Title :
Quadrature waveform generator with enhanced performances
Author :
Maloberti, F. ; Signorelli, M.
Author_Institution :
Dept. of Electron., Pavia Univ., Italy
Abstract :
A method to improve either amplitude matching and phase shift in RF quadrature waveform generators is presented. The used technique extends the RC-CR shift-phase approach and achieves a geometrical property of figures made by triangles. The method, implemented with a 0.8 /spl mu/m BiCMOS technology, allows us to improve the 900 MHz amplitude matching from 38% to 4% and to improve the phase error from 3/spl deg/ to 0.1.
Keywords :
BiCMOS digital integrated circuits; phase shifters; waveform generators; 0.8 micron; BiCMOS technology; RC-CR shift-phase approach; amplitude matching; phase error; phase shift; quadrature waveform generator; BiCMOS integrated circuits; Communication system control; Local oscillators; Modems; Radio frequency; Signal generators; Transceivers; Virtual colonoscopy; Virtual reality; Voltage;
Conference_Titel :
VLSI Circuits, 1998. Digest of Technical Papers. 1998 Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-4766-8
DOI :
10.1109/VLSIC.1998.688002
