Digital Adaptive IIP2 Calibration Scheme for CMOS Downconversion Mixers
IEEE Journal of Solid-State Circuits（2008）
摘要
This paper presents a cancellation scheme of second order intermodulation distortion based on adaptive digital calibration of the RF downconversion mixer. The system utilizes a low-complexity LMS-based equalizer, which correlates differential mode distortion with common mode distortion to estimate optimum settings of the analog IP2 calibration circuit. A tunable IQ mixer prototype, fabricated in a...
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关键词
Calibration,Intermodulation distortion,Radio frequency,Tunable circuits and devices,Integrated circuit technology,Filtering,Band pass filters,CMOS technology,Receivers,1f noise
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