摘要
采用ADS软件设计并仿真了一种应用于WiMax2标准的低噪声放大器.该低噪声放大器基于TSMC 0.13μmCMOS工艺,工作带宽为2.3 GHz～2.7GHz.在电路设计中采用噪声抵消技术降低CMOS管的电流噪声.使用共栅极结构进行输入匹配,使用电容进行输出匹配.偏置电路采用电流镜原理.使用ADS2006软件进行设计、优化和仿真.仿真结果显示,在2.3 GHz～2.7GHz带宽内,放大器的电源电压在1.2V时,噪声系数低于1.96dB,增益大于21.8dB,整个电路功耗为9mW.
Abstract
Design of a 2.3 GHz ～2.7 GHz CMOS LNA using TSMC 0.13μm process for WiMax2.Common-gate structure was used in the input stage which leads to maintaining good linearity with better input matching.Capacitance was used for output matching.Simulation and optimization of LNA have been done by ADS2006.Results show noise figure of the amplifier is below 1.96dB under working voltage of 1.2V in 2.3 GHz ～2.7GHz,gain is greater than 21.SdB and power consumption is 9mW.
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维普
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