An 80-83 GHz CMOS DCO based on DiCAD technique for size, linearity and noise optimization

• 来源期刊: 中国科学（信息科学）
• 关键词: @@
• 年，卷（期）: 2017,（8）
• 页码范围: 76-78
• 页数: 3页
• 语种: 中文
• DOI: 10.1007/s11432-016-9051-8

摘要

Dear editor, It becomes practical to implement competitive mm-wave circuits in advanced deep-submicron CMOS process,with the scaling CMOS technology and innovative circuit techniques.Among various mm-wave circuit blocks,the oscillator draws special attention since mm-wave signal sources are demanded in almost all mm-wave electrical systems.However,big challenges still exist to implement a high performance mm-wave oscillator with the traditional approach.Varactors and switched capacitor arrays or switchable coupled tanks are usually used to realize the frequency tuning in LC oscillator at low frequency band below 10 GHz.However,the Q-factor of these frequency tuning components becomes very low and significantly deteriorates the phase noise performance of the oscillator.