Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction

This paper presents a voltage-controlled oscillator (VCO) with automatic amplitude control (AAC) loop. The proposed AAC VCO employs a hybrid type AAC loop and targets the Industrial, Scientific and Medical (ISM) band applications. The proposed AAC loop can also prevent the AAC from generating extra...

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Main Authors: Zhang, Y. X, Yeo, K. S., Boon, C. C.
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2014
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Online Access:https://hdl.handle.net/10356/104847
http://hdl.handle.net/10220/20364
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1048472020-03-07T14:00:36Z Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction Zhang, Y. X Yeo, K. S. Boon, C. C. School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Computer hardware, software and systems This paper presents a voltage-controlled oscillator (VCO) with automatic amplitude control (AAC) loop. The proposed AAC VCO employs a hybrid type AAC loop and targets the Industrial, Scientific and Medical (ISM) band applications. The proposed AAC loop can also prevent the AAC from generating extra noise to the VCO and avoid stability problem which is common for conventional AAC loop. Detail transient analysis of this AAC VCO is derived. Based on this analysis, design steps applicable for such type of AAC loop is obtained. Measurement result shows the peak amplitude variation over the operation range of 2.25-2.54 GHz is less than 9 mV (without the AAC loop, amplitude variation can be as large as 40 mV, or 22.2% for 180 mV amplitude). Power consumption of the proposed AAC VCO is 4.5 mW while the power consumed by the loop is 0.8 mW and phase noise is -105 dBc/Hz at 100 kHz offset frequency. Worst case settling time is less than 10.5 μs Accepted version 2014-08-21T05:52:48Z 2019-12-06T21:41:06Z 2014-08-21T05:52:48Z 2019-12-06T21:41:06Z 2014 2014 Journal Article Zhang, Y. X., Boon, C. C., & Yeo, K. S. (2014). Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction. Journal of Circuits, Systems and Computers, 23(04), 1450048-. 0218-1266 https://hdl.handle.net/10356/104847 http://hdl.handle.net/10220/20364 10.1142/S0218126614500480 en Journal of circuits, systems and computers © 2014 World Scientific Publishing Company. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Circuits, Systems and Computers, World Scientific Publishing Company. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1142/S0218126614500480]. 14 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Computer hardware, software and systems
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Computer hardware, software and systems
Zhang, Y. X
Yeo, K. S.
Boon, C. C.
Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction
description This paper presents a voltage-controlled oscillator (VCO) with automatic amplitude control (AAC) loop. The proposed AAC VCO employs a hybrid type AAC loop and targets the Industrial, Scientific and Medical (ISM) band applications. The proposed AAC loop can also prevent the AAC from generating extra noise to the VCO and avoid stability problem which is common for conventional AAC loop. Detail transient analysis of this AAC VCO is derived. Based on this analysis, design steps applicable for such type of AAC loop is obtained. Measurement result shows the peak amplitude variation over the operation range of 2.25-2.54 GHz is less than 9 mV (without the AAC loop, amplitude variation can be as large as 40 mV, or 22.2% for 180 mV amplitude). Power consumption of the proposed AAC VCO is 4.5 mW while the power consumed by the loop is 0.8 mW and phase noise is -105 dBc/Hz at 100 kHz offset frequency. Worst case settling time is less than 10.5 μs
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Zhang, Y. X
Yeo, K. S.
Boon, C. C.
format Article
author Zhang, Y. X
Yeo, K. S.
Boon, C. C.
author_sort Zhang, Y. X
title Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction
title_short Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction
title_full Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction
title_fullStr Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction
title_full_unstemmed Design and analysis of a 2.4 GHz hybrid type automatic amplitude control VCO with forward noise reduction
title_sort design and analysis of a 2.4 ghz hybrid type automatic amplitude control vco with forward noise reduction
publishDate 2014
url https://hdl.handle.net/10356/104847
http://hdl.handle.net/10220/20364
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