CMOS wireless transceiver design
CMOS wireless transceiver design
Wireless CMOS frequency synthesizer design
Wireless CMOS frequency synthesizer design
RF MEMS Tunable Inductor Using Bimorph Microactuators
ICMENS '05 Proceedings of the 2005 International Conference on MEMS,NANO and Smart Systems
ACM Journal on Emerging Technologies in Computing Systems (JETC)
RF System Design of Transceivers for Wireless Communications
RF System Design of Transceivers for Wireless Communications
On the Applicability of Single-Walled Carbon Nanotubes as VLSI Interconnects
IEEE Transactions on Nanotechnology
Low power current-mode voltage controlled oscillator for 2.4GHz wireless applications
Computers and Electrical Engineering
Low-power CMOS LC QVCO using zero-biased transistor coupling of MWCNT network-based VCO structure
Microelectronics Journal
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This paper focuses on the use of a high-Q Multi-Wall Carbon Nano-Tube (MWCNT)-based pulse-shaped inductor in the implementation of an LC differential voltage-controlled oscillator (LCVCO). The topology integrates a micro-scaled capacitor and a MWCNT network-based inductor together with the CMOS circuits. The CMOS circuits were designed to enhance the quality factor and to control the oscillation amplitude. The high quality factor of the inductor improves the overall quality factor and phase noise of the oscillator. The measurement results show that the LCVCO operates at 2.3982GHz and achieves a phase noise of -133.3dBc/Hz at 1MHz away from the carrier frequency. The VCO produces frequency tuning from 2.07GHz to 2.77GHz (29.16%) with an ultra low power consumption of 1.7mW from a 0.6V supply voltage. The output power level of the VCO is -10dBm, with an improved quality factor of 49.