2.8~8.5 GHz 全集成高增益低功耗超宽带低噪声放大器设计

doi:10.16088/j.issn.1001-6600.2017.02.002

Abstract

Abstract: In order to improve the gain of low noise amplifier without increasing power consumption, this paper presents a fully integrated high gain low power UWB low noise amplifier by introducing current reuse technology and putting the bias tube as amplifier tube. The TSMC 0.18 μm CMOS technology and Cadence software are used to carry out the pre-simulation and post-simulation of the low noise amplifier circuit. The simulation result shows that the forward gain(S21)is from 18.2 dB to 19.9 dB over the 2.8~8.5 GHz operating band, the value of noise figure(NF) ranges from 3.05 dB to 4.1 dB, the input return loss (S11) and the output return loss (S22) both are below -10 dB, the group delay ranges from 130 ps to 320 ps and the IIP3 is -12.16 dBm at 6 GHz. With a 1.5 V voltage supply, the LNA has an overall power consumption(PD)of 11.7 mW, the design target has achieved. This low noise amplifier has the characteristics of high gain and low power consumption, which can be used in receivers with higher requirements for gain and power.

Key words: high gain, low power, ultra-wide-band, LNA, current reuse

CLC Number:

TN722.3

ZHOU Shu, JIANG Pinqun, SONG Shuxiang. Design of a 2.8 to 8.5 GHz High Gain, Low Powerand Fully Integration UWB LNA[J].Journal of Guangxi Normal University(Natural Science Edition), 2017, 35(2): 9-16.

References

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Design of a 2.8 to 8.5 GHz High Gain, Low Powerand Fully Integration UWB LNA

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