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A 0.5 V Area-Efficient Transformer Folded-Cascode CMOS Low-Noise Amplifier

机译:面积为0.5 V的高效变压器折叠共源共栅CMOS低噪声放大器

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摘要

A 0.5 V transformer folded-cascode CMOS low-noise amplifier (LNA) is presented. The chip area of the LNA was reduced by coupling the internal inductor with the load inductor, and the effects of the magnetic coupling between these inductors were analyzed. The magnetic coupling reduces the resonance frequency of the input matching network, the peak frequency and magnitude of the gain, and the noise contributions from the common-gate stage to the LNA. A partially-coupled transformer with low magnetic coupling has a small effect on the LNA performance. The LNA with this transformer, fabricated in a 90 nm digital CMOS process, achieved an S_H of -14 dB, NF of 3.9 dB, and voltage gain of 16.8 dB at 4.7 GHz with a power consumption of 1.0 mW at a 0.5 V supply. The chip area of the proposed LNA was 25% smaller than that of the conventional folded-cascode LNA.
机译:提出了一个0.5 V变压器折叠共源共栅CMOS低噪声放大器(LNA)。通过将内部电感器与负载电感器耦合来减小LNA的芯片面积,并分析了这些电感器之间的磁耦合效应。磁耦合降低了输入匹配网络的谐振频率,增益的峰值频率和幅度以及从共栅级到LNA的噪声贡献。具有低磁耦合的部分耦合变压器对LNA性能的影响很小。采用90 nm数字CMOS工艺制造的带有该变压器的LNA在4.7 GHz时的S_H为-14 dB,NF为3.9 dB,电压增益为16.8 dB,在0.5 V电源下的功耗为1.0 mW。提议的LNA的芯片面积比常规折叠共源共栅LNA的芯片面积小25%。

著录项

  • 来源
    《IEICE Transactions on Electronics》 |2009年第e92acn4期|564-575|共12页
  • 作者单位

    Division of Electrical, Electronics and Information Engineering, Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan;

    Division of Electrical, Electronics and Information Engineering, Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan;

    Division of Electrical, Electronics and Information Engineering, Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan;

    Division of Electrical, Electronics and Information Engineering, Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan;

    Division of Electrical, Electronics and Information Engineering, Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan;

    Division of Electrical, Electronics and Information Engineering, Graduate School of Engineering, Osaka University, Suita-shi, 565-0871 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CMOS; low-noise amplifier (LNA); low voltage; transformer;

    机译:CMOS;低噪声放大器(LNA);低电压;变压器;
  • 入库时间 2022-08-18 00:27:30

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