Low-power quadrature voltage-controlled oscillator formed with two injection-locked frequency dividers

被引：0

作者：

Jang, Sheng-Lyang ^{[1
]}

Chou, Li-Te ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei, Taiwan

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2012年 / 54卷 / 05期

关键词：

CMOS; injection-locked frequency divider; quadrature voltage-controlled oscillator; inductive voltage boosting; PHASE-NOISE; VCO;

D O I：

10.1002/mop.26757

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article presents a new low-voltage n-core quadrature voltage-controlled oscillator (QVCO), which consists of two low-voltage n-core cross-coupled voltage-controlled oscillators (VCOs) with two injection MOSFETs in shunt with inductors used for inductive voltage boosting, and the QVCO coupling mechanism is the injection locking.The proposed CMOS QVCO has been implemented with the TSMC 0.18 mu m CMOS technology, and the die area is 0.86 x 0.75 mm2. At the supply voltage of 0.7 V, the total power consumption is 0.847 mW. The free-running frequency of the QVCO is tunable from 4.44 to 5.25 GHz, as the tuning voltage is varied from 0.0 to 0.7 V. The measured phase noise at 1 MHz frequency offset is -118.21 dBc/Hz at the oscillation frequency of 4.615 GHz, and the figure of merit of the proposed QVCO is -192.91 dBc/Hz. (C) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:11701173, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26757

引用

页码：1170 / 1173

页数：4

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