一种采用有源电感的可调增益小面积超宽带低噪声放大器
发布时间：2019-06-29 15:32
【摘要】：设计了一款采用可调谐有源电感(TAI)的可调增益的小面积超宽带低噪声放大器(LNA),输入级采用共基极结构,输出级采用射随器结构,分别实现了宽带输入和输出匹配;放大级采用带有反馈电阻的共射共基结构以取得宽的带宽,并采用TAI作负载,通过调节TAI的多个外部偏压使LNA的增益可调。结果表明,该LNA在2 GHz~9 GHz的频带内,通过组合调节有源电感调节端口的偏压可实现S21在16.5 d B~21.1 d B的连续可调;S_(11)小于-14.7 d B;S_(22)小于-19.3 d B;NF小于4.9 d B;芯片面积仅为0.049 mm~2。
[Abstract]:A small area ultra-wide band low noise amplifier (LNA), with adjustable gain of tunable active inductor (TAI) is designed, which adopts common base structure, output stage adopts emitter structure to realize broadband input and output matching, and amplifier stage adopts common emission common base structure with feedback resistance to obtain wide bandwidth, and TAI is used as load to adjust the gain of LNA by adjusting multiple external bias of TAI. The results show that the LNA can be adjusted continuously at 16.5 dB 鈮，
本文编号：2507928
[Abstract]:A small area ultra-wide band low noise amplifier (LNA), with adjustable gain of tunable active inductor (TAI) is designed, which adopts common base structure, output stage adopts emitter structure to realize broadband input and output matching, and amplifier stage adopts common emission common base structure with feedback resistance to obtain wide bandwidth, and TAI is used as load to adjust the gain of LNA by adjusting multiple external bias of TAI. The results show that the LNA can be adjusted continuously at 16.5 dB 鈮，
本文编号：2507928
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