Communication Dans Un Congrès Année : 2019

Low Complexity Architecture of N-Path Mixers for Low Power Application

Résumé

The complexity of harmonic rejection N-path mixer based receivers is studied in this paper. A solution to improve harmonic rejection without increasing the complexity is presented and compared with conventional LNA-first receivers. This solution is based on π-delayed driving signals that enable a N-path mixer to present the same harmonic rejection than its 2N-path counterparts while reducing by 2 the frequency of operation and showing a reduced number of differential gain stages and switches. A 5-path mixer is thus proposed. It allows rejecting up to the 8 th harmonic with only 3 differential gain stages whereas only the 6 th harmonic would be rejected with conventional topologies having the same number of amplifier stages.
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Dates et versions

hal-04453736 , version 1 (12-02-2024)

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Ali Alshakoush, Thierry Taris, E Lauga-Larroze, Florence Podevin, S Subias, et al.. Low Complexity Architecture of N-Path Mixers for Low Power Application. 17th IEEE International New Circuits and Systems Conference (NEWCAS 2019), IEEE, Jun 2019, Munich, Germany. ⟨10.1109/newcas44328.2019.8961234⟩. ⟨hal-04453736⟩
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