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A Low Power Inductorless LNA With Double Enhancement in 130 nm CMOS François Bel
本文介绍了一种130 nm CMOS工艺下低功耗无电感差分低噪声放大器设计。
20 dB增益, 4 dB噪声系数, 1.32 mW功耗
低噪声放大器CMOS无电感低功耗2.45 GHz
▸创新点1:无电感设计(电路创新)。该设计完全避免了电感的使用,通过优化电路拓扑和器件参数,实现了高增益和低噪声系数,同时降低了芯片面积和成本。
▸创新点2:双增强技术(方法创新)。采用双增强技术,显著提升了MOS晶体管的增益和噪声性能,克服了130 nm CMOS工艺中晶体管固有增益低的限制。
▸创新点3:低功耗优化(系统创新)。通过精细的功耗管理策略和电路设计,实现了仅1.32 mW的功耗,同时保持了20 dB的增益和4 dB的噪声系数,适用于低功耗ISM频段应用。
▸创新点4:高性能指标(性能创新)。该设计在2.45 GHz频段下实现了20 dB的增益和4 dB的噪声系数,同时保持了较低的功耗和较高的线性度,满足了ISM频段应用的需求。
Abstract
This paper presents the design of a low power differ-
ential Low Noise Ampli fier (LNA) in 130 nm CMOS technology
for 2.45 GHz ISM band applications. The circuit bene fits from sev-
eral -enhancements. These techniques provide a high gain and
reduced Noise Figure (NF) in spite of the low intrinsic of the
MOS transistors. Moreover, the cir cuit is fully inductorless. Main
design points are described and t he performance tradeoffs of the
circuit are discussed. A prototype has been implemented and it