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2.4GHz线性功率放大器的分析与设计

更新时间:2020-10-20 01:14:56 大小:228K 上传用户:gsy幸运查看TA发布的资源 标签:功率放大器 下载积分:2分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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该文介绍了基于SMIC 0.18μm CMOS工艺工作于2.4GHz功率放大器的设计方法,并给出了仿真结果。电路采用两级放大的结构,驱动级采用自偏置Cascode结构,为了保证驱动级有足够的线性度,偏置电压采用了自适应结构,使偏置电压随着输入功率的不同而变化,保证了放大器的线性度并提高了功率附加效率,功率级采用共源结构以达到较大的输出功率。仿真结果显示,在2.4GHz频率下,放大器功率增益为25dB,输出1dB压缩点约为22dBm,功率附加效率为37%。

A 2.4GHz CMOS power amplifier(PA) was designed based on SMIC's 0.18 μm RF-CMOS technology,and simulation results were presented.A two-stage amplifier structure is proposed.In order to improve linearity,the self-bias Cascode structure with self-adjust structure is utilized to the drive stage to make the bias voltage change with input signal power.So that the linearity increases and PAE are improved as well.The power stage uses CMOS with common source to get large output power.The measured results show that the proposed PA has a power gain of 25dB,P1dB of 22dBm and a power added efficiency(PAE) of 37% at 2.4V supply voltage.

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2.4GHz线性功率放大器的分析与设计.pdf 228K

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