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2018•Unpublished venueRequires access

Low-power VCO for K-band Applications

Mostafa Katebi, A. Nasri, Siroos Toofan

Open publisher page 3 citations

Abstract

This paper presents a low-power Voltage Controlled Oscillator based on an NMOS Cross-Coupled pair and PMOS Colpitts structure for K-band applications. The advantages of this work consist of low phase noise and robust start-up condition, leading to minimized dc power. The proposed circuit is simulated in$\pmb{0.18 \mu \text{m}}$CMOS process. The designed VCO covers the frequency range of 23.9 GHz to 24.6 GHz with a tuning range of 2.9%. Simulation results show that the phase noise of designed VCO is −104.9 dBc/Hz at IMHz offset frequency for 24.1GHz carrier frequency, and its power consumption is 2.4 mW under 1 V supply voltage, and the figure-of-merit is −188.73 dBc/Hz.

About this research paper

What this paper is about

This paper presents a low-power Voltage Controlled Oscillator based on an NMOS Cross-Coupled pair and PMOS Colpitts structure for K-band applications. The advantages of this work consist of low phase noise and robust start-up condition, leading to minimized dc power. The proposed circuit is simulated in$\pmb{0.18 \mu \text{m}}$CMOS process. The designed VCO covers the frequency range of 23.9 GHz to 24.6 GHz with a tuning range of 2.9%. Simulation results show that the phase noise of designed VCO is −104.9 dBc/Hz at IMHz offset frequency for 24.1GHz carrier frequency, and its power consumption is 2.4 mW under 1 V supply voltage, and the figure-of-merit is −188.73 dBc/Hz.

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Available abstract

This paper presents a low-power Voltage Controlled Oscillator based on an NMOS Cross-Coupled pair and PMOS Colpitts structure for K-band applications. The advantages of this work consist of low phase noise and robust start-up condition, leading to minimized dc power. The proposed circuit is simulated in$\pmb{0.18 \mu \text{m}}$CMOS process. The designed VCO covers the frequency range of 23.9 GHz to 24.6 GHz with a tuning range of 2.9%. Simulation results show that the phase noise of designed VCO is −104.9 dBc/Hz at IMHz offset frequency for 24.1GHz carrier frequency, and its power consumption is 2.4 mW under 1 V supply voltage, and the figure-of-merit is −188.73 dBc/Hz.

Key concepts: Voltage-controlled oscillator, Phase noise, NMOS logic, dBc, PMOS logic, Colpitts oscillator, Electrical engineering, CMOS

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Low-power VCO for K-band Applications — Research Paper | ScholarLens