A Dual Band, Wide Tuning Range CMOS Voltage Controlled Oscillator for Multi-Band Radio
- 1 June 2007
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 15292517,p. 595-598
- https://doi.org/10.1109/rfic.2007.380954
Abstract
A novel multi-band VCO is presented, using a double-tuned, current-driven transformer load The dual frequency range oscillator (low band and high band), is based on the ON/OFF switching of current in the secondary port of the transformer. The concept is validated through measurement results from a fabricated prototype in 0.25μm CMOS technology. The VCO has a measured tuning range of 1.94 to 2.55GHz for the low-frequency band and 3.6 to 4.77GHz for the high-frequency band. It draws a current of 1.0mA from 1.8V supply with a measured phase noise of -116dBc/Hz at 1MHz offset from 2.55GHz carrier. For the high frequency band, it draws 7.5mA from the same supply with a phase noise of -106dBc/Hz at 1MHz offset from 4. 77GHz carrier.Keywords
This publication has 8 references indexed in Scilit:
- A low-phase-noise and low-power multiband CMOS voltage-controlled oscillatorIEEE Journal of Solid-State Circuits, 2005
- A 1.8-GHz LC VCO with 1.3-GHz tuning range and digital amplitude calibrationIEEE Journal of Solid-State Circuits, 2005
- Reconfigurable RFICs in Si-based technologies for a compact intelligent RF front-endIEEE Transactions on Microwave Theory and Techniques, 2005
- Reconfigurable MEMS-enabled LC-tank for multi-band CMOS oscillatorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Design of wide-band cmos vco for multiband wireless lan applicationsIEEE Journal of Solid-State Circuits, 2003
- A 1.8-v 6/9-GHz reconfigurable dual-band quadrature LC VCO in SiGe BiCMOS technologyIEEE Journal of Solid-State Circuits, 2003
- A 900-MHz 1.5-V CMOS voltage-controlled oscillator using switched resonators with a wide tuning rangeIEEE Microwave and Wireless Components Letters, 2003
- Concepts and methods in optimization of integrated LC VCOsIEEE Journal of Solid-State Circuits, 2001