Title :
A multipath technique for canceling harmonics and sidebands in a wideband power upconverter
Author :
Shrestha, R. ; Mensink, E. ; Klumperink, E.A.M. ; Wienk, G. J M ; Nauta, B.
Author_Institution :
Twente Univ., Enschede
Abstract :
Switching mixers are power-efficient but produce unwanted harmonics and sidebands. A multipath technique to clean up the spectrum using digital circuits and mixers, but no filters, is applied to a 0.13mum CMOS power upconverter. The circuit delivers 8mW from dc to 2.4GHz with 11% drain efficiency, with spurs <-40dBc over more than 4 octaves in frequency, and consumes 228mW from a 1.2V supply
Keywords :
CMOS integrated circuits; convertors; harmonics suppression; mixers (circuits); 0 to 2.4 GHz; 0.13 micron; 1.2 V; 228 mW; 8 mW; CMOS power upconverter; digital circuits; harmonic cancellation; multipath technique; switching mixers; wideband power upconverter; Broadband amplifiers; Filtering; Frequency; Nonlinear circuits; Power harmonic filters; Power system harmonics; Signal generators; Switches; Transconductors; Wideband;
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0079-1
DOI :
10.1109/ISSCC.2006.1696237
