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An optimized 2.4 GHz VCO circuit design and simulation with high-Q MEMS LC-tank


Rahimi, Maryam and Jamuar, Sudhanshu Shekhar and Hamidon, Mohd Nizar and Ahmad, Mohd Rais and Mousavi, Sayed Alireza and Bayat, Mehdi (2010) An optimized 2.4 GHz VCO circuit design and simulation with high-Q MEMS LC-tank. International Journal of Electronics and Communications, 64 (5). pp. 413-424. ISSN 1434-8411


This paper focuses on design of high-performance MEMS LC-tank circuit for use in CMOS voltage controlled oscillators (VCO) operating at 2.4 GHz. The high-Q air suspended inductor has been designed by inductance of 2.87 nH using MEMS technology to reduce the resistive loss and the substrate loss. A MEMS two-gap tunable capacitor has been designed. The DC voltage is 2.5 V which is applied to the plates and the results of 2.04 pF could be achieved. The pull-in voltage has been optimized to achieve low phase noise, low power consumption VCO. Through this optimization, less phase noise (−117.7 dBc/Hz at 100 KHz) and lower power consumption (11 mW) have been obtained.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1016/j.aeue.2009.02.005
Publisher: Elsevier
Keywords: MEMS LC Tank, VCO, Inductor, Varactor, Q Factor
Depositing User: Anas Yahaya
Date Deposited: 18 Mar 2011 07:22
Last Modified: 02 Nov 2015 02:38
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.aeue.2009.02.005
URI: http://psasir.upm.edu.my/id/eprint/10922
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