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A 1.5 V, wide band 3 GHz, CMOS quadrature direct up-converter for multi-mode wireless communications

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3 Author(s)
Borremans, M. ; ESAT, Katholieke Univ., Leuven, Heverlee, Belgium ; Steyaert, M. ; Yoshitomi, T.

This paper presents a 1.5 V, full CMOS, quadrature, direct upconversion mixer for multi-mode wireless communications. The chip includes both a wide band polyphase filter, the linear quadrature up-conversion mixers and a single-ended output stage. More than 35 dBc mirror suppression has been measured over the 700 MHz to 3 GHz frequency range, without any additional trimming or tuning. Any distortion or intermodulation component is lower than -32 dBc and the LO feedthrough is below -35 dBc up to 3 GHz. The chip has been realized in standard 0.25 μm CMOS technology

Published in:

Custom Integrated Circuits Conference, 1998. Proceedings of the IEEE 1998

Date of Conference:

11-14 May 1998