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Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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Home > Vol. 27 > pp. 151-160

A THREE-PHASE VOLTAGE-CONTROLLED OSCILLATOR USING A COMPOSITE LC TRANSMISSION-LINE RESONATOR

By S.-L. Jang, Y.-S. Lin, C.-W. Chang, and M.-H. Juang

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Abstract:
This paper presents a new three-phase LC-ring voltage controlled oscillator (VCO) using the TSMC 0.18μm 1P6M CMOS process. The VCO consists of three single-ended complementary Colpitts VCOs coupled via a varactor ring. Tuning range of VCO is 0.59 GHz, from 8.22 GHz to 8.81 GHz, while the control voltage was tuned from 0 V to 1.1 V and the VCO core power consumption is 2.82 mW at the supply voltage of 1.1 V. The measured phase noise is -118.14 dBc/Hz at 1 MHz offset frequency from 8.40 GHz. The VCO occupies a chip area of 1.018×0.74 mm2 and provides a figure of merit of -192.14 dBc/Hz.

Citation:
S.-L. Jang, Y.-S. Lin, C.-W. Chang, and M.-H. Juang, "A Three-Phase Voltage-Controlled Oscillator Using a Composite LC Transmission-Line Resonator," Progress In Electromagnetics Research Letters, Vol. 27, 151-160, 2011.
doi:10.2528/PIERL11092905

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