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  • Open Access


    Linearly Polarized Millimeter Wave Reflectarray with Mutual Coupling Optimization

    M. Inam1, M. H. Dahri2, M. R. Kamarudin3, A. Y. I. Ashyap3, M. H. Jamaluddin4, N. H. Sulaiman5, M. A. Khan6, Z. A. Shamsan7,*, K. Almuhanna7, F. Alorifi7

    CMC-Computers, Materials & Continua, Vol.72, No.2, pp. 2397-2410, 2022, DOI:10.32604/cmc.2022.025650

    Abstract This work provides the design and analysis of a single layer, linearly polarized millimeter wave reflectarray antenna with mutual coupling optimization. Detailed analysis was carried out at 26 GHz design frequency using the simulations of the reflectarray unit cells as well as the periodic reflectarray antenna. The simulated results were verified by the scattering parameter and far-field measurements of the unit cell and periodic arrays, respectively. A close agreement between the simulated and measured results was observed in all the cases. Apart from the unit cells and reflectarray, the waveguide and horn antenna were also fabricated to be used in the… More >

  • Open Access


    A Compact 28 GHz Millimeter Wave Antenna for Future Wireless Communication

    Shahid Khan1,2, Adil Bashir3, Haider Ali4, Abdul Rauf5, Mohamed Marey6,*, Hala Mostafa7, Ikram Syed8

    CMC-Computers, Materials & Continua, Vol.72, No.1, pp. 301-314, 2022, DOI:10.32604/cmc.2022.023397

    Abstract This article presents a novel modified chuck wagon dinner bell shaped millimeter wave (mm-wave) antenna at 28 GHz. The proposed design has ultra-thin Rogers 5880 substrate with relative permittivity of 2.2. The design consists of T shaped resonating elements and two open ended side stubs. The desired 28 GHz frequency response is achieved by careful parametric modeling of the proposed structure. The maximum achieved single element gain at the desired resonance frequency is 3.45 dBi. The efficiency of the proposed design over the operating band is more than 88%. The impedance bandwidth achieved for −10 dB reference value is nearly… More >

  • Open Access


    Helix Inspired 28 GHz Broadband Antenna with End-Fire Radiation Pattern

    Hijab Zahra1, Wahaj Abbas Awan2, Niamat Hussain3,*, Syed Muzahir Abbas1,4, Subhas Mukhopadhyay1

    CMC-Computers, Materials & Continua, Vol.70, No.1, pp. 1935-1944, 2022, DOI:10.32604/cmc.2022.019495

    Abstract This paper presents the design and characterization of a via free planar single turn helix for 28 GHz broadband applications. The proposed antenna is designed using ROGERS RO4003 material, having a simple structure and end-fire radiation pattern. The antenna comprises of a compact dimension of 1.36 λ0 × 0.9 λ0 with a thickness of 0.0189 λ0 (where λ0 is the free-space wavelength at the central frequency of 28 GHz). Parametric study has been carried out to investigate the impact of key design parameters and to achieve an optimum design. Results show a good agreement between the simulated and measured results.… More >

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