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Research Article |

Design and Implementation of a Two-Frequency Power Amplifier without Interference for Wireless Communication

Author(s): Wael Saad Ahmed*, Nsaif Jasim Hadi Al-Chaabawi and Ahmed Atiyah Itwayya

Published In : International Journal of Electrical and Electronics Research (IJEER)        Volume 11, Issue 4

Publisher : FOREX Publication

Published : 07 November 2023

e-ISSN : 2347-470X

Page(s) : 979-987

DOI: https://doi.org/10.37391/ijeer.110415

Abstract

In this research paper, we will delve into a type of circuit known as a power amplifier. This circuit is designed to operate at two frequencies, allowing it to perform tasks at each frequency. The main goals of the design are to separate signals and ensure proper operation of the circuit in different modes. One notable feature of this power amplifier is its ability to work without any distortion, especially when both frequencies are used simultaneously. Achieving this has been made possible by combining a method that ensures signal termination with a strategy that enables their separation. To evaluate its performance, we conducted computer simulations as tests using both large signals. The findings indicate a 10.2 decibel increase in amplification, with an output power of 41.2 decibels measured in milliwatts (dBm) and an overall power efficiency of 40.2% at a frequency of 1.8 gigahertz. Furthermore, our research reveals that the suppression of signals for the 1.8 GHz band is reduced by 49 decibels compared to the original signal, while for the 2.6 GHz band, almost all traces of the second harmonic signal are completely eliminated. In addition, we propose a circuit that mitigates mixing outcomes and enhances linearity performance. The EDA software, Path Wave EM Design, is used for simulation purposes.

Keywords: Dual -Frequency Operation, Signal Division, Distortion-Free, Power Efficiency, Power Amplifier, Wireless Communication.




Wael Saad Ahmed*, University of Tikrit, Salahaddin, Iraq; Email: wael.alrawi@tu.edu.iq

Nsaif Jasim Hadi Al-Chaabawi, College of Engineering, Department of Petroleum, University of Misan, Amarah, Iraq

Ahmed Atiyah Itwayya, Ministry of Electricity General Company for Southern Electricity Distribution – Maysan Branch

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Wael Saad Ahmed, Nsaif Jasim Hadi Al-Chaabawi, and Ahmed Atiyah Itwayya (2023), Design and Implementation of a Two-Frequency Power Amplifier without Interference for Wireless Communication . IJEER 11(4), 979-987. DOI: 10.37391/ijeer.110415.