Title :
A 5-GHZ Low-Power Series-Coupled BiCMOS Quadrature VCO With Wide Tuning Range
Author :
Kakani, Vasanth ; Dai, Fa Foster ; Jaeger, Richard C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Auburn Univ., AL
fDate :
6/1/2007 12:00:00 AM
Abstract :
This letter presents a novel quadrature voltage controlled oscillator (QVCO) implemented in a 47-GHz SiGe BiCMOS technology. The QVCO is a serially coupled LC VCO that utilizes SiGe heterojunction bipolar transistors for oscillation and metal oxide semiconductor field effect transistors for coupling. The SiGe BiCMOS QVCO prototype achieves about 14.6% tuning range from 4.3 to 5GHz. The phase noise of the QVCO is measured as -114.3 dBc/Hz at 2-MHz offset. The 5-GHz QVCO core consumes 6-mA current from a 3.3-V power supply and occupies 0.88mm2 area
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; MMIC; MOSFET; coupled circuits; heterojunction bipolar transistors; low-power electronics; millimetre wave oscillators; phase noise; voltage-controlled oscillators; 3.3 V; 4.3 to 5 GHz; 47 GHz; 6 mA; BiCMOS technology; SiGe; heterojunction bipolar transistors; low-power series-coupled BiCMOS quadrature VCO; metal oxide semiconductor field effect transistors; phase noise; serially coupled LC VCO; voltage controlled oscillator; BiCMOS integrated circuits; FETs; Germanium silicon alloys; Heterojunction bipolar transistors; Noise measurement; Phase noise; Prototypes; Silicon germanium; Tuning; Voltage-controlled oscillators; BiCMOS; SiGe; oscillator; phase noise; quadrature voltage controlled oscillator (QVCO);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.897800
