Analog Crosstalk Cancellation for High Data Rate Communication Links
Paper i proceeding, 2025
In this work, a design of an analog I/Q crosstalk compensation circuit in 130 nm SiGe BiCMOS is proposed. The circuit consists of four baseband variable gain amplifiers based on Gilbert cells. As a proof of concept, a 20 Gbps QPSK input signal with high bidirectional crosstalk (20% and 30 %), equal to an error vector magnitude (EVM) of 25.1 % and signal-to-noise ratio (SNR) of 12.0 dB, was improved to EVM=16.1 % and SNR= 15.9 dB at the output. Unidirectional cross-talk up to 50%, was investigated, and at 50 % the EVM improved from 25.9 % to 18.6 %, and the SNR from 11.7 to 14.6 dB.
Författare
Frida Strömbeck
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
Herbert Zirath
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
2025 IEEE International Symposium on Circuits and Systems (ISCAS)
0271-4302 (ISSN) 2158-1525 (eISSN)
2025 IEEE International Symposium on Circuits and Systems (ISCAS)
London, United Kingdom,
London, United Kingdom,
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Infrastruktur
Kollberglaboratoriet
Ämneskategorier (SSIF 2025)
Annan elektroteknik och elektronik
Telekommunikation
DOI
10.1109/ISCAS56072.2025.11043397