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
Proceedings - IEEE International Symposium on Circuits and Systems
02714310 (ISSN)
9798350356830 (ISBN)
2025 IEEE International Symposium on Circuits and Systems (ISCAS)
London, United Kingdom,
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Infrastruktur
Kollberglaboratoriet
Ämneskategorier (SSIF 2025)
Annan elektroteknik och elektronik
Telekommunikation
DOI
10.1109/ISCAS56072.2025.11043397
ISBN
9798350356830