TY - GEN
T1 - A 5GHz to 6GHz CMOS transmitter for full-duplex wireless with wideband digital cancellation
AU - Ginzberg, Nimrod
AU - Regev, Dror
AU - Tsodik, Genadiy
AU - Shilo, Shimi
AU - Ezri, Doron
AU - Cohen, Emanuel
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - This paper presents a quadrature balanced transmitter, assisted by a digital equalization and predistortion self-interference cancellation technique for Full-Duplex wireless applications. An analysis of design trade-offs between low receiver (Rx) loss and high transmitter (Tx) efficiency is laid out and demonstrated on a 5GHz to 6GHz class AB power amplifier implemented in 180nm CMOS. Wideband cancellation of >48dB and >57dB at 20dBm and 10dBm Tx output power, respectively, is measured in CW. Cancellation of >30dB for an actual 160MHz 802.11ac OFDM packet around a carrier frequency of 5.2GHz together with EVM of-33dB is demonstrated. Measured Tx power added efficiency (PAE) for concurrent Tx-SIC operation is 35% and 6.4% at peak and RMS (10dB backoff) power, respectively. Rx loss is lower than 1.6dB at RMS Tx power within the signal frequency band.
AB - This paper presents a quadrature balanced transmitter, assisted by a digital equalization and predistortion self-interference cancellation technique for Full-Duplex wireless applications. An analysis of design trade-offs between low receiver (Rx) loss and high transmitter (Tx) efficiency is laid out and demonstrated on a 5GHz to 6GHz class AB power amplifier implemented in 180nm CMOS. Wideband cancellation of >48dB and >57dB at 20dBm and 10dBm Tx output power, respectively, is measured in CW. Cancellation of >30dB for an actual 160MHz 802.11ac OFDM packet around a carrier frequency of 5.2GHz together with EVM of-33dB is demonstrated. Measured Tx power added efficiency (PAE) for concurrent Tx-SIC operation is 35% and 6.4% at peak and RMS (10dB backoff) power, respectively. Rx loss is lower than 1.6dB at RMS Tx power within the signal frequency band.
KW - full-duplex
KW - output impedance
KW - power amplifier
KW - self-interference cancellation
UR - http://www.scopus.com/inward/record.url?scp=85072256690&partnerID=8YFLogxK
U2 - 10.1109/RFIC.2019.8701827
DO - 10.1109/RFIC.2019.8701827
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AN - SCOPUS:85072256690
T3 - Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
SP - 87
EP - 90
BT - 2019 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2019
Y2 - 2 June 2019 through 4 June 2019
ER -