低压VCO的设计和分析:可靠性和可变性性能
Tayebeh Azadmousavi1, Ebrahim Ghafar-Zadeh2
1Department of Electrical Engineering, University of Bonab, Bonab 55517-61167, Iran.
Micromachines
|November 25, 2023
概括
这项研究引入了适应性体偏差 (ABB) 电路,用于低压电感器电容器 (LC) 电压控制振荡器 (VCO). 通过调整晶体管门电压,ABB电路提高了VCO的可靠性,并减少了变化.
科学领域:
- 电气工程 电气工程
- 集成电路设计 集成电路设计
- 固态电子 固态电子
背景情况:
- 低压电感器-电容器 (LC) 电压控制振荡器 (VCO) 在现代电子中至关重要.
- 过程变化和可靠性变化显著影响VCO性能.
- 适应性身体偏差 (ABB) 为缓解这些问题提供了一个潜在的解决方案.
研究的目的:
- 研究一种自适应体偏差 (ABB) 电路,以提高低压LC VCOs的可靠性和可变性.
- 通过值电压调整,提高VCO对工艺变化和可靠性波动的弹性.
- 通过分析推导出考虑身体偏差效应的VCO关系,并通过模拟验证性能.
主要方法:
- 开发和实施适应性身体偏差 (ABB) 电路.
- 分析方程的推导,包括对VCO性能的身体偏差效应.
- 布局后的模拟和过程变化分析 (蒙特卡洛,角形案例) 用于验证.
主要成果:
- 与恒定体偏差 (CBB) 相比,ABB电路显著降低了对值电压变化 (相位噪声8.4倍) 和移动性变化 (1.5倍) 的灵敏度.
- 拟议的VCO证明了对工艺变化的稳定性.
- 在1MHz偏移下实现了-123.19 dBc/Hz的相位噪声,功率 (FoM) 为 -194.82 dBc/Hz.
- 在2.4 GHz VCO.中,在0.6 V供应下低功耗398μW,为2.4 GHz VCO.
结论:
- 适应性身体偏差 (ABB) 电路有效地提高了可靠性,并减少了低压LC VCOs的变化.
- 通过减轻晶体管门电压和移动性变化的影响,ABB提高了VCO性能.
- 拟议的VCO设计适用于180nmCMOS过程中的低功耗,高性能应用.
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