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Title: An in-phase-coupled class-C quadrature VCO with tunable phase error
Authors: Zhang, Yuxiang
Boon, Chirn Chye
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
Issue Date: 2014
Source: Zhang, Y., & Boon, C. C. (2014). An in-phase-coupled class-C quadrature VCO with tunable phase error. IEEE microwave and wireless components letters, 24(11), 796-798.
Series/Report no.: IEEE microwave and wireless components letters
Abstract: This letter presents the design and analysis of a novel in-phase-coupled (IPC) Class-C Quadrature Voltage-Controlled Oscillator (QVCO) with tunable phase error. The IPC QVCO employs a novel coupling structure that generates in-phase coupling signal while consuming negligible power itself. IPC scheme enables the QVCO to achieve better phase noise and phase error compared to that of the conventional QVCO. The phase error of the proposed IPC QVCO is also tunable. The proposed IPC QVCO is fabricated using 0.18 μm CMOS technology and the measured output frequency range is from 2.5 to 2.97 GHz. At 2.623 GHz, with 3.6 mW power consumption, the phase noise at 1 MHz offset achieves -126.8 dBc/Hz while the phase error before phase error tuning is 0.5 °. The measured phase error tuning range is ±17°.
DOI: 10.1109/LMWC.2014.2352794
Rights: © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [Article DOI:].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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