Dual mixer downconversion architecture using complex mixing signals: enabling solutions for software defined radios | IEEE Conference Publication | IEEE Xplore

Dual mixer downconversion architecture using complex mixing signals: enabling solutions for software defined radios


Abstract:

A dual mixer architecture using complex mixing functions to perform RF downconversion is described. This architecture eliminates the need for the image-reject and IF filt...Show More

Abstract:

A dual mixer architecture using complex mixing functions to perform RF downconversion is described. This architecture eliminates the need for the image-reject and IF filters present in the heterodyne architecture, while achieving better LO leakage, 1/f noise. and second-order intercept performance than the direct conversion architecture. This architecture, implemented in a 1.8 V, 0.18 /spl mu/m CMOS process, achieves a maximum IIP2 of 85 dBm, a baseband 1/f noise corner frequency of less than 100 kHz, a LO-RF leakage equaling -138 dBm, and an operating frequency ranging from 400 MHz to 2.5 GHz.
Date of Conference: 15-15 May 2002
Date Added to IEEE Xplore: 07 August 2002
Print ISBN:0-7803-7250-6
Conference Location: Orlando, FL, USA

References

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