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- W2005289316 abstract "The image-reject receiver is an architecture that ideally passes the desired signal and rejects its image. However, due to mismatches in the signal path, the image-rejection ratio (IRR) achieved in practice is quite limited. This paper presents an analog technique that automatically calibrates phase and gain errors and effectively improves the IRR of image-reject receivers. The feasibility of the calibration scheme is demonstrated by a 2-GHz prototype image-reject receiver design using a Weaver architecture, implemented in a 0.25-/spl mu/m CMOS technology. With an initial phase and gain mismatches of 5/spl deg/ and 1 dB respectively in the signal path, simulation results show that the calibration process converges very fast and an IRR of 66 dB is achieved after the calibration. Running from a single 2.7-V supply, the calibration system incurs only 9 mW power dissipation." @default.
- W2005289316 created "2016-06-24" @default.
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- W2005289316 date "2006-04-28" @default.
- W2005289316 modified "2023-09-27" @default.
- W2005289316 title "An Analog Mismatch Calibration System for Image-Reject Receivers" @default.
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- W2005289316 doi "https://doi.org/10.1109/ecwt.2005.1617698" @default.
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