A CMOS quadrature voltage-controlled oscillators using common-drain coupling transistors

被引：0

作者：

Jang, Sheng-Lyang ^{[1
]}

Liu, You-Wei ^{[1
]}

Chang, Chia-Wei ^{[1
]}

Juang, Miin-Horng ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei 106, Taiwan

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2013年 / 55卷 / 06期

关键词：

0; 18 m CMOS; quadrature voltage controlled oscillator (QVCO); common-drain transistor coupling; transformer; VCO;

D O I：

10.1002/mop.27578

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 fully integrated quadrature cross-coupled voltage controlled oscillator (QVCO) using common-drain transistor instead of common-source transistor as a coupling device.The prototype 3.8 GHz QVCO in 0.18 m CMOS process is proposed to generate four output phases and it uses two p-core cross-coupled VCOs and nMOS coupling devices. The proposed QVCO oscillates from 3.6 to 3.84 GHz and the power consumption is 7.24 mW at 0.74 V supply voltage. The measured phase noise is 126.19 dBc/Hz at 1 MHz offset frequency from the carrier frequency 3.745 GHz. The VCO occupies a chip area of 1.08 x0.924 mm2 and provides a figure of merit of 189.05 dBc/Hz. (c) 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:12621266, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27578

引用

页码：1262 / 1266

页数：5

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