@inproceedings{77fe405f754645ea9f9b6420803cad6b,
title = "Transmit-receive cross-modulation distortion correction in a 5-6GHz full duplex quadrature balanced CMOS RF front-end",
abstract = "In this work, we propose an analysis, characterization, and correction of transmit-receive cross-modulation (CM) distortion in a full duplex quadrature balanced CMOS RF front-end around the carrier frequency of 5.2 GHz. A theoretical model of the CM mechanism stemming from instantaneous variations in the power amplifiers' output impedance is laid out and verified in measurement. A two-dimensional digital post-distortion (2D-DPoD) algorithm is employed to linearize the CM distorted receive signal, in conjunction with wideband digital RF and baseband self-interference cancellation. The system was measured in a simultaneous transmit-receive operation using 802.11ac VHT20 signals at 10 dBm RMS Tx power and -17 dBm Rx power and achieves total Tx-Rx isolation >66 dB. The digital SIC and 2D-DPoD correct Rx EVM by 16 dB to a value of -32.5 dB.",
keywords = "2D-DPD, CMOS, Cross-modulation distortion, Full duplex, Post-distortion, Power amplifiers, Quadrature balanced transmitter, RF front-end, Simultaneous transmit-receive",
author = "Nimrod Ginzberg and Tomer Gidoni and Dror Regev and Emanuel Cohen",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE/MTT-S International Microwave Symposium, IMS 2020 ; Conference date: 04-08-2020 Through 06-08-2020",
year = "2020",
month = aug,
doi = "10.1109/IMS30576.2020.9224029",
language = "الإنجليزيّة",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1211--1214",
booktitle = "IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium",
address = "الولايات المتّحدة",
}