Title :
An Integrated 5 GHz Wideband Quadrature Modem in SiGe:C BiCMOS Technology
Author :
Schmalz, K. ; Herzel, F. ; Piz, M.
Author_Institution :
IHP, Frankfurt
Abstract :
This paper presents a wideband I/Q upconverter and an I/Q downconverter for the 5 GHz band, which are integrated with a programmable 5 GHz phase-locked loop for I/Q generation. The quadrature signals are derived from a 10 GHz CMOS VCO followed by a bipolar frequency divider. The image rejection of the upconverter is as low as -38 dBc for an input frequency of 100 MHz. Phase noise at 1 MHz at the upconverter output is below -112 dBc/Hz. The two chips were produced in a 0.25 mum SiGe BiCMOS technology. They will be part of an integrated heterodyne 60 GHz wideband transceiver with 1 Gbit/s data rate
Keywords :
BiCMOS integrated circuits; CMOS integrated circuits; frequency dividers; modems; phase locked loops; phase noise; silicon compounds; transceivers; voltage-controlled oscillators; wireless LAN; 0.25 micron; 1 Gbit/s; 10 GHz; 100 MHz; 5 GHz; 60 GHz; BiCMOS technology; CMOS VCO; SiGe:C; bipolar frequency divider; image rejection; integrated heterodyne wideband transceiver; integrated wideband quadrature modem; programmable phase-locked loop; quadrature signals; wideband I/Q downconverter; wideband I/Q upconverter; wireless LAN; BiCMOS integrated circuits; CMOS technology; Frequency conversion; Germanium silicon alloys; Modems; Phase locked loops; Phase noise; Silicon germanium; Voltage-controlled oscillators; Wideband; SiGe BiCMOS; quadrature downconverter; quadrature upconverter; wideband transceiver; wireless LAN;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281438
