107409 20240301150735.0 doi 10.3390/electronics10091105 sideral 124863 ART-2021-124863 eng Martínez Pérez, Antonio Dionisio Universidad de Zaragoza (orcid)0000-0001-5402-1251 Analysis of Non-Idealities on CMOS Passive Mixers 2021 Access copy available to the general public Unrestricted In the current state of the art, WiFi-alike standards require achieving a high Image Rejection Ratio (IRR) while having low power consumption. Thus, quadrature structures based on passive ring mixers offer an attractive and widely used solution, as they can achieve a high IRR while being a passive block. However, it is not easy for the designer to know when a simple quadrature scheme is enough and when they should aim for a double quadrature structure approach, as the latter can improve the performance at the cost of requiring more area and complexity. This study focuses on the IRR, which crucially depends on the symmetry between the I and Q branches. Non-idealities (component mismatches, parasitics, etc.) will degrade the ideal balance by affecting the mixer and/or following/previous stages. This paper analyses the effect of imbalances, providing the constraints for obtaining a 40 dB IRR in the case of a conversion from a one-hundred-megahertz signal to the five-gigahertz range (upconversion) and vice versa (downconversion) for simple and double quadrature schemes. All simulations were carried out with complete device models from 65 nm standard CMOS technology and also a post-layout Monte Carlo analysis was included for mismatch analysis. The final section includes guidelines to help designers choose the most adequate scheme for each case. info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2017-85867-R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.69 2021 COMPUTER SCIENCE, INFORMATION SYSTEMS 100 / 163 = 0.613 2021 Q3 T2 PHYSICS, APPLIED 82 / 161 = 0.509 2021 Q3 T2 ENGINEERING, ELECTRICAL & ELECTRONIC 139 / 274 = 0.507 2021 Q3 T2 0.59 2021 Computer Networks and Communications 2021 Q2 Signal Processing 2021 Q2 Hardware and Architecture 2021 Q2 Control and Systems Engineering 2021 Q2 3.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Aznar, Francisco Universidad de Zaragoza (orcid)0000-0003-3629-0540 Royo, Guillermo Universidad de Zaragoza (orcid)0000-0002-2796-7022 Celma, Santiago Universidad de Zaragoza (orcid)0000-0003-0182-7723 5008 250 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Electrónica 10, 9 (2021), 1105 [10 pp.] Electronics (Basel) Electronics 2079-9292 2209366 http://zaguan.unizar.es/record/107409/files/texto_completo.pdf Versión publicada 2796740 http://zaguan.unizar.es/record/107409/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:107409 articulos driver 2024-03-01-15:05:53 ARTICLE