Cover
Vol. 22 No. 1 (2026)

Published: June 15, 2026

Pages: 512-520

Original Article

Enhancing Communication Technologies with Advanced Optimization of 5 GHz Low Noise Amplifiers

Taha Naufal Fadhil 1 A. Z. Yonis 1
1 Electronic Engineering Department, College of Electronics Engineering, Nineveh University, Mosul, Iraq
History
  • Received: June 2, 2024
  • Revised: August 5, 2024
  • Accepted: September 23, 2024
  • Available Online: June 15, 2026
DOI

https://doi.org/10.37917/ijeee.22.1.45

Abstract

Radio frequency integrated circuits (RFICs) are widely used in wireless technology systems. Low-noise amplifiers, especially in the 5 GHz frequency range, are vital parts of contemporary wireless communication systems. Research on 5 GHz low-noise amplifiers aims to improve the performance of these amplifiers by addressing issues related to noise, gain, and power efficiency. Low-noise amplifiers are used in many different applications and are essential for developing more effective, efficient, and balanced wireless communication systems. The paper presents a wideband low-noise amplifier (LNA) implemented in a 5 GHz (Low-Noise Amplifier) for 5G Wi-Fi applications. It is driven by a 1.8 V supply. To increase the voltage gain and reduce the power consumption, the circuit has a common source layout and is optimized to reduce the noise figure. Single-stage common source decomposition and inductive source decomposition techniques are also used to match the circuit with the source impedance. Genetic algorithm is also used to optimize the circuit operation. The genetic algorithm has been shown to significantly reduce the noise in the low-noise amplifier circuit, which greatly improves the signal quality. The algorithm has increased the gain of the circuit, making it more sensitive to signals and enhancing its ability to process diverse signals. The proposed LNA showed a total current of 2 mA and a minimum noise figure of 1.107 dB with a high voltage gain of 21.86 dB and a power consumption of 3.6 mW. I expect the proposed LNA to be suitable for 5G Wi-Fi applications in the GHz band.

Keywords

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