A Novel Approach for Low Phase Noise Voltage Controlled Oscillator Design based on TSMC 0.18 um Technology

Subject Areas : Majlesi Journal of Telecommunication Devices

Farbod Setoudeh ¹ , Naeimeh Nouri ²

1 - Arak University of Technology
2 - Department of Electrical Engineering, Arak Branch, Islamic Azad University, Arak, Iran

Received: 2021-01-01 Accepted : 2021-01-28 Published : 2021-03-01

Keywords: phase noise, TSMC, Figure of merit, Voltage Control Oscillator,

Abstract :

In this paper, a new structure of Voltage Control Oscillator (VCO) to reduce the phase noise using two plans of a variable voltage capacitor is proposed. The aim of the current paper is to analyse two structure of a completely integrated 3.7 GHz LC-VCO based on TSMC 0.18 um technology. In the first plan for different voltages with variable voltage capacitors in this circuit can be achieved to a suitable phase noise of about 125 dB per Hz and in the second plan, a noise of -123 dB per Hz is achieved in the deviation frequency of 1 MHz. Also, the Figure of Merit (FOM) values for the first plan of -4/186 and for the second plan of –4/184 are achieved and the power consumption is 10 mW.

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