Estudio de la influencia de las librerías de RF en tecnología SiGe: aplicación en el diseño de LNA’s para WLAN
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This paper presents the study of the influence of RF librraries on the design of MMICs (Monolithic Microwave Integrated Circuits). Two low noise amplifiers (LNA’s) for the WLAN 802.11a standard have been designed using different SiGe Technologies: 0.4 μm CDR1 BiCMOS from Freescale and 0.2 μm SGB25VD from IHP. The LNA’s have been simulated and measured in order to verify the importance of the component models that the library offers. The comparison of both libraries show that the IHP models are more reliable at higher frequencies that the Freescale ones. It has also been noted the lack of a transmission line model for high frequency designs in both technologies although in this case the influence of these lines in the performance of the circuits is not too significant.
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