IEICE TRANSACTIONS on Electronics
A Wide-Tuning-Range VCO with Small VCO-Gain Variation for Multi-Band W-CDMA RFIC
Summary :
A wide-tuning-range LC-tuned voltage-controlled oscillator (LC-VCO) – featuring small VCO-gain (KVCO) variation – has been developed. For small KVCO variation, a serial LC-resonator that consists of an inductor, a fine-tuning varactor, and a capacitor bank was added to a conventional parallel LC-resonator that uses a capacitor bank scheme. The resonator was applied to a 3.9-GHz VCO for multi-band W-CDMA RFIC fabricated using 0.25-µm Si-BiCMOS technology. The VCO exhibited KVCO variation of only 21%, which is one third that of a conventional VCO, with a 34% tuning range. The VCO also exhibited a low phase noise of -121 dBc/Hz at 1-MHz offset frequency and a low current consumption of 6.0 mA.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E96-C No.6 pp.790-795
- Publication Date
- 2013/06/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E96.C.790
- Type of Manuscript
- Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
- Category
Authors
Takahiro NAKAMURA
Hitachi, Ltd.
Tomomitsu KITAMURA
Renesas Mobile Corporation
Nobuhiro SHIRAMIZU
Hitachi, Ltd.
Toru MASUDA
Hitachi, Ltd.
Keyword
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Takahiro NAKAMURA, Tomomitsu KITAMURA, Nobuhiro SHIRAMIZU, Toru MASUDA, "A Wide-Tuning-Range VCO with Small VCO-Gain Variation for Multi-Band W-CDMA RFIC" in IEICE TRANSACTIONS on Electronics,
vol. E96-C, no. 6, pp. 790-795, June 2013, doi: 10.1587/transele.E96.C.790.
Abstract: A wide-tuning-range LC-tuned voltage-controlled oscillator (LC-VCO) – featuring small VCO-gain (KVCO) variation – has been developed. For small KVCO variation, a serial LC-resonator that consists of an inductor, a fine-tuning varactor, and a capacitor bank was added to a conventional parallel LC-resonator that uses a capacitor bank scheme. The resonator was applied to a 3.9-GHz VCO for multi-band W-CDMA RFIC fabricated using 0.25-µm Si-BiCMOS technology. The VCO exhibited KVCO variation of only 21%, which is one third that of a conventional VCO, with a 34% tuning range. The VCO also exhibited a low phase noise of -121 dBc/Hz at 1-MHz offset frequency and a low current consumption of 6.0 mA.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E96.C.790/_p
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@ARTICLE{e96-c_6_790,
author={Takahiro NAKAMURA, Tomomitsu KITAMURA, Nobuhiro SHIRAMIZU, Toru MASUDA, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Wide-Tuning-Range VCO with Small VCO-Gain Variation for Multi-Band W-CDMA RFIC},
year={2013},
volume={E96-C},
number={6},
pages={790-795},
abstract={A wide-tuning-range LC-tuned voltage-controlled oscillator (LC-VCO) – featuring small VCO-gain (KVCO) variation – has been developed. For small KVCO variation, a serial LC-resonator that consists of an inductor, a fine-tuning varactor, and a capacitor bank was added to a conventional parallel LC-resonator that uses a capacitor bank scheme. The resonator was applied to a 3.9-GHz VCO for multi-band W-CDMA RFIC fabricated using 0.25-µm Si-BiCMOS technology. The VCO exhibited KVCO variation of only 21%, which is one third that of a conventional VCO, with a 34% tuning range. The VCO also exhibited a low phase noise of -121 dBc/Hz at 1-MHz offset frequency and a low current consumption of 6.0 mA.},
keywords={},
doi={10.1587/transele.E96.C.790},
ISSN={1745-1353},
month={June},}
Copy
TY - JOUR
TI - A Wide-Tuning-Range VCO with Small VCO-Gain Variation for Multi-Band W-CDMA RFIC
T2 - IEICE TRANSACTIONS on Electronics
SP - 790
EP - 795
AU - Takahiro NAKAMURA
AU - Tomomitsu KITAMURA
AU - Nobuhiro SHIRAMIZU
AU - Toru MASUDA
PY - 2013
DO - 10.1587/transele.E96.C.790
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E96-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2013
AB - A wide-tuning-range LC-tuned voltage-controlled oscillator (LC-VCO) – featuring small VCO-gain (KVCO) variation – has been developed. For small KVCO variation, a serial LC-resonator that consists of an inductor, a fine-tuning varactor, and a capacitor bank was added to a conventional parallel LC-resonator that uses a capacitor bank scheme. The resonator was applied to a 3.9-GHz VCO for multi-band W-CDMA RFIC fabricated using 0.25-µm Si-BiCMOS technology. The VCO exhibited KVCO variation of only 21%, which is one third that of a conventional VCO, with a 34% tuning range. The VCO also exhibited a low phase noise of -121 dBc/Hz at 1-MHz offset frequency and a low current consumption of 6.0 mA.
ER -
English
