GDL

Journal from gdlhub / 2021-09-04 15:47:59
Oleh : Lahcen Aguni, Samira Chabaa, Saida Ibnyaich, Abdelouhab Zeroual, Telkomnika
Dibuat : 2021-01-27, dengan 1 file

Keyword : artificial neural networks; K-fold cross validation; ultra-wideband antenna;
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/15912
Sumber pengambilan dokumen : web

In this paper we propose to predict the notch frequency of an ultra-wideband (UWB) antenna which operates in the frequency band from 3.85 GHz to 12.38 GHz. The prediction of the notch frequency in order to avoid interferences between (WLAN) IEEE802.11a and HIPERLAN/2 WLAN applications and UWB technology is achieved using the artificial neural networks (ANN) technique. The developed ANN is optimized with the help of K-fold cross validation method which allows us to divide the datasets into 10 subsets in the training phase. The simulated datasets are generated by controlling high frequency structural simulator (HFSS) from MATLAB using a VB script. The performance of the ANN technique is assessed using some statistical criteria. During the training process, the mean absolute percentage error (MAPE) between the simulated and the predicted ANN notch frequencies is 0,125. A comparison between simulated, theoretical, and ANN results has been achieved during the test and validation process, good accuracy is obtained between the simulated and the ANN predictions. The proposed UWB antenna exhibits a notch band from 5.1 GHz to 6.0 GHz with a notch frequency of approximately 5.51 GHz.

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