A Low Noise Amplifier with Low Voltage, Low Power Consumption, and Improved Linearity at 5 GHz

Zafarian, Amin; Kalali Fard, Iraj; Golmakani, Abbas; Shirazi, Jalil

Document Type : Review Article

Authors

¹ Electrical Engineering Department, Islamic Azad University Branch Of Arak, Iran

² RWTH Aachen University

³ Department of Electrical Engineering, Sadjad University of Technology, Mashhad

⁴ Electrical Engineering Department, Islamic Azad University Branch Of Gonabad, Iran Country Iran

Abstract

In this paper a low-noise amplifier with 0.6 V supply voltage, low power consumption, and improved linearity at= 5 GHz is introduced in 0.18 µm CMOS technology. By using a feed-forward structure and a multi-gated configuration in the proposed circuit, linearity of the circuit is significantly improved, while only 122 µW more power is consumed compared to conventional folded cascode structure, and the other circuit parameters are similar. In addition, the Volterra series is used for nonlinear analysis and to evaluate the linearity improvement of the proposed circuit. There is also a noteworthy superiority over compared published works in the figure of merit. The suggested low-noise amplifier (LNA) at 1.28 mW DC power consumption provides 9.6 dB gain and a noise figure of 3.24 dB. It is achieved whilst the third order interception point has been improved by 10 dB and equals 0.0 dBm. In the operating frequency the circuit displays satisfactory input and output impedance matching. Finally, throughout the whole circuit bandwidth input and output isolation is below −27 dB.

Keywords

References

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Majlesi Journal of Electrical Engineering

A Low Noise Amplifier with Low Voltage, Low Power Consumption, and Improved Linearity at 5 GHz

References

References

Volume 11, Issue 1 - Serial Number 1
March 2017

A Low Noise Amplifier with Low Voltage, Low Power Consumption, and Improved Linearity at 5 GHz

References

References

Volume 11, Issue 1 - Serial Number 1March 2017

Volume 11, Issue 1 - Serial Number 1
March 2017