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

Rahimi, Maryam, Jamuar, Sudhanshu Shekhar, Hamidon, Mohd Nizar, Ahmad, Mohd Rais, 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

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Abstract

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.

Item Type:Article
Keyword:MEMS LC Tank, VCO, Inductor, Varactor, Q Factor
Faculty or Institute:Faculty of Engineering
Publisher:Elsevier
DOI Number:10.1016/j.aeue.2009.02.005
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.aeue.2009.02.005
ID Code:10922
Deposited By: Anas Yahaya
Deposited On:18 Mar 2011 07:22
Last Modified:18 Mar 2011 07:41

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