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一种2.4GHz的低功耗低噪声射频接收前端电路设计

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根据无线通信的技术要求,设计了一种工作在2.4 GHz的低功耗、低噪声的射频接收器前端电路.利用一种带动态箝位和跨导增强技术的低噪声放大器(LNA),降低功耗的同时保持高增益和稳定性,避免了电路在工艺、电压、温度(PVT)下性能下降的问题;采用一种二阶前馈补偿的运算放大器(OTA),有效拓展了带宽,保证了跨阻放大器(TIA)在高频时具有低输入阻抗,降低了整体电路的噪声.版图仿真结果表明,基带频率为1 MHz时,在1V电源供电下,所设计电路实现了40 dB的转换增益和-15 dB的输入匹配,双边带噪声系数(NF)为4.9 dB,输入三阶交调点(IIP3)大于-24 dBm,总静态功耗为3.6 mW.
A design of 2.4 GHz low-power consumption and low-noise RF receiver front-end circuit
According to the technical requirements of wireless communication,this paper designs a low-pow-er consumption,low-noise RF receiver front-end circuit operating at 2.4 GHz.A low-noise amplifier(LNA)with dynamic clamping and transconductance enhancement techniques is utilized to reduce power consumption while maintaining high gain and stability,thereby avoiding the problem of circuit performance degradation under pro-cess,voltage and temperature(PVT).Additionally,a two-stage feedforward compensated operational transconduc-tance amplifier(OTA)is employed to extend the bandwidth effectively,and ensure that the transimpedance ampli-fier(TIA)maintains low input impedance at high frequencies,thus reducing the noise of overall circuit.The lay-out simulation results show that at a baseband frequency of 1 MHz and a supply voltage of 1V,the proposed de-sign of circuit achieves a conversion gain of 40 dB,an input match of-15 dB,a double-sideband noise figure(NF)of 4.9 dB,a third-order input intermodulation point(IIP3)more than-24 dBm,and a total quiescent power con-sumption of 3.6 mW.

2.4 GHz RF receiverreceiver front-endlow power consumptionlow noise

杭子杰、蔡孟冶、姜岩峰

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江南大学集成电路学院,江苏无锡 214122

2.4GHz射频接收器 接收前端 低功耗 低噪声

2024

空天预警研究学报
空军预警学院

空天预警研究学报

影响因子:0.39
ISSN:2097-180X
年,卷(期):2024.38(6)