Wideband LC VCO with 39.3 % Frequency Tuning Range for Dielectric Spectroscopy System

Kiho Lee; Dongho Lee; Jusung Kim; Songcheol Hong

doi:10.1109/ISOCC53507.2021.9613982

Wideband LC VCO with 39.3 % Frequency Tuning Range for Dielectric Spectroscopy System

Kiho Lee, Dongho Lee, Jusung Kim, Songcheol Hong

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

2 Scopus citations

Abstract

To detect the permittivity of various materials, an accurate reference frequency over wideband is required. In this work, we propose a LC voltage controlled oscillator (VCO) suitable for a dielectric spectroscopy system covering C-band frequency range. Wide tuning range of a LC VCO is achieved by a 3-bit controlled capacitor bank and a NMOS varactor. Coarse frequency tune is provided by the capacitor bank with 100fF resolution and its capacitance covers up to 700fF. NMOS varactor provides the fine tune covering 50fF to 200fF capacitance ranges. The prototype circuit is implemented in 28-nm CMOS technology with the active area of 0.33 mm × 0.53 mm, while consuming 4.35 mW power consumption from a 1.1 V supply voltage. The proposed VCO operates from 4.5 to 6.7 GHz (39.3% tuning range) and achieves a low phase noise of-105.9 dBc/Hz at 1 MHz offset frequency.

Original language	English
Title of host publication	Proceedings - International SoC Design Conference 2021, ISOCC 2021
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	39-40
Number of pages	2
ISBN (Electronic)	9781665401746
DOIs	https://doi.org/10.1109/ISOCC53507.2021.9613982
State	Published - 2021
Event	18th International System-on-Chip Design Conference, ISOCC 2021 - Jeju Island, Korea, Republic of Duration: 6 Oct 2021 → 9 Oct 2021

Publication series

Name	Proceedings - International SoC Design Conference 2021, ISOCC 2021

Conference

Conference	18th International System-on-Chip Design Conference, ISOCC 2021
Country/Territory	Korea, Republic of
City	Jeju Island
Period	6/10/21 → 9/10/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

capacitor bank
CMOS
frequency tuning range
varactor
voltage controlled oscillator

Access to Document

10.1109/ISOCC53507.2021.9613982

Cite this

Lee, K., Lee, D., Kim, J., & Hong, S. (2021). Wideband LC VCO with 39.3 % Frequency Tuning Range for Dielectric Spectroscopy System. In Proceedings - International SoC Design Conference 2021, ISOCC 2021 (pp. 39-40). (Proceedings - International SoC Design Conference 2021, ISOCC 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISOCC53507.2021.9613982

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title = "Wideband LC VCO with 39.3 \% Frequency Tuning Range for Dielectric Spectroscopy System",

abstract = "To detect the permittivity of various materials, an accurate reference frequency over wideband is required. In this work, we propose a LC voltage controlled oscillator (VCO) suitable for a dielectric spectroscopy system covering C-band frequency range. Wide tuning range of a LC VCO is achieved by a 3-bit controlled capacitor bank and a NMOS varactor. Coarse frequency tune is provided by the capacitor bank with 100fF resolution and its capacitance covers up to 700fF. NMOS varactor provides the fine tune covering 50fF to 200fF capacitance ranges. The prototype circuit is implemented in 28-nm CMOS technology with the active area of 0.33 mm × 0.53 mm, while consuming 4.35 mW power consumption from a 1.1 V supply voltage. The proposed VCO operates from 4.5 to 6.7 GHz (39.3\% tuning range) and achieves a low phase noise of-105.9 dBc/Hz at 1 MHz offset frequency.",

keywords = "capacitor bank, CMOS, frequency tuning range, varactor, voltage controlled oscillator",

author = "Kiho Lee and Dongho Lee and Jusung Kim and Songcheol Hong",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 18th International System-on-Chip Design Conference, ISOCC 2021 ; Conference date: 06-10-2021 Through 09-10-2021",

year = "2021",

doi = "10.1109/ISOCC53507.2021.9613982",

language = "English",

series = "Proceedings - International SoC Design Conference 2021, ISOCC 2021",

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Lee, K, Lee, D, Kim, J & Hong, S 2021, Wideband LC VCO with 39.3 % Frequency Tuning Range for Dielectric Spectroscopy System. in Proceedings - International SoC Design Conference 2021, ISOCC 2021. Proceedings - International SoC Design Conference 2021, ISOCC 2021, Institute of Electrical and Electronics Engineers Inc., pp. 39-40, 18th International System-on-Chip Design Conference, ISOCC 2021, Jeju Island, Korea, Republic of, 6/10/21. https://doi.org/10.1109/ISOCC53507.2021.9613982

Wideband LC VCO with 39.3 % Frequency Tuning Range for Dielectric Spectroscopy System. / Lee, Kiho; Lee, Dongho; Kim, Jusung et al.
Proceedings - International SoC Design Conference 2021, ISOCC 2021. Institute of Electrical and Electronics Engineers Inc., 2021. p. 39-40 (Proceedings - International SoC Design Conference 2021, ISOCC 2021).

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

TY - GEN

T1 - Wideband LC VCO with 39.3 % Frequency Tuning Range for Dielectric Spectroscopy System

AU - Lee, Kiho

AU - Lee, Dongho

AU - Kim, Jusung

AU - Hong, Songcheol

PY - 2021

Y1 - 2021

N2 - To detect the permittivity of various materials, an accurate reference frequency over wideband is required. In this work, we propose a LC voltage controlled oscillator (VCO) suitable for a dielectric spectroscopy system covering C-band frequency range. Wide tuning range of a LC VCO is achieved by a 3-bit controlled capacitor bank and a NMOS varactor. Coarse frequency tune is provided by the capacitor bank with 100fF resolution and its capacitance covers up to 700fF. NMOS varactor provides the fine tune covering 50fF to 200fF capacitance ranges. The prototype circuit is implemented in 28-nm CMOS technology with the active area of 0.33 mm × 0.53 mm, while consuming 4.35 mW power consumption from a 1.1 V supply voltage. The proposed VCO operates from 4.5 to 6.7 GHz (39.3% tuning range) and achieves a low phase noise of-105.9 dBc/Hz at 1 MHz offset frequency.

AB - To detect the permittivity of various materials, an accurate reference frequency over wideband is required. In this work, we propose a LC voltage controlled oscillator (VCO) suitable for a dielectric spectroscopy system covering C-band frequency range. Wide tuning range of a LC VCO is achieved by a 3-bit controlled capacitor bank and a NMOS varactor. Coarse frequency tune is provided by the capacitor bank with 100fF resolution and its capacitance covers up to 700fF. NMOS varactor provides the fine tune covering 50fF to 200fF capacitance ranges. The prototype circuit is implemented in 28-nm CMOS technology with the active area of 0.33 mm × 0.53 mm, while consuming 4.35 mW power consumption from a 1.1 V supply voltage. The proposed VCO operates from 4.5 to 6.7 GHz (39.3% tuning range) and achieves a low phase noise of-105.9 dBc/Hz at 1 MHz offset frequency.

KW - capacitor bank

KW - CMOS

KW - frequency tuning range

KW - varactor

KW - voltage controlled oscillator

UR - https://www.scopus.com/pages/publications/85123351208

U2 - 10.1109/ISOCC53507.2021.9613982

DO - 10.1109/ISOCC53507.2021.9613982

M3 - Conference contribution

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T3 - Proceedings - International SoC Design Conference 2021, ISOCC 2021

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BT - Proceedings - International SoC Design Conference 2021, ISOCC 2021

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 18th International System-on-Chip Design Conference, ISOCC 2021

Y2 - 6 October 2021 through 9 October 2021

ER -

Wideband LC VCO with 39.3 % Frequency Tuning Range for Dielectric Spectroscopy System

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Keywords

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