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  • Open Access


    Multi-Mode Frequency Reconfigurable Conformal Antenna for Modern Electronic Systems

    Abir Zaidi1, Esraa Mousa Ali2, Abdullah G. Alharbi3, Salah Ud-Din Khan4, Mohammad Alsharef5, Mohammed S. Alzaidi5, Sherif S. M. Ghoneim5,*

    CMC-Computers, Materials & Continua, Vol.73, No.2, pp. 3861-3877, 2022, DOI:10.32604/cmc.2022.029889

    Abstract The article presents a miniaturized monopole antenna dedicated to modern flexible electronic systems. The antenna combines three fundamental properties in a single structure. Firstly, it is characterized by a compact size compared to the state-of-the-art literature with an overall size of 18 × 18 × 0.254 mm3, secondly, the proposed antenna integrates the reconfigurability function of frequency, produced by means of a Positive-Intrinsic-Negative (PIN) diode introduced into the radiating element. Thus, the antenna is able to switch between different frequencies and different modes, making it suitable to meet the ever-changing demands of communication systems. third, the antenna is equipped by More >

  • Open Access


    Novel Compact UWB Band Notch Antenna Design for Body-Centric Communications

    Sk Raziul Ahasan1, Kaisarul Islam1, Mohammad Monirujjaman Khan1,*, Mehedi Masud2, Gurjot Singh Gaba3, Hesham A. Alhumyani4

    Computer Systems Science and Engineering, Vol.40, No.2, pp. 673-689, 2022, DOI:10.32604/csse.2022.019585

    Abstract In this paper, a novel and compact ultra-wideband (UWB) antenna with band-notched characteristics for body-centric communication is examined and implemented. The shape of the designed antenna looks like a ‘swan’ with a slotted patch. The performance parameters of this antenna for both the free space and on-body scenario for body-centric communication are analyzed and investigated through the simulation process using Computer Simulation Technology (CST). This antenna can avoid the interference caused by Wireless Local Area Network (WLAN) (5.15–5.825 GHz) and Worldwide Interoperability for Microwave Access (WiMAX) (5.25–5.85 GHz) systems with a band notch because of… More >

  • Open Access


    A Compact Size 5G Hairpin Bandpass Filter with Multilayer Coupled Line

    Qazwan Abdullah1,2,*, Ömer Aydoĝdu2, Adeeb Salh3, Nabil Farah4, Md Hairul Nizam Talib4, Taha Sadeq5, Mohammed A. A. Al-Mekhalfi3, Abdu Saif6

    CMC-Computers, Materials & Continua, Vol.69, No.3, pp. 4025-4042, 2021, DOI:10.32604/cmc.2021.018798

    Abstract The multilayer structure is a promising technique used to minimize the size of planar microstrip filters. In the flexible design and incorporation of other microwave components, multilayer band-pass filter results in better and enhanced dimensions. This paper introduces a microstrip fifth-generation (5G) low-frequency band of 2.52–2.65 GHz using a parallel-coupled line (PCL) Bandpass filter and multilayer (ML) hairpin Bandpass filter. The targeted four-pole resonator has a center frequency of 2.585 GHz with a bandwidth of 130 MHz. The filters are designed with a 0.1 dB passband ripple with a Chebyshev response. The hairpin-line offers compact… More >

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