Design of an Active-Loaded Differential Voltage-Controlled Oscillator (VCO) Using Double-Gate MOSFET

Pillay, Suvashan and Srivastava, Viranjay (2023) Design of an Active-Loaded Differential Voltage-Controlled Oscillator (VCO) Using Double-Gate MOSFET. International Journal of Engineering Trends and Technology, 71 (12). pp. 248-263. ISSN 22315381

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A differential cross-coupled Voltage Controlled Oscillator (VCO) has been designed using the Double-Gate (DG) MOSFET for VHF applications. The DG MOSFET exhibits superior noise immunity with its high noise figure and is suitable for low-power, high-frequency applications. The proposed VCO has been designed using a differential topology with improved power consumption, design flexibility, and noise reduction. This also improves the high-frequency performance of existing differential amplifiers. Thereafter, the proposed VCO was compared with fabrication and design methods, particularly Silicon-based CMOS and Single-Gate (SG) MOSFET VCOs, as possible alternatives. Various printed circuit board (PCB) design practices were followed to minimise the noise and improve the overall efficiency of the circuitry. Key parameters for the analysis of this VCO are the output power, phase noise, and figure of merit, which have been realised as -2.91 dBm at peak and -69.79 dBc/Hz at 1 MHz, respectively. The power consumption of the designed VCO is 36 mW.

Item Type: Article
Identification Number:
25 November 2023Accepted
6 December 2023Published Online
Uncontrolled Keywords: MOSFET, Double-Gate MOSFET, Differential amplifier, Microelectronics, Nanotechnology, VLSI, VCO.
Subjects: CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-01 - engineering (non-specific)
Divisions: Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Dept. of Engineering
Depositing User: Gemma Tonks
Date Deposited: 29 Feb 2024 15:08
Last Modified: 29 Feb 2024 15:08

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