A wideband IMRR improving quadrature mixer/LO generator
作者： M. Steyaert , P. Vancorenland
DOI:
关键词: Quadrature modulation 、 Polyphase system 、 Baseband 、 Electrical engineering 、 Bandwidth (signal processing) 、 Image response 、 Signal generator 、 Wideband 、 Electronic engineering 、 Quadrature filter 、 Engineering
摘要: This paper describes the effect of non-idealities in a quadrature mixer system on Image Rejection Ratio. It discusses ways to compensate for phase and amplitude errors LO signals. presents simple easy way generate signals from first order polyphase filter with greatly reduced resulting an IMRR bandwidth more than factor 20 larger itself. The chip itself can be used as generator or mixer.
参考文章(1)
M. Steyaert, M. Borremans, J. Janssens, B. de Muer, I. Itoh, J. Craninckx, J. Crols, E. Morifuji, S. Momose, W. Sansen, A single-chip CMOS transceiver for DCS-1800 wireless communications international solid-state circuits conference. pp. 48- 49 ,(1998) , 10.1109/ISSCC.1998.672370