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Year 2022, Volume: 40 Issue: 3, 491 - 499, 09.10.2022

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Surrogate based design optimization of low noise amplifier for ISM band

Year 2022, Volume: 40 Issue: 3, 491 - 499, 09.10.2022

Abstract

Design optimization of microwave circuits is a crucial matter for microwave engineers. For the last decades, researchers had been studying surrogate models for a computationally efficient design optimization process. Artificial Intelligence based algorithms had been used for modelling of complex microwave stages such as antenna, amplifiers and frequency selective surfaces. In this study, design optimization of a Low Noise Amplifier (LNA) based on surrogate models for both transistor stage and input & output matching circuits had been presented. Support Vector Regression Machine had been used for creating surrogate models of a microwave transistor and a non-uniform transmission line for having a fast and accurate LNA design optimization process alongside a low profile and high performance LNA using on-uniform transmission lines. By using this methodology, not only designer can create a mapping for missing points in the sparse sample S parameter data points provided by manufacturers but also the overall simulation duration can be significantly reduced thanks to the fast nature of surrogates compared to EM simulators. Here, the proposed surrogate models had been used alongside of Particle Swarm Optimization algorithm to determine optimal geometrical values of input/output matching networks. Then the obtained designs are prototyped and measured. The measured results are also compared with the performance results of counterpart design in literature. As for results, not only the proposed methodology is an effective, fast and reliable method for computationally efficient design optimization process of LNA but also provides better results than the counterpart design in literature.

References

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Details

Primary Language English
Subjects Engineering
Journal Section Research Articles
Authors

Mehmet Ali Belen This is me 0000-0001-5588-9407

Filiz Güneş This is me 0000-0002-0949-3687

Publication Date October 9, 2022
Submission Date January 2, 2021
Published in Issue Year 2022 Volume: 40 Issue: 3

Cite

Vancouver Belen MA, Güneş F. Surrogate based design optimization of low noise amplifier for ISM band. SIGMA. 2022;40(3):491-9.

IMPORTANT NOTE: JOURNAL SUBMISSION LINK https://eds.yildiz.edu.tr/sigma/