2.4 GHz CMOS低噪声放大器设计

doi:10.16088/j.issn.1001-6600.2016.03.002

Abstract

Abstract: In this paper, two narrowband low-noise amplifiers (LNAs) are designed, which can operate in the 2.4 GHz frequency with TSMC 0.18 μm CMOS technology. One of the circuit structures is Cascode structure with current-reuse technique,and the other is folded Cascode structure with forward-body-bias technique. The simulation results of the designed narrowband LNAs show that,in the 2.4 GHz frequency,Cascode LNA consumes 4.9 mW from a 1.5 V DC supply,gain is 23.5 dB,input and output reflection coefficients are -16.9 dB and -16.3 dB,noise figure is 0.72 dB and IIP3 is 3.12 dBm; and the folded Cascode LNA can operate under 0.5 V DC supply,power consumption is 1.83 mW,gain is 23.8 dB,input and output reflection coefficients are -28.2 dB and -24.8 dB,noise figure is 0.62 dB and IIP3 is -7.65 dBm, which is suitable for low voltage and low power applications.

Key words: CMOS, narrowband, low-noise amplifier, Cascode, current-reuse, forward-body-bias

CLC Number:

TN432

CHENG Yuanyao, SONG Shuxiang, JIANG Pinqun. Design of 2.4 GHz CMOS Low-noise Amplifier[J].Journal of Guangxi Normal University(Natural Science Edition), 2016, 34(3): 7-13.

References

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