摘要
基于SMIC 0.181μm CMOS工艺,设计一款可用于1GHz^2GHz射频接收机前端的低噪声放大器。放大器利用共栅结构实现输入阻抗匹配,采用噪声抵消技术实现低噪声,核心电路尺寸为600μm×650μm。仿真结果表明,在1GHz^2GHz频率范围内,输入反射系数小于-10dB,噪声系数低于3.63dB,输入1dB压缩点在1.414GHz为-6.93dBm,在1.8V电源电压下,主体电路的功耗为18.8mW。
Implemented in SMIC 0.18 μm CMOS technique,a low noise amplifier（LNA） for 1 GHz - 2GHz RF receiver frontend is designed.The proposed LNA uses common-gate structure for input impedance matching.The noise canceling technology is used for low noise.The LNA core has an area of 600μm ×50μm.The results of simulation show that,in the bandwidth of 1GHz-2GHz,the input reflection coefficient is less than- 10 dB,the noise figure is less than 3.63 dB,and the 1dB input compression point is-6.93 dBm at the 1.414 GHz.The power consumption of LNA is 18.8mW at 1.8V supply.
出处
《遥测遥控》
2015年第6期45-50,共6页
Journal of Telemetry,Tracking and Command
关键词
低噪声放大器
共栅
噪声抵消技术
Low noise amplifier
Common-gate
Noise canceling technology
