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CMOS LC voltage controlled oscillator design using multiwalled and single-walled carbon nanotube wire inductors

CMOS LC voltage controlled oscillator design using multiwalled and single-walled carbon nanotube... CMOS LC Voltage Controlled Oscillator Design Using Multiwalled and Single-Walled Carbon Nanotube Wire Inductors ASHOK SRIVASTAVA, YAO XU, and YANG LIU, Louisiana State University ASHWANI K. SHARMA and CLAY MAYBERRY, Air Force Research Laboratory We have utilized our Multiwalled Carbon NanoTube (MWCNT) and Single-Walled Carbon NanoTube (SWCNT) bundle interconnects model in a widely used model to study the performances of MWCNT and SWCNT bundle wire inductors and compared these with copper (Cu) inductors. The calculation results show that the Q-factors of Carbon NanoTube (CNT) wire (SWCNT bundle and MWCNT) inductors are higher than that of the Cu wire inductor. This is mainly due to much lower resistance of CNT and negligible skin effect in carbon nanotubes at higher frequencies. The application of CNT wire inductor in LC VCO is also studied and the Cadence/Spectre simulations show that VCOs with CNT bundle wire inductors have significantly improved performance such as the higher oscillation frequency and lower phase noise due to their smaller resistances and higher Q-factors. It is also noticed that CMOS LC VCO using a SWCNT bundle wire inductor has better performance when compared with the performance of LC VCO using the MWCNT wire inductor due to its http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM Journal on Emerging Technologies in Computing Systems (JETC) Association for Computing Machinery

CMOS LC voltage controlled oscillator design using multiwalled and single-walled carbon nanotube wire inductors

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Publisher
Association for Computing Machinery
Copyright
Copyright © 2012 by ACM Inc.
ISSN
1550-4832
DOI
10.1145/2287696.2287698
Publisher site
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Abstract

CMOS LC Voltage Controlled Oscillator Design Using Multiwalled and Single-Walled Carbon Nanotube Wire Inductors ASHOK SRIVASTAVA, YAO XU, and YANG LIU, Louisiana State University ASHWANI K. SHARMA and CLAY MAYBERRY, Air Force Research Laboratory We have utilized our Multiwalled Carbon NanoTube (MWCNT) and Single-Walled Carbon NanoTube (SWCNT) bundle interconnects model in a widely used model to study the performances of MWCNT and SWCNT bundle wire inductors and compared these with copper (Cu) inductors. The calculation results show that the Q-factors of Carbon NanoTube (CNT) wire (SWCNT bundle and MWCNT) inductors are higher than that of the Cu wire inductor. This is mainly due to much lower resistance of CNT and negligible skin effect in carbon nanotubes at higher frequencies. The application of CNT wire inductor in LC VCO is also studied and the Cadence/Spectre simulations show that VCOs with CNT bundle wire inductors have significantly improved performance such as the higher oscillation frequency and lower phase noise due to their smaller resistances and higher Q-factors. It is also noticed that CMOS LC VCO using a SWCNT bundle wire inductor has better performance when compared with the performance of LC VCO using the MWCNT wire inductor due to its

Journal

ACM Journal on Emerging Technologies in Computing Systems (JETC) – Association for Computing Machinery

Published: Aug 1, 2012

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