This letter presents a new quadrature voltage-controlled oscillator (QVCO) consisting of two n-core Colpitts voltage-controlled oscillators (VCOs) with a tail inductor. The VCOs are used as a single-ended injected injection-locked frequency divider (ILFD). The output of the tail inductor in one ILFD is injected into the injection node in the other ILFD and vice versa. The proposed QVCO has been implemented in the 0.18 µm CMOS technology. At the supply voltage of 1.0 V, the power consumption is 1.8 mW. The free-running frequency is tunable from 4.68 GHz to 5.03 GHz as the tuning voltage is varied from 0.0 V to 1.8 V. The measured phase noise is -113.58 dBc/Hz at the 1 MHz frequency offset from the oscillation frequency of 5.03 GHz and the figure of merit (FOM) of the QVCO is -185.06 dBc/Hz.
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Sheng-Lyang JANG, Cheng-Chen LIU, Jhin-Fang HUANG, Yuan-Kai WU, Jhao-Jhang CHEN, "Quadrature VCOs Using Single-Ended Injected Injection-Locked Frequency Dividers" in IEICE TRANSACTIONS on Electronics,
vol. E92-C, no. 9, pp. 1226-1229, September 2009, doi: 10.1587/transele.E92.C.1226.
Abstract: This letter presents a new quadrature voltage-controlled oscillator (QVCO) consisting of two n-core Colpitts voltage-controlled oscillators (VCOs) with a tail inductor. The VCOs are used as a single-ended injected injection-locked frequency divider (ILFD). The output of the tail inductor in one ILFD is injected into the injection node in the other ILFD and vice versa. The proposed QVCO has been implemented in the 0.18 µm CMOS technology. At the supply voltage of 1.0 V, the power consumption is 1.8 mW. The free-running frequency is tunable from 4.68 GHz to 5.03 GHz as the tuning voltage is varied from 0.0 V to 1.8 V. The measured phase noise is -113.58 dBc/Hz at the 1 MHz frequency offset from the oscillation frequency of 5.03 GHz and the figure of merit (FOM) of the QVCO is -185.06 dBc/Hz.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E92.C.1226/_p
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@ARTICLE{e92-c_9_1226,
author={Sheng-Lyang JANG, Cheng-Chen LIU, Jhin-Fang HUANG, Yuan-Kai WU, Jhao-Jhang CHEN, },
journal={IEICE TRANSACTIONS on Electronics},
title={Quadrature VCOs Using Single-Ended Injected Injection-Locked Frequency Dividers},
year={2009},
volume={E92-C},
number={9},
pages={1226-1229},
abstract={This letter presents a new quadrature voltage-controlled oscillator (QVCO) consisting of two n-core Colpitts voltage-controlled oscillators (VCOs) with a tail inductor. The VCOs are used as a single-ended injected injection-locked frequency divider (ILFD). The output of the tail inductor in one ILFD is injected into the injection node in the other ILFD and vice versa. The proposed QVCO has been implemented in the 0.18 µm CMOS technology. At the supply voltage of 1.0 V, the power consumption is 1.8 mW. The free-running frequency is tunable from 4.68 GHz to 5.03 GHz as the tuning voltage is varied from 0.0 V to 1.8 V. The measured phase noise is -113.58 dBc/Hz at the 1 MHz frequency offset from the oscillation frequency of 5.03 GHz and the figure of merit (FOM) of the QVCO is -185.06 dBc/Hz.},
keywords={},
doi={10.1587/transele.E92.C.1226},
ISSN={1745-1353},
month={September},}
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TY - JOUR
TI - Quadrature VCOs Using Single-Ended Injected Injection-Locked Frequency Dividers
T2 - IEICE TRANSACTIONS on Electronics
SP - 1226
EP - 1229
AU - Sheng-Lyang JANG
AU - Cheng-Chen LIU
AU - Jhin-Fang HUANG
AU - Yuan-Kai WU
AU - Jhao-Jhang CHEN
PY - 2009
DO - 10.1587/transele.E92.C.1226
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E92-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2009
AB - This letter presents a new quadrature voltage-controlled oscillator (QVCO) consisting of two n-core Colpitts voltage-controlled oscillators (VCOs) with a tail inductor. The VCOs are used as a single-ended injected injection-locked frequency divider (ILFD). The output of the tail inductor in one ILFD is injected into the injection node in the other ILFD and vice versa. The proposed QVCO has been implemented in the 0.18 µm CMOS technology. At the supply voltage of 1.0 V, the power consumption is 1.8 mW. The free-running frequency is tunable from 4.68 GHz to 5.03 GHz as the tuning voltage is varied from 0.0 V to 1.8 V. The measured phase noise is -113.58 dBc/Hz at the 1 MHz frequency offset from the oscillation frequency of 5.03 GHz and the figure of merit (FOM) of the QVCO is -185.06 dBc/Hz.
ER -