Fully integrated differential VCO with buffer amplifier using 0.35 3μm SiGe BiCMOS for C-Band wireless RE transceiver

Author

Kim, Young Gi ; Kim, Hyun Soo ; Bae, Lung Hyung ; Oh, Jae Hyun ; Kim, Chanp Woo

Author_Institution

Dept. of Data Commun., Anyang Univ., South Korea

fYear

2003

fDate

10-13 Aug. 2003

Firstpage

297

Lastpage

300

Abstract

This paper addresses fully integrated positive tuning differential 4.7 GHz VCO fabricated in 0.35 μm SiGe BiCMOS process with f_t of 45 GHz utilizing ground shield layer structure upon low resistive silicon substrate. VCO circuit consists of a cross-coupled differential pair with a parallel resonator connected between the collector nodes and a pair of emitter-following buffer amplifiers. The VCO achieves -5.17 dBm output power with positive tuning frequency range of 509 MHz by positive voltage tuning of 3 V and exhibits -107 dBc/Hz phase noise at 1 MHz away from 4.64 GHz oscillating frequency. The oscillator draws 18 mA current from a 3V supply and occupies 0.67 mm by 0.97 mm die area.

Keywords

BiCMOS integrated circuits; CMOS integrated circuits; buffer circuits; circuit tuning; phase noise; radiofrequency amplifiers; resonators; semiconductor materials; silicon compounds; substrates; transceivers; voltage-controlled oscillators; 0.35 mum; 1 MHz to 4.64 GHz; 18 mA; 3 V; 4.64 GHz; 45 GHz; 509 MHz; C-band wireless RE transceiver; SiGe BiCMOS; SiGe-Si; buffer amplifier; collector nodes; emitter-following buffer amplifiers; fully integrated differential VCO; ground shield layer structure; low resistive silicon substrate; oscillating frequency; parallel resonator; phase noise; positive tuning frequency; positive voltage tuning; voltage controlled oscillator; BiCMOS integrated circuits; Circuit optimization; Differential amplifiers; Frequency; Germanium silicon alloys; Power generation; Silicon germanium; Transceivers; Tuning; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 2003. RAWCON '03. Proceedings

Print_ISBN

0-7803-7829-6

Type

conf

DOI

10.1109/RAWCON.2003.1227951

Filename

1227951