TY - GEN
T1 - An integrated full-duplex/FDD duplexer and receiver achieving 100MHz Bandwidth 58dB/48dB self-interference suppression using hybrid-analog-digital autonomous adaptation loops
AU - Cao, Yuhe
AU - Cao, Xuanzhen
AU - Seo, Hyungjoo
AU - Zhou, Jin
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/8
Y1 - 2020/8
N2 - This paper presents a 1.5-to-2 GHz CMOS electrical-balance duplexer and receiver supporting both frequency-division duplexing (FDD) and in-band full-duplex (IBFD) operations. The proposed multi-tap and multi-stage RF and analog self-interference cancellation adapts itself autonomously to a time-varying channel in real time using a new on-chip hybrid-analog-digital adaptation loop. A Gm-C-based reconfigurable frequency shift is utilized to support FDD operation. In measurement, 58dB and 48dB RF/analog self-interference suppression are achieved across a 100MHz bandwidth in the IBFD and the FDD mode, respectively. Using the proposed embedded adaptation loops, <50μs adaptation is achieved without any high-speed ADC or DSP.
AB - This paper presents a 1.5-to-2 GHz CMOS electrical-balance duplexer and receiver supporting both frequency-division duplexing (FDD) and in-band full-duplex (IBFD) operations. The proposed multi-tap and multi-stage RF and analog self-interference cancellation adapts itself autonomously to a time-varying channel in real time using a new on-chip hybrid-analog-digital adaptation loop. A Gm-C-based reconfigurable frequency shift is utilized to support FDD operation. In measurement, 58dB and 48dB RF/analog self-interference suppression are achieved across a 100MHz bandwidth in the IBFD and the FDD mode, respectively. Using the proposed embedded adaptation loops, <50μs adaptation is achieved without any high-speed ADC or DSP.
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U2 - 10.1109/IMS30576.2020.9223872
DO - 10.1109/IMS30576.2020.9223872
M3 - Conference contribution
AN - SCOPUS:85094179737
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 1203
EP - 1206
BT - IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE/MTT-S International Microwave Symposium, IMS 2020
Y2 - 4 August 2020 through 6 August 2020
ER -