Analysis and implementation of a voltage-controlled oscillator with low phase noise and low power dissipation

Authors:
Jian-Yu Hsieh;Shuenn-Yuh Lee;Chia-Chan Chang
Affiliations:
National Chung-Cheng University, Ming-Hsiung, Chia-Yi, Taiwan, R.O.C.;National Chung-Cheng University, Ming-Hsiung, Chia-Yi, Taiwan, R.O.C.;National Chung-Cheng University, Ming-Hsiung, Chia-Yi, Taiwan, R.O.C.
Venue:
CSS '07 Proceedings of the Fifth IASTED International Conference on Circuits, Signals and Systems
Year:
2007

Citing 2
Cited 0

Design and optimization of LC oscillators

ICCAD '99 Proceedings of the 1999 IEEE/ACM international conference on Computer-aided design
Design of Analog CMOS Integrated Circuits

Design of Analog CMOS Integrated Circuits

Quantified Score

Hi-index	0.00

Visualization

Abstract

The paper proposes a voltage-controlled oscillator (VCO) with low phase noise and low power dissipation for IEEE 802.11a. The VCO is implemented by a negative resistance multiple-gated circuit (NRMGC) and a bypass capacitor to achieve the performance. The chip is fabricated with 0.18μm CMOS process. Its measured results show the phase noise of -124.81dBc/Hz at 1MHz offset frequency from the central carrier and the power dissipation of 2.7mW, tuning frequency from 2.167GHz to 2.73GHz, and oscillator signal power from -8.5dBm to -3.87dBm under the test condition of tuning voltage from -0.9V to 0.9V, and supply voltage of 0.9V. The theoretical analysis and design consideration are conducted in details to demonstrate the benefits of the proposed VCO.