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基于SMIC 0.13μm CMOS工艺,设计了一种应用于脉冲超宽带无线通信系统接收机的高增益低噪声放大器(LNA)。该LNA工作在6~9GHz频段,单端输入,差分输出,采用电容交叉耦合与电流复用技术提高了增益,实现了低功耗性能。仿真结果表明,LNA电路工作在7.5GHz中心频率时,增益高达46dB,噪声系数为3.05dB,输入端回波损耗为-12.5dB,输出端回波损耗为-16.7dB,在1.2V电源供电下的核心消耗功耗为16mW,核心电路面积仅为0.5mm2。
Based on the SMIC 0.13μm CMOS technology, a high gain and low noise amplifier (LNA) is designed for the receivers of pulsed UWB wireless communication systems. The LNA operates in the 6 ~ 9GHz frequency band, single-ended input, differential output, the use of capacitive cross-coupling and current multiplexing technology to increase the gain, to achieve low-power performance. The simulation results show that the LNA circuit operates at 7.5GHz center frequency with gain of 46dB, noise figure of 3.05dB, input return loss of -12.5dB and output return loss of -16.7dB. Under 1.2V power supply The core power consumption is 16mW, the core circuit area is only 0.5mm2.