电子学报2025，Vol.53Issue(2)：431-439,9.DOI:10.12263/DZXB.20240241
面向UWB应用的多模可重构LNA设计
Design of Multimode Reconfigurable Low Noise Amplifier for UWB Applications
摘要
Abstract
To solve the compatibility problem of multi-band on a single chip in the RF front-end of the receiver,this paper proposes a new bandwidth-reconfigurable low noise amplifier(LNA)structure for UWB applications.This LNA is based on switchable reconfigurable design methods,embedding the switchable design in the load of the cascaded LNA cir-cuit.The design achieves switching of in-band input impedance matching and gain curves for different UWB operating modes by controlling the position of low-frequency impedance resonance point and corresponding gain pole through the re-configurable design of the load inductance of the resistive parallel negative feedback structure.Compared with the design methods of introducing switches in the input/output matching path,placing switches at the load optimizes gain and noise performance without affecting impedance matching.The resistors and inductors in the traditional inductive peaking tech-nique are adjustable to consider gain flatness within different operating bandwidths.Based on SMIC 28 nm CMOS technol-ogy,the simulation results of electromagnetic modeling demonstrate that the LNA operates in three modes:3.1～10.6 GHz,6～10.6 GHz,and 3.1～5 GHz,with in-band voltage gain(S21)above 16.59 dB and minimum noise figure below 3 dB.Under 0.8 V power supply voltage,all three modes exhibit input and output matching(S11,S22)below-10 dB,with a static power consumption of only 9.03 mW;after introducing MOS switches,the noise figure degradation of the LNA in all three band-widths is less than 0.2 dB.关键词
低噪声放大器/超宽带/带宽可调/可重构/开关切换/电感峰化Key words
low noise amplifier/ultra wide band/adjustable bandwidth/reconfigurable/switching/inductive peaking分类
信息技术与安全科学引用本文复制引用
刘启航,雷倩倩,熊剑辉,张旭东..面向UWB应用的多模可重构LNA设计[J].电子学报,2025,53(2):431-439,9.基金项目
国家重点研发计划(No.2018YFB2200500) （No.2018YFB2200500）
陕西省重点研发计划(No.2022GY-012) （No.2022GY-012）
深圳市"孔雀计划"团队项目(No.KQTD20190929172628244) National Key Research and Development Program of China(No.2018YFB2200500) （No.KQTD20190929172628244）
Key Research and Development Program of Shaanxi(No.2022GY-012) （No.2022GY-012）
Shenzhen Science and Technology Program(No.KQTD20190929172628244) （No.KQTD20190929172628244）
