A 1.2-3.2 GHz CMOS VCO IC utilizing transformer-based variable inductors and amos varactors

Qing Liu; Yusuke Takigawa; Satoshi Kurachi; Nobuyuki Itoh; Toshihiko Yoshimasu

doi:10.1587/transfun.E94.A.568

A 1.2-3.2 GHz CMOS VCO IC utilizing transformer-based variable inductors and amos varactors

Qing Liu^*, Yusuke Takigawa, Satoshi Kurachi, Nobuyuki Itoh, Toshihiko Yoshimasu

^*この研究の対応する著者

大学院情報生産システム研究科

研究成果: Article › 査読

6 被引用数 (Scopus)

抄録

A novel resonant circuit consisting of transformer-based switched variable inductors and switched accumulationMOS (AMOS) varactors is proposed to realize an ultrawide tuning range voltage-controlledoscillator (VCO). The VCO IC is designed and fabricated using 0.11 μm CMOS technology and fully evaluated on-wafer. The VCO exhibits a frequency tuning range as high as 92.6% spanning from 1.20 GHz to 3.27 GHz at an operation voltage of 1.5V. The measured phase noise of -120 dBc/Hz at 1MHz offset from the 3.1 GHz carrier is obtained.

本文言語	English
ページ（範囲）	568-573
ページ数	6
ジャーナル	IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
巻	E94-A
号	2
DOI	https://doi.org/10.1587/transfun.E94.A.568
出版ステータス	Published - 2011 2月

ASJC Scopus subject areas

信号処理
コンピュータグラフィックスおよびコンピュータ支援設計
電子工学および電気工学
応用数学

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10.1587/transfun.E94.A.568

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abstract = "A novel resonant circuit consisting of transformer-based switched variable inductors and switched accumulationMOS (AMOS) varactors is proposed to realize an ultrawide tuning range voltage-controlledoscillator (VCO). The VCO IC is designed and fabricated using 0.11 μm CMOS technology and fully evaluated on-wafer. The VCO exhibits a frequency tuning range as high as 92.6% spanning from 1.20 GHz to 3.27 GHz at an operation voltage of 1.5V. The measured phase noise of -120 dBc/Hz at 1MHz offset from the 3.1 GHz carrier is obtained.",

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author = "Qing Liu and Yusuke Takigawa and Satoshi Kurachi and Nobuyuki Itoh and Toshihiko Yoshimasu",

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AU - Takigawa, Yusuke

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AU - Itoh, Nobuyuki

AU - Yoshimasu, Toshihiko

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N2 - A novel resonant circuit consisting of transformer-based switched variable inductors and switched accumulationMOS (AMOS) varactors is proposed to realize an ultrawide tuning range voltage-controlledoscillator (VCO). The VCO IC is designed and fabricated using 0.11 μm CMOS technology and fully evaluated on-wafer. The VCO exhibits a frequency tuning range as high as 92.6% spanning from 1.20 GHz to 3.27 GHz at an operation voltage of 1.5V. The measured phase noise of -120 dBc/Hz at 1MHz offset from the 3.1 GHz carrier is obtained.

AB - A novel resonant circuit consisting of transformer-based switched variable inductors and switched accumulationMOS (AMOS) varactors is proposed to realize an ultrawide tuning range voltage-controlledoscillator (VCO). The VCO IC is designed and fabricated using 0.11 μm CMOS technology and fully evaluated on-wafer. The VCO exhibits a frequency tuning range as high as 92.6% spanning from 1.20 GHz to 3.27 GHz at an operation voltage of 1.5V. The measured phase noise of -120 dBc/Hz at 1MHz offset from the 3.1 GHz carrier is obtained.

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KW - Transformer-based variable inductor

KW - Wide-tuning range

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A 1.2-3.2 GHz CMOS VCO IC utilizing transformer-based variable inductors and amos varactors

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