Yazar "Hussein, Humam" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Miniaturized Antenna Array-Based Novel Metamaterial Technology for Reconfigurable MIMO Systems
    (Mdpi, 2023) Hussein, Humam; Atasoy, Ferhat; Elwi, Taha A.
    In this work, a highly miniaturized microstrip antenna array based on two elements is proposed for multiple inputs multiple outputs (MIMO) application systems at sub-6 GHz frequency bands. The antenna is structured from a meander line in conjugate with an interdigital capacitor when excited through the monopole basic antenna. The proposed antenna elements are separated with a Minkowski factor-shaped metamaterial (MTM) column to achieve a separation distance (D) of 0.08 & lambda; at 3 GHz when printed on an FR-4 substrate. Later on, the antenna performance in terms of bandwidth and gain is controlled using a photonic process based on optical active switches based on light-dependent resistances (LDR). Therefore, the reconfiguration complexity with such a technique can be eliminated significantly without the need for a biasing circuit. The antenna design was conducted through several parametric studies to arrive at the optimal design that realizes the frequency bandwidth between 3 and 5.5 GHz with a maximum gain of about 4.5 dBi when all LDR terminals are off. For a wireless channel performance study-based massive MIMO environment, the proposed antenna is suitable to be configured in arrays of 64 x 64 elements. From this study, it was found the maximum bit error rate (BER) does not exceed 0.15 with a channel capacity (CC) of 2 Gbps. For validation, the antenna was fabricated based on two elements and tested experimentally. Finally, it was revealed that the measured results agree very well with simulations after comparing the theoretical calculations with the measured data.
  • Küçük Resim Yok
    Öğe
    A Novel MIMO Antenna Integrated With a Solar Panel and Employing AI-Equalization for 5G Wireless Communication Networks
    (Ieee-Inst Electrical Electronics Engineers Inc, 2024) Hussein, Humam; Abd Elmunim, Nouf; Atasoy, Ferhat; Virdee, Bal S.; Elwi, Taha A.; Rashid, Nasr; Jayanthi, Renu Karthick Rajaguru
    This paper presents a novel MIMO antenna array configuration that incorporates metamaterial isolation surfaces to enhance overall performance. It was demonstrated that the directivity of this antenna array can be precisely electronically reconfigured using PIN diode switches. Additionally, the feasibility of integrating solar panels with the proposed MIMO antenna array is shown. Adopting solar panels in 5G base stations is expected to reduce dependency on traditional grid power sources, thereby decreasing energy usage and operational expenses, and supporting the goal of achieving netzero emissions in communication systems. Furthermore, the effectiveness of an artificial intelligence (AI)-enabled equalizer in mitigating degradation in channel capacity caused by signal power fluctuations was demonstrated, thereby enhancing the reliability and efficiency of wireless communication systems. The multifaceted benefits of combining these technologies were demonstrated.