2018-04-202018-04-202009Becerra Álvarez, E.C., Sandoval Ibarra, F. y Rosa Arranz, J.M.d.l. (2009). Flexible CMOS low-noise amplifiers for beyond-3G wireless hand-held devices. Proceedings of SPIE, 7363, 1-12.1996-756X (impreso)0277-786X (electrónico)https://hdl.handle.net/11441/73268This paper explores the use of reconfigurable Low-Noise Amplifiers (LNAs) for the implementation of CMOS Radio Frequency (RF) front-ends in the next generation of multi-standard wireless transceivers. Main circuit strategies reported so far for multi-standard LNAs are reviewed and a novel flexible LNA intended for Beyond-3G RF hand-held terminals is presented. The proposed LNA circuit consists of a two-stage topology that combines inductive-source degeneration with PMOS-varactor based tuning network and a programmable load to adapt its performance to different standard specifications without penalizing the circuit noise and with a reduced number of inductors as compared to previous reported reconfigurable LNAs. The circuit has been designed in a 90-nm CMOS technology to cope with the requirements of the GSM, WCDMA, Bluetooth and WLAN (IEEE 802.11b-g) standards. Simulation results, including technology and packaging parasitics, demonstrate correct operation of the circuit for all the standards under study, featuring NF<2.8dB, S21>13.3dB and IIP3>10.9dBm, over a 1.85GHz-2.4GHz band, with an adaptive power consumption between 17mW and 22mW from a 1-V supply voltage. Preliminary experimental measurements are included, showing a correct reconfiguration operation within the operation band.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Low-Noise AmplifiersReconfigurable/adaptive RF CMOS circuitsMulti-standard wireless telecominfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1117/12.820911