Potentialities of hybrid arrays with parasitic elements

Oueslati, Aymen; Menudier, Cyrille; Thévenot, Marc; Monédière, Thierry

doi:10.1109/eucap.2014.6902151

Cited by 9 publications

(2 citation statements)

References 4 publications

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“…Several other methods of synthesis of coupled periodic and aperiodic arrays have shown their reliability in electromagnetic calculations [17,18], one of which is MoM GeC, which we use as a comparison method herein.…”

Section: Introductionmentioning

confidence: 99%

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

Hamdi

Aguili

2022

Electronics

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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.

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Section: Introductionmentioning

confidence: 99%

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

Hamdi

Aguili

2022

Electronics

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“…Because of their cost, they are often limited to spatial missions or military applications. To overcome these limitations, a hybrid antenna array is proposed in [2] derived from the original one from Harrington [3] and is depicted in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Performances of Magneto-Electric Dipoles in an Antennas Array with a Reduced Beam Forming Network

Kaddour

Milbrandt

Menudier

et al. 2019

2019 49th European Microwave Conference (EuMC)

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In this paper, we propose an architecture of array based on parasitic element antennas with multiple excitations. The objective is to improve the directivity of these antenna arrays using Magneto-Electric Dipoles (MED). In this contribution, we consider a 49 (7 X 7) element array with only 8% of the elements directly fed. The others are fed by couplings and they are loaded on reactive values (ideally). The proposed radiating element is compared to a stacked patch design in the same reduced feed network configuration. A maximum directivity of 20 dBi is obtained, allowing several reconfigurable antenna scenarios based on such as design.

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