Yazar "Jameel, Maryam S." seçeneğine göre listele

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    A compact coplanar waveguide fed UWB antenna for energy harvesting applications
    (IEEE, 2021) Jameel, Maryam S.; Mezaal, Yaqeen Sabah; Atilla, Doğu Çağdaş; Hussein, Ehab
    A new monopole antenna design fed by the Coplanar Wave Guide (CPW) is proposed for energy harvesting applications using FR4 substrate. The antenna presented here functions with an impedance bandwidth of 10 GHz from 3.27 to 13.27 GHz. Dimensions in total are 27*25 mm2 . The antenna was designed with the help of the CST Microwave Studio 3D EM software simulation and analysis. It may be used for ultrawideband (UWB) and other radio systems.
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    Öğe
    Design of compact UWB antenna based on FSSIR feeder
    (2023) Jameel, Maryam S.; Mezaal, Yaqeen S.; Atilla, Doğu Çağdaş
    This study describes a new ultra-wideband slotted patch antenna. The antenna is mounted on an FR-4 substrate with a size of 27.2x14x1.5 mm(3) and a permittivity of 4.3. A slotted patch resonator, four-stage stepped impedance resonators (FSSIR) feeder, and a reduced ground plane are features of our new antenna design. The input reflection values are 31, 30, and 32 dB at resonant frequencies of 3.3, 5.75, and 7.1 GHz, respectively, with a bandwidth range of 2.91-9.13 GHz, as determined by the simulated S11 response. The antenna was designed using the CST Microwave Studio simulator. The consequences of S11 simulations and actual measurements coincide rather well.
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    Öğe
    Miniaturized coplanar waveguide-fed UWB antenna for wireless applications
    (MDPI, 2023) Jameel, Maryam S.; Mezaal, Yaqeen S.; Atilla, Doğu Çağdaş
    This study presents a compact ultra-wideband (UWB) antenna fed by a coplanar waveguide (CPW) with huge bandwidth for the demands of modern wireless communities. To overcome some technical limitations of the employed substrate and UWB antenna design, a slotted patch resonator was used to create and simulate this antenna based on Locked-Key topology. It has been printed on a 1.5 mm-thick FR4 substrate with a dielectric constant of 4.4. A feeder with characteristic impedances of 50 Ω has been employed. A CST electromagnetic simulator has been employed to simulate and analyze the antenna design. It is operated within the UWB spectrum with a bandwidth of 10.354 GHz, spanning 3.581 to 14 GHz. The overall surface area is 27 × 25 mm2. The gain and maximum efficiency within UWB are better than 3 dBi and 82%, respectively. The antenna is fabricated, and the simulated results are correlated with the measured ones. Finally, the equivalent circuit models for the antenna and rectifier circuit are simulated and measured.
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    Öğe
    Performance optimization of microstrip patch antenna using frequency selective surfaces for 60 GHz
    (Institute of Electrical and Electronics Engineers Inc., 2020) Hussein, Ehab D.; Qasem, Nidal; Jameel, Maryam S.; Ilyas, Muhammad; Bayat, Oğuz
    This paper introduces a design of a single rectangular Microstrip Patch Antenna (MPA) with inset feed at frequency of 60 GHz using a Frequency Selective Surface (FSS). After implanting the FSS in the single MPA, it is found that some parameters have been improved. The selected geometry was the Square Loop (SL) element in FSS which has the best performance over other simple shapes. This paper aims to introduce an improvement of the parameter of a MPA, particularly, the gain, return loss, and bandwidth. These improvements has been investigated using Computer Simulation Technology (CST) Microwave Studio (MWS) simulator. The design is performed for 60 GHz applications. The 60 GHz band suffers from severe attenuation due to propagation. The oxygen absorption and the free-space path loss happen at 60 GHz are presumed in this study. These combined factors result in a poor link budget. © 2020 IEEE.