Browsing by Author "Moniruzzaman, MD."

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    A Dual Band Y-Shape Monopole Antenna for 5G Wireless Application
    (INOE Publishing House, 2023-06-09) Chowdhury, MD. Zikrul Bari; Armghan, Ammar; Islam, Mohammad Tariqul; Hossain, Ismail; Rahman, MD. Naimur; Moniruzzaman, MD.; Majumder, Sarna; Samsuzzaman, Md.
    In this paper, a novel dual-band Y-shaped monopole patch antenna is proposed, designed, and fabricated for a 5G wireless application. The radiator patch of the antenna's wide and length was fabricated on an FR-4 substrate with the dimension of the proposed antenna of 27.88×23.67×1.58 mm3. The CST studio suite is utilized for all the virtual simulations and analyses regarding fabricated antennas. The study reveals that the fabricated antenna has a bandwidth of 6.20 GHz, covering 3.20-4.60 GHz and 5.10-9.90 GHz frequency ranges, respectively. The antenna has a nice S11 characteristic, excellent impedance matching, and an almost omnidirectional radiation pattern. The S11 is observed at -23.30 dB, and -26.60 dB for the resonate frequency of 3.75 GHz and 7.10 GHz, correspondingly, which covers two Malaysian 5G, frequency bands. The peak gain is 4.78 dB, and the maximum efficiency is 92%, accordingly to the whole frequency band. The VSWR is ideal at 1.02. Finally, the proposed antenna is an attractive solution for 5G wireless communication..
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    A Lightweight Slotted Elliptical Patch with Defected Ground Printed Monopole Antenna for Microwave Based Biomedical Imaging Applications
    (Daffodil International University, 22-10-22) Talukder, MD Siam; Islam, Mohammad Tariqul; Sobahi, Nebras; Moniruzzaman, MD.; Alam, MD. Mottahir; Ahsan, Tanveer; Samsuzzaman, MD
    This article describes the design of a new Slotted Elliptical Patch with Defected Ground Antenna (SEPDGA) for microwavebased imaging applications. The intended antenna comprises of a defective ground plane and multiple rectangular slotted ellipse-shaped patch. Multi-resonances can be exhibited by the designed antenna which merges to disclose the wideband spectrum. The experimentally verified antenna has a fractional bandwidth (FBW) of 79% and a functional frequency band of 1.3–3.0 GHz (< -10 dB). According to simulation-based outcomes, it operates between 1.4 -3.2 GHz and has an FBW of 78%. Additionally, the antenna prototype has achieved a highest gain of 4.9 dBi at 2.65 GHz and an efficiency peak of above 85%. In addition to demonstrating superior time domain behaviors as well as omnidirectional radiation properties across the entire operating spectrum. Featuring a compact size, decent gain, high fidelity, large band of operation and efficiency, as well as stable omnidirectional radiation characteristics, this antenna is perfect for applications in biomedical imaging.