecture with high linearity performance based on series post-PA combining of two switched-capacitor power amplifiers (SCPA), each operating at a different carrier frequency. Linear operation is achieved through the low and digital code word independent output impedance of the SCPA, resulting in low nonlinear interaction between the SCPAs comprising the transmitter. The transmitter operates around the center frequency of 2.4 GHz with a 3 dB bandwidth of 600 MHz and achieves 18.5% peak PAE at a maximum output power of 19 dBm. Carrier to third-order intermodulation distortion product is >40 dBc at 9 dB power backoff within a carrier spacing range larger than 250 MHz. The chip was fabricated in TSMC's 65 nm CMOS, and it occupies an area of 1.6 mm2.
AB - This paper presents a new carrier aggregation transmitter architecture with high linearity performance based on series post-PA combining of two switched-capacitor power amplifiers (SCPA), each operating at a different carrier frequency. Linear operation is achieved through the low and digital code word independent output impedance of the SCPA, resulting in low nonlinear interaction between the SCPAs comprising the transmitter. The transmitter operates around the center frequency of 2.4 GHz with a 3 dB bandwidth of 600 MHz and achieves 18.5% peak PAE at a maximum output power of 19 dBm. Carrier to third-order intermodulation distortion product is >40 dBc at 9 dB power backoff within a carrier spacing range larger than 250 MHz. The chip was fabricated in TSMC's 65 nm CMOS, and it occupies an area of 1.6 mm2.
KW - Carrier aggregation
KW - Intermodulation distortion
KW - Linearization
KW - Switched Capacitors Power Amplifier
UR - http://www.scopus.com/inward/record.url?scp=85093958468&partnerID=8YFLogxK
U2 - 10.1109/RFIC49505.2020.9218428
DO - 10.1109/RFIC49505.2020.9218428
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AN - SCOPUS:85093958468
T3 - Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
SP - 115
EP - 118
BT - RFIC 2020 - 2020 IEEE Radio Frequency Integrated Circuits Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2020
Y2 - 4 August 2020 through 6 August 2020
ER -