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A low-power down-converter that uses a passive current-commutating mixer for frequency translation, while sharing the bias current between the RF and baseband stages is presented. An active noise shaping network is implemented to reduce low-frequency noise at the output. Linearity is enhanced through the use of non-linear feedback. The design, implemented in a 0.18 μm CMOS technology, achieves conversion...
In this paper, a CMOS down-conversion mixer for UWB applications is presented. The mixer circuit is designed by using a TSMC 0.18 um RF CMOS technology, working at the 3.1 GHz-10.6 GHz frequency Range. The core of the mixer has been designed based on Gilbert cell architecture and uses a Current Bleeding method for increasing the linearity, decreasing direct noise and improvement of conversion gain...
This paper presents the analysis and design of a low power and highly linear mixer topology based on the differential derivative superposition method. The analysis focuses on both nonlinearity and noise performance. The linearisation mechanism is investigated in terms of Taylor series and Volterra series. A prototype mixer has been designed and is to be implemented in 0.18 mum CMOS technology. Simulation...
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