Solar systems are influenced by their functioning temperature, which is mainly a result of the ambient air temperature as well level sunlight. For this reason, we have proposed an intelligent autoregressive model based on multilayer neural networks with delayed exogenous input sequence representing Global Radiation (GSR) data to forecast Air Temperature (AT) values half hour scale in Marrakesh, Morocco, recorded during 2014. The developed will helps us monitor and overcome such problem...

Controlling the random nature of renewable energy sources such as solar radiation at ground, allows electric grid operators to better integrate it.In this paper, an intelligent datadriven model based on artificial neural network with autoregressive input sequence is developed forecast global (GSR) time series a half hour resolution in site Agdal, Marrakesh, Morocco.The database that used create was divided into two subsets.The first subset for training proposed data measured during year 2008...

Abstract In this paper, a novel design of miniature and broadband‐multiband coplanar waveguide‐fed planar antenna with symmetric quarter‐circular ground plane is suggested to realize multiband better performance. The experimental results show that the has achieved two bandwidths ( S 11 < −10 dB): lower band from 2.34 2.42 GHz centered around resonant frequency 2.38 upper broadband 3.16 6.57 resonating at 3.5 5.38 GHz, respectively. cover required bands: WiMAX WLAN frequencies 3.5/5.5...

A small filtering patch Antenna is presented in this work, it consists of a bandpass filter integrated with monopole radiating antenna. Utilizing Defected Microstrip and Ground Structures (DMS,DGS), slot implemented both the ground. The made up half-wavelength dual-stub resonators. This filtenna (filtering-antenna) designed for WLAN applications, operates 5.15-5.35 GHz frequency range, 5.22 resonant frequency.The structure on compact size 34.8 × 27.08 1.6 mm³ equivalent to...

This study presents a new dual-layer metasurface structure proposed to enhance the performance of circular patch antenna. A novel unit cell planar is characterized by nearly equal enhanced effective permeability and permittivity εr ≅ μr > 1 at resonant frequency. In addition, 5*5 array these cells are used as superstrate over antenna which fed 50 Ω microstrip line operating 2.45 GHz for improving performance. The gain increased creating an in-phase electric field area on top surface...

Nowadays, the studies that address solar radiation (SR) forecasting tend to focus on implementation of conventional techniques. This provides good results, but researchers should creation new methodologies help us in going further and boost prediction accuracy SR data. The prime aim this research study is propose an efficient deep learning (DL) algorithm can handle nonlinearities dynamic behaviors meteorological data, generate accurate real-time hourly global (GSR) data city El Kelaa des...

This paper present an UHF RFID Tag wideband dipole antenna implemented on the tag, chip used in this structure is a impinj Monza electronic with real and imaginary impedance of 28 Ω -148 respectively. designed using FR4 substrate following parameters: loss tangent δ=0.025, ε r 4.3 height 1.6mm. The simulation results proposed have good performance terms gain order to 2.22 dB reflection coefficient parameter (S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML"...

Trustworthy acquaintance and accurate solar radiation measurements are a condition for designing managing energy systems. Frequently, there substantial spatial temporal lacks of measures so that predictive approaches become interest. In the present paper, an ensemble learning approach is proposed based on deep neural network technique. The suggested applied to forecast hourly time series global related Marrakech, Morocco. For purpose, developed forecasting model was trained using seven years...

This paper present a design and miniaturization of rectangular patch antenna with balanced feed. The miniaturized for passive radio frequency identification (RFID) tag witch can operate in the ultra-high (UHF), resonant is 915MHz. simulation was performed High Frequency Structure Simulator Software (HFSS). has an acceptable results terms efficiency, size, return loss (S11), Input Impedance.

The tilt angle of solar systems affect directly the conversion radiation, regardless weather conditions. To extract maximum power from panels, sunlight should fall with a sharp angle. Therefore, optimum inclination fixed panels to horizontal plane be changed regularly every month and season. prime aim this study is offer for engineers designers an efficient model based on multi-input multi output (MIMO) Elman artificial neural network (EL-ANN). predict three components hourly radiation time...

A miniature bandpass hairpin filter using planar technology was described in this paper. It consists of three resonators folded a U-shape and coupled with each other. The have the same size <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$(40\ \times 2.3\times 0.035)$</tex> mm <sup xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> , they are printed on an RT/duroid-5880 dielectric substrate having permittivity...

A compact wide-band planar antenna is proposed using the metamaterial transmission line.The motivation of this study to overcome problem low bandwidth while designing a miniaturized antenna.The design consists rectangular patch and squareshaped split-ring resonator (SSSRR) on asymmetric ground plane.Strip lines are provided connect right plane obtain shunt inductances improve bandwidth.This has miniature physical size 20×28×1.6 mm 3 corresponding electrical 0.16λo × 0.23λo 0.013λo, where λo...

A miniaturized reconfigurable antenna with a hexagonal slot is presented. The motivation of this study to overcome the problem switching band minimum electronic components while designing antenna. property has been obtained using only two PIN diodes. suggested structure successfully permitted ability up three bands 2.36-2.81 GHz, 3.20-4.23 and 3.13-5.92 which well suitable for standard WLAN WiMAX 5.8/2.4/5.2 GHz 5.5/2.5/3.5 respectively. peck gain efficiency at resonant frequencies 2.58,...

In this paper, a meta-surface based on rectangular microstrip patch antenna for mobile RFID reader applications is presented, the structure consists of magneto-dielectric split ring resonators with high permeability material (μ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">eff</sub> = 8.07+j3.01) at 2.44 GHz, which placed antenna.The use proposed modified double slot resonator (MDRsRR) 6x6 array increases gain up to 4.28 dB. The obtained...

This paper proposes a compact 2*1 reader array antenna for RFID system having high directivity, good gain, and reflection coefficient. The structure consists of two main radiating rectangular patch antennas connected in parallel with common impedance (50 Ω). These patches are printed on an RT/duroid 5880 substrate possessing dielectric constant ε r equal to 2.2 0.0009 as loss tangent. It operates ISM (Industrial, Scientific Medical) band resonant frequency 5.8 GHz. is implemented size 38.77×...

Summary This work proposes an electrical compact triple‐bands antenna founded on a composite left‐/right‐handed approach. structure contains rectangular patch combined with two unit cells based the metamaterial properties that are used to produce wide lengths in miniature physical sizes. Thus, presented is designed lower resonant frequency and dimensions compared conventional antennas. The suggested has been produced top of FR4 substrate having tan δ = 0.022, εr 4.58, size 28 × 16 1.6 mm 3 ....

Abstract A new compact microstip filtering Diamond Antenna (DA) is presented in this article for possible applications the Fifth-Generation (5G) at n77-band (3.3 GHz- 4.2 GHz), such as, Fixed Satellite Service (FSS) which a radiocommunication system between fixed earth stations utilizing one or more satellites. The structure implemented on an FR4 Epoxy substrate wich has dielectric constant ϵr = 4.4, loss tangent tan(δ) 0.025 and thickness h equal to 1.6 mm. small size of 39.7×30×1.6 mm3...