A 6-11GHz multi-phase VCO design with active inductors

Yu-Te Liao; C. J. Richard Shi

doi:10.1109/ISCAS.2008.4541586

A 6-11GHz multi-phase VCO design with active inductors

Yu-Te Liao^*, C. J. Richard Shi

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

13 Scopus citations

Abstract

A multiphase VCO using differential active inductors is designed and fabricated in an IBM 0.13um CMOS process. Using active inductors, the core VCO occupies 0.3x0.4 mm², and the central frequency can vary from 6GHz to 11GHz, exhibiting a 58% tunable frequency ranges. Exploiting current reuse, the phase noise is measured to be less than -95dBc/Hz at 1MHz offset with the measured power consumption ranging from 12 to 31mW in 6-11GHz. A signal coupling technique with phase shifting is employed to generate eight phase signals. The achieved phase errors of this design are smaller than 3°. In addition, bias compensation is shown to reduce the frequency variation under 10% while the temperature varies from -55°C to 125°C.

Original language	English
Title of host publication	2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Pages	988-991
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2008.4541586
State	Published - 25 Sep 2008
Event	2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008 - Seattle, WA, United States Duration: 18 May 2008 → 21 May 2008

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)	0271-4310

Conference

Conference	2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Country/Territory	United States
City	Seattle, WA
Period	18/05/08 → 21/05/08

Access to Document

10.1109/ISCAS.2008.4541586

Cite this

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title = "A 6-11GHz multi-phase VCO design with active inductors",

abstract = "A multiphase VCO using differential active inductors is designed and fabricated in an IBM 0.13um CMOS process. Using active inductors, the core VCO occupies 0.3x0.4 mm2, and the central frequency can vary from 6GHz to 11GHz, exhibiting a 58% tunable frequency ranges. Exploiting current reuse, the phase noise is measured to be less than -95dBc/Hz at 1MHz offset with the measured power consumption ranging from 12 to 31mW in 6-11GHz. A signal coupling technique with phase shifting is employed to generate eight phase signals. The achieved phase errors of this design are smaller than 3°. In addition, bias compensation is shown to reduce the frequency variation under 10% while the temperature varies from -55°C to 125°C.",

author = "Yu-Te Liao and {Richard Shi}, {C. J.}",

year = "2008",

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day = "25",

doi = "10.1109/ISCAS.2008.4541586",

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Liao, Y-T & Richard Shi, CJ 2008, A 6-11GHz multi-phase VCO design with active inductors. in 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008., 4541586, Proceedings - IEEE International Symposium on Circuits and Systems, pp. 988-991, 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008, Seattle, WA, United States, 18/05/08. https://doi.org/10.1109/ISCAS.2008.4541586

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AU - Liao, Yu-Te

AU - Richard Shi, C. J.

PY - 2008/9/25

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N2 - A multiphase VCO using differential active inductors is designed and fabricated in an IBM 0.13um CMOS process. Using active inductors, the core VCO occupies 0.3x0.4 mm2, and the central frequency can vary from 6GHz to 11GHz, exhibiting a 58% tunable frequency ranges. Exploiting current reuse, the phase noise is measured to be less than -95dBc/Hz at 1MHz offset with the measured power consumption ranging from 12 to 31mW in 6-11GHz. A signal coupling technique with phase shifting is employed to generate eight phase signals. The achieved phase errors of this design are smaller than 3°. In addition, bias compensation is shown to reduce the frequency variation under 10% while the temperature varies from -55°C to 125°C.

AB - A multiphase VCO using differential active inductors is designed and fabricated in an IBM 0.13um CMOS process. Using active inductors, the core VCO occupies 0.3x0.4 mm2, and the central frequency can vary from 6GHz to 11GHz, exhibiting a 58% tunable frequency ranges. Exploiting current reuse, the phase noise is measured to be less than -95dBc/Hz at 1MHz offset with the measured power consumption ranging from 12 to 31mW in 6-11GHz. A signal coupling technique with phase shifting is employed to generate eight phase signals. The achieved phase errors of this design are smaller than 3°. In addition, bias compensation is shown to reduce the frequency variation under 10% while the temperature varies from -55°C to 125°C.

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BT - 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008

T2 - 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008

Y2 - 18 May 2008 through 21 May 2008

ER -

A 6-11GHz multi-phase VCO design with active inductors

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