Abstract
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.
Original language | English |
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Article number | 24 |
Pages (from-to) | 248-263 |
Number of pages | 16 |
Journal | International Journal of Engineering Trends and Technology |
Volume | 71 |
Issue number | 12 |
DOIs | |
Publication status | Published (VoR) - 1 Dec 2023 |
Funding
This research work is funded by the Electricity Supply Commission (Eskom), South Africa, dated 31 January 2020, under the Tertiary Education Support Programme (TESP).
Funders | Funder number |
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Electricity Supply Commission | |
Tertiary Education Support Programme |
Keywords
- Electronic
- nanotechnology
- communication
- physical characteristics