Radiation Pattern Synthesis of the Coupled almost Periodic Antenna Arrays Using an Artificial Neural Network Model

Bilel, Hamdi; Taoufik, Aguili

doi:10.3390/electronics11050703

Open AccessFeature PaperArticle

Radiation Pattern Synthesis of the Coupled almost Periodic Antenna Arrays Using an Artificial Neural Network Model

by

Hamdi Bilel

^*

and

Aguili Taoufik

Communication System Laboratory Sys’Com, National Engineering School of Tunis (ENIT), University of Tunis El Manar, BP 37, Le Belvédère, Tunis 1002, Tunisia

^*

Author to whom correspondence should be addressed.

Electronics 2022, 11(5), 703; https://doi.org/10.3390/electronics11050703

Submission received: 4 January 2022 / Revised: 8 February 2022 / Accepted: 13 February 2022 / Published: 24 February 2022

(This article belongs to the Special Issue Evolutionary Antenna Optimization)

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Abstract

This paper proposes radiation pattern synthesis of almost periodic antenna arrays including mutual coupling effects (extracted by Floquet analysis according to our previous work), which in principal has high directivity and a large bandwidth. For modeling the given structures, the moment method combined with the generalized equivalent circuit (MoM-GEC) is proposed. The artificial neural network (ANN), as a powerful computational model, has been successfully applied to antenna array pattern synthesis. Our results showed that multilayer feedforward neural networks are rugged and can successfully and efficiently resolve various distinctive, complex almost periodic antenna patterns (with different source amplitudes) (in particular, both periodic and randomly aperiodic structures are taken into account). An ANN is capable of quickly producing the synthesis results using generalization with the early stopping (ES) method. Significant advantages in speed and memory consumption are achieved by using this method to improve the generalization (called early stopping). To justify this work, several examples are shown and discussed.

Keywords: radiation pattern synthesis; almost periodic structures; mutual coupling effects; artificial neural network (ANN); early stopping method

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MDPI and ACS Style

Bilel, H.; Taoufik, A. Radiation Pattern Synthesis of the Coupled almost Periodic Antenna Arrays Using an Artificial Neural Network Model. Electronics 2022, 11, 703. https://doi.org/10.3390/electronics11050703

AMA Style

Bilel H, Taoufik A. Radiation Pattern Synthesis of the Coupled almost Periodic Antenna Arrays Using an Artificial Neural Network Model. Electronics. 2022; 11(5):703. https://doi.org/10.3390/electronics11050703

Chicago/Turabian Style

Bilel, Hamdi, and Aguili Taoufik. 2022. "Radiation Pattern Synthesis of the Coupled almost Periodic Antenna Arrays Using an Artificial Neural Network Model" Electronics 11, no. 5: 703. https://doi.org/10.3390/electronics11050703

APA Style

Bilel, H., & Taoufik, A. (2022). Radiation Pattern Synthesis of the Coupled almost Periodic Antenna Arrays Using an Artificial Neural Network Model. Electronics, 11(5), 703. https://doi.org/10.3390/electronics11050703

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Radiation Pattern Synthesis of the Coupled almost Periodic Antenna Arrays Using an Artificial Neural Network Model

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