A fully integrated UMTS receiver front-end comprising LNA, mixers, VGAs, double frequency VCO, second harmonic injection locking dividers for quadrature generation, has been realized using a direct conversion architecture in a 0.18µm CMOS technology. Measured performances are: +48dBm IIP2, -2dBm IIP3, 5.6dB NF, -156.8dBc/Hz phase noise at 135MHz offset. The chip draws only 21mA from a 1.8V supply.
A Direct Conversion CMOS Receiver Front-End with on-chip LO for UMTS
GATTA, FRANCESCO;MANSTRETTA, DANILO;ROSSI, PAOLO;SVELTO, FRANCESCO
2002-01-01
Abstract
A fully integrated UMTS receiver front-end comprising LNA, mixers, VGAs, double frequency VCO, second harmonic injection locking dividers for quadrature generation, has been realized using a direct conversion architecture in a 0.18µm CMOS technology. Measured performances are: +48dBm IIP2, -2dBm IIP3, 5.6dB NF, -156.8dBc/Hz phase noise at 135MHz offset. The chip draws only 21mA from a 1.8V supply.File in questo prodotto:
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