Modeling and analysis of aliasing image spurs problem in digital-RF-converter-based IQ modulators
2013 (English)In: ISCAS 2013, IEEE , 2013, 578-581 p.Conference paper (Refereed)
In this work, we present an analytical study of aliasing image spurs problem in digital-RF modulators. The inherent finite image rejection ratio of this types modulators is conceptually discussed. A pulse amplitude modulation (PAM) model of the converter is used in the theoretical discussion. Behavioral level simulation of the digital-RF converter model is included. Finite image rejection is a limiting issue in this architecture, and Digital-IF mixing is used to alleviate the problem which is also reviewed and simulated.
Place, publisher, year, edition, pages
IEEE , 2013. 578-581 p.
, IEEE International Symposium on Circuits and Systems. Proceedings, ISSN 0271-4302
IdentifiersURN: urn:nbn:se:liu:diva-100896DOI: 10.1109/ISCAS.2013.6571908ISI: 000332006800142ISBN: 978-1-4673-5760-9OAI: oai:DiVA.org:liu-100896DiVA: diva2:664207
IEEE International Symposium on Circuits and Systems (ISCAS 2013), 19-23 May 2013, Beijing, China