When using electrical-balance duplexers (EBDs) to provide RF self interference cancellation for in band full duplex, in-band distortion produced by nonlinear CMOS switches in the duplexer cause distortion that limits the headroom for additional self interference cancellation in subsequent cancellation schemes in the transceiver. A prototype EBD is fabricated in 0.18µm SOI CMOS to investigate the dynamic range limitations of a transceiver architecture for next generation wireless systems that supports in band full duplex and legacy FDD. Measurements show -85dBm in band distortion at +10dBm TX input power, enough for short-range links at 10MHz BW.
van Liempd, B, Hershberg, B, Debaillie, B, Wambacq, P & Craninckx, J 2015, An Electrical-Balance Duplexer for In-Band Full-Duplex with <-85dBm In-Band Distortion at +10dBm TX-power. in Proceedings of the 41th ESSCIRC. IEEE, European Solid-State Circuits Conference, Graz, Austria, 14/09/15.
van Liempd, B., Hershberg, B., Debaillie, B., Wambacq, P., & Craninckx, J. (2015). An Electrical-Balance Duplexer for In-Band Full-Duplex with <-85dBm In-Band Distortion at +10dBm TX-power. In Proceedings of the 41th ESSCIRC IEEE.
@inproceedings{4aa75482943c43b6ac5dc213dff69ef0,
title = "An Electrical-Balance Duplexer for In-Band Full-Duplex with <-85dBm In-Band Distortion at +10dBm TX-power",
abstract = "When using electrical-balance duplexers (EBDs) to provide RF self interference cancellation for in band full duplex, in-band distortion produced by nonlinear CMOS switches in the duplexer cause distortion that limits the headroom for additional self interference cancellation in subsequent cancellation schemes in the transceiver. A prototype EBD is fabricated in 0.18µm SOI CMOS to investigate the dynamic range limitations of a transceiver architecture for next generation wireless systems that supports in band full duplex and legacy FDD. Measurements show -85dBm in band distortion at +10dBm TX input power, enough for short-range links at 10MHz BW.",
keywords = "In-band full-duplex, electrical-balance duplexer, multi-tone test, self-interference, cancellation",
author = "{van Liempd}, Barend and Benjamin Hershberg and Bj{\"o}rn Debaillie and Piet Wambacq and J. Craninckx",
year = "2015",
month = sep,
day = "14",
language = "English",
isbn = "978-1-4673-7470-5",
booktitle = "Proceedings of the 41th ESSCIRC",
publisher = "IEEE",
note = "European Solid-State Circuits Conference ; Conference date: 14-09-2015 Through 18-09-2015",
}