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Título: | MOST moderate-weak-inversion region as the optimum design zone for CMOS 2.4-GHz CS-LNAs |
Autor: | Fiorelli, Rafaella CSIC ORCID; Silveira, Fernando; Peralías, E. CSIC ORCID | Palabras clave: | Low power, gm/ID Optimization Weak inversion noise figure Design methodology Pareto optimal Moderate inversion CS-LNA |
Fecha de publicación: | 2014 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | IEEE Transactions on Microwave Theory and Techniques 62(3): 556-566 (2014) | Resumen: | In this paper, the MOS transistor (MOST) moderate-inversion (MI)-weak-inversion (WI) region is shown to be the optimum design zone for CMOS 2.4-GHz common-source low-noise amplifiers (CS-LNAs) focused on low power consumption applications. This statement is supported by a systematic study where the MOST is analyzed in all-inversion regions using an exhaustive CS-LNA noise-figure (NF)-power-consumption optimization technique with power gain constraint. Effects of bias choke resistance and MOST capacitances are carefully included in the study to obtain more accurate results, especially for the MI-WI region. NF, power consumption, and gain versus the inversion region are described with design space maps, providing the designer with a deep insight of their tradeoffs. The Pareto-optimal design frontier obtained by calculation-showing the MI-WI region as the optimum design zone-is reverified by extensive electrical simulations of a high number of designs. Finally, one 90-nm 2.4-GHz CS-LNA Pareto optimal design is implemented. It achieves the best figure of merit considering under-milliwatt CS-LNAs published designs, consuming 684 μW, an NF of 4.36 dB, a power gain of 9.7 dB, and a third-order intermodulation intercept point of-4 dBm with load and source resistances of 50 Ω. © 2014 IEEE. | Versión del editor: | http://dx.doi.org/10.1109/TMTT.2014.2303476 | URI: | http://hdl.handle.net/10261/102981 | DOI: | 10.1109/TMTT.2014.2303476 | Identificadores: | doi: 10.1109/TMTT.2014.2303476 issn: 0018-9480 |
Aparece en las colecciones: | (IMSE-CNM) Artículos |
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Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
MOST Moderate.pdf | 3,03 MB | Adobe PDF | Visualizar/Abrir |
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