ZHANG Hua-bin, LIU Ping, DENG Chun-jian, et al. Design of a Differential Lower Noise Amplifier Using SiGe BiCMOS Technology[J]. 2017, 34(5): 35-39.DOI:
Design of a Differential Lower Noise Amplifier Using SiGe BiCMOS Technology
确保电路的高性能; 同时选用JAZZ 0.35 m 1P4M锗硅BiCMOS工艺来制作.该放大器能有效地提供了50 Ω输入阻抗匹配且具备良好的温度特性.在频点2.5 GHz时
放大器的最大小信号电压增益为29.1 dB
噪声系数1.3 dB
输入/输出回波损耗都优于-11 dB
输入3阶交调点为-0.24 dBm.在直流电源电压3 V供应下
低噪声放大器消耗电流为3.7 mA.仿真结果表明
与其他文献相比
该放大器有更高的电压增益和更低的噪声
可以更加有效地应用于无线局域网及相关频点领域.
Abstract
A differential lower noise amplifier (LNA) for wireless local network (WLAN) in front-end receiver is presented
which is fabricated with a JAZZ 0.35 m 1P4M SiGe BiCMOS process. It can not only reject the common-mode noise signal in input port and but also depress circuit noise for using cascade topology
and realize its high performance. The LNA provides effectively a 50 Ωinput impedance matching and good temperature characteristic. At 2.5 GHz
the LNA exhibits a maximum small signal voltage gain of 29.1 dB
noise figure of 1.3 dB
input/output return loss better than -11 dB
and input IIP3 of -0.24 dBm
respectively. The LNA consumes 3.7 mA from a 3.0V DC supply. The simulation results show that
in comparison with the other LNAs
this LNA has higher voltage gain
lower noise and more efficaciously be utilized in WLAN and related fields.
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references
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