← 返回 JSSC 论文列表JSSC 2011第9期Clocking & PLLsSiGe技术(300GHz HBTs)VCO
A 122-GHz SiGe-Based Signal-Generation Chip Employing a Fundamental-Wave Oscilla
本文介绍了一种基于SiGe技术的122GHz信号生成芯片,采用基本波振荡器和电容反馈结构实现高频振荡和宽调谐范围。
输出频率122GHz,调谐范围16GHz,相位噪声-95dBc/Hz@1MHz偏移
信号生成SiGe技术基本波振荡器电容反馈高频振荡
▸采用基本波电压控制振荡器(VCO)结构
▸电容反馈结构支持高频振荡和宽调谐范围
▸集成输出缓冲器和可配置分频器
Abstract
This paper presents a highly integrated and fully
balanced signal generation block comprising a fundamental-wave
voltage-controlled oscillator (VCO), an output buffer, and a con-
figurable frequency divider stage (prescaler). The VCO introduces
a negative resistance structure in conjunct ion with capacitive
cross-coupling. This compound structure allows fundamental
oscillation to be sustained at high frequencies while providing
wide tuning ranges. The capabilities of th e capacitive feedback
were