An LTV analysis of the frequency translational noise-cancelling receiver

David Murphy, Ahmad Mirzaei, Hooman Darabi, Mau-Chung Chang, Asad Abidi

研究成果: Article同行評審

19 引文 斯高帕斯(Scopus)

摘要

The recently proposed Frequency-Translational Noise-Cancelling receiver demonstrates exceptional out-of-band linearity, a low noise factor, and wideband operation. Fundamental to the receiver's performance is the use of two passive-mixer-based downconversion paths, which delays noise-cancelling until after baseband filtering. As a result, voltage gain at blocker frequencies can be avoided, but the benefits of noise cancelling (i.e., wideband operation and low noise) can be retained. Although a simplified LTI analysis is sufficient to understanding the basic noise properties of the system, such an analysis cannot yield accurate closed-form expressions because it neglects the many signal and noise folding terms introduced by the two passive mixers. In this work, a complete LTV analysis is presented, which accurately captures both the gain and noise performance of the noise-cancelling receiver. Simulation results verify the analysis.

原文English
文章編號6555948
頁(從 - 到)266-279
頁數14
期刊IEEE Transactions on Circuits and Systems I: Regular Papers
61
發行號1
DOIs
出版狀態Published - 1 一月 2014

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