Title :
Fully-integrated bipolar differential VCOs at 2.95 and 5.7 GHz
Author :
Loo, Sek-Yuen ; Colpitts, Bruce G. ; Luke, David McG
Author_Institution :
Dept. of Electr. & Comput. Eng., New Brunswick Univ., Fredericton, NB, Canada
Abstract :
Two fully integrated differential Si bipolar voltage controlled oscillators (VCOs) are described. The VCOs are implemented at 2.95 GHz and at 5.7 GHz. The measured tuning range is 11.5% for the 2.95 GHz and 6.7% for the 5.7 GHz VCO with a tuning voltage from 0 to 3 V. The measured phase noise at 3 MHz offset from the carrier is -111 dBc/Hz for the 2.95 GHz design and -105 dBc/Hz for the 5.7 GHz design. Both VCOs operate from a standard 3 V supply and the power consumption for both designs is approximately 30 mW with an average output power of -11 dBm. All VCOs are implemented in a fT=25 GHz bipolar process
Keywords :
UHF bipolar transistors; UHF oscillators; bipolar integrated circuits; integrated circuit measurement; microwave bipolar transistors; microwave oscillators; voltage-controlled oscillators; 0 to 3 V; 2.95 GHz; 25 GHz; 3 MHz; 5.7 GHz; SHF; Si; UHF; average output power; bipolar process; elemental semiconductor; fully-integrated bipolar differential VCO; measured phase noise; measured tuning range; measurement results; power consumption; tuning voltage; voltage controlled oscillators; Energy consumption; Feedback; Frequency; Phase noise; RLC circuits; Resonance; Ring oscillators; Tuning; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Electrical and Computer Engineering, 2000 Canadian Conference on
Conference_Location :
Halifax, NS
Print_ISBN :
0-7803-5957-7
DOI :
10.1109/CCECE.2000.849575
