A 3 GHz CMOS Quadrature oscillator using active superharmonic coupling

B. Jackson, C. Saavedra
{"title":"A 3 GHz CMOS Quadrature oscillator using active superharmonic coupling","authors":"B. Jackson, C. Saavedra","doi":"10.1109/eumc.2007.4405392","DOIUrl":null,"url":null,"abstract":"A 3 GHz quadrature oscillator has been designed, fabricated, and measured using CMOS 0.18 mum technology. The oscillator uses an active superharmonic coupling technique to generate the quadrature signals. By using two identical LC differential oscillators with a 180deg relationship enforced between the second-order harmonics that are present at the common-mode nodes, quadrature outputs are obtained at the fundamental frequency. Quadrature oscillations were achieved at 3.0 GHz with a measured output power of -6 dBm. The phase error in the fundamental quadrature outputs is less than 6deg and the power consumption for the core of the oscillator is 7.5 mW. The phase noise performance is -116 dBc/Hz at a 1 MHz offset and the figure of merit is -177 dBc/Hz. The layout for this circuit is very compact at 650 mum times 500 mum.","PeriodicalId":436391,"journal":{"name":"2007 European Microwave Integrated Circuit Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 European Microwave Integrated Circuit Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/eumc.2007.4405392","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

A 3 GHz quadrature oscillator has been designed, fabricated, and measured using CMOS 0.18 mum technology. The oscillator uses an active superharmonic coupling technique to generate the quadrature signals. By using two identical LC differential oscillators with a 180deg relationship enforced between the second-order harmonics that are present at the common-mode nodes, quadrature outputs are obtained at the fundamental frequency. Quadrature oscillations were achieved at 3.0 GHz with a measured output power of -6 dBm. The phase error in the fundamental quadrature outputs is less than 6deg and the power consumption for the core of the oscillator is 7.5 mW. The phase noise performance is -116 dBc/Hz at a 1 MHz offset and the figure of merit is -177 dBc/Hz. The layout for this circuit is very compact at 650 mum times 500 mum.
一种采用有源超谐波耦合的3ghz CMOS正交振荡器
利用CMOS 0.18 mum技术设计、制造并测量了一个3ghz正交振荡器。该振荡器采用有源超谐波耦合技术产生正交信号。通过使用两个相同的LC差分振荡器,在共模节点上存在的二阶谐波之间强制180度关系,在基频上获得正交输出。在3.0 GHz频率下实现正交振荡,测量输出功率为-6 dBm。基本正交输出的相位误差小于6度,振荡器核心的功耗为7.5 mW。在1mhz偏移时,相位噪声性能为-116 dBc/Hz,优点值为-177 dBc/Hz。该电路的布局非常紧凑,为650兆赫乘以500兆赫。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信