摘要
采用低噪声有源电感,设计了一种增益可调节的MB-LPC-LNA。在输入级,采用带有噪声抵消支路的有源电感,实现了不同频率下输入阻抗匹配与输入噪声的匹配;放大级采用共射共基-共射电流复用结构,实现了低功耗;在输出端使用了一个电阻负载,实现了输出阻抗匹配。基于Jazz 0.35μm SiGe BiCMOS工艺库,采用射频集成电路设计工具ADS,对该MB-LPC-LNA的性能进行验证。结果表明,在3.6 GHz和5.6 GHz两个频带下,该LNA的输入输出匹配良好,输入回波损耗分别为-21.9 dB和-21.7 dB,输出回波损耗分别为-23.5 dB和-16.0 dB;反向隔离度良好,均小于-80 dB;噪声性能良好,噪声系数分别为4.33 dB和4.51 dB;电压放大性能良好,增益分别为23.7 dB和23.9 dB;功耗较低,分别为14.9 mW和15.4 mW;线性度良好,IIP3和OIP3分别为-9 dBm和13 dBm。
A multiband low power consumption low noise amplifier(MB-LPC-LNA)with adjustable gain was designed by using a low noise active inductor.At the input stage,the active inductor with noise cancellation branch was used to realize the matching of input impedance and input noise at different frequencies.At the amplifier stage,the cascode-common emitter current multiplexing structure was adopted to achieve low power consumption.At the output terminal,a resistance load was used to realize the matching of output impedance.Based on the Jazz 0.35μm SiGe BiCMOS process design kit(PDK),the proposed MB-LPC-LNA was verified by the ADS’s RF IC design tools.The results showed that the LNA had nice matching of input impedance and output impedance in 3.6 GHz and 5.6 GHz bands.The input return loss was-21.9 dB and-21.7 dB,the output return loss was-23.5 dB and-16.0 dB respectively.The reverse isolation was less than-80 dB.The NF was 4.33 dB and 4.51 dB respectively.The gain was 23.7 dB and 23.9 dB,and the power consumption was 14.9 mW and 15.4 mW respectively.The circuit had a good linearity.The IIP3 was-9 dBm,and the OIP3 was 13 dBm.
作者
唐彦
封志宏
王忠俊
王璞
海宁
张万荣
TANG Yan;FENG Zhihong;WANG Zhongjun;WANG Pu;HAI Ning;ZHANG Wanrong(School of Electronic and Information Engineering,Lanzhou Jiaotong University,Lanzhou730070,P.R.China;College of Electronic Information and Control Engineering,Beijing Univ.of Technol.,Beijing100124,P.R.China)
出处
《微电子学》
CAS
北大核心
2019年第2期188-192,共5页
Microelectronics
基金
国家自然科学基金资助项目(61574010
61006059
61006044)
关键词
有源电感
可调节
多频带
低功耗
active inductor
adjustable
multi band
low power
