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  • Open Access

    ARTICLE

    Triple-Band Circularly Polarized Dielectric Resonator Antenna (DRA) for Wireless Applications

    Azuwa Ali1, Mohd Najib Mohd Yasin2,*, Ismahayati Adam2, Ali H. Rambe3, Mohd Haizal Jamaludin4, Hasliza A Rahim2, Corhan Cengiz5, Mohd Ibrahim Shapiai Abd. Razak6

    CMC-Computers, Materials & Continua, Vol.74, No.1, pp. 313-325, 2023, DOI:10.32604/cmc.2023.031706

    Abstract This paper proposes a new dielectric resonator antenna (DRA) design that can generate circularly polarized (CP) triple-band signals. A triple-band CP DRA antenna fed by a probe feed system is achieved with metal strips structure on side of DRA structure. The design start with conventional rectangular DRA with F shaped metal strips on DRA structure alongside the feed. Then, the F metal strip is enhanced by extending the length of the metal strip to obtain wider impedance bandwidth. Further improvement on the antenna performance is observed by improvised the conventional DRA structure. The method of removing part of DRA bottom… More >

  • Open Access

    ARTICLE

    Triple-Band Metamaterial Inspired Antenna for Future Terahertz (THz) Applications

    Adel Y. I. Ashyap1, S. Alamri2, S. H. Dahlan1,*, Z. Z. Abidin3, M. Inam Abbasi4, Huda A. Majid2, M. R. Kamarudin1, Y. A. Al-Gumaei5, M. Hashim Dahri6

    CMC-Computers, Materials & Continua, Vol.72, No.1, pp. 1071-1087, 2022, DOI:10.32604/cmc.2022.025636

    Abstract For future healthcare in the terahertz (THz) band, a triple-band microstrip planar antenna integrated with metamaterial (MTM) based on a polyimide substrate is presented. The frequencies of operation are 500, 600, and 880 GHz. The triple-band capability is accomplished by etching metamaterial on the patch without affecting the overall antenna size. Instead of a partial ground plane, a full ground plane is used as a buffer to shield the body from back radiation emitted by the antenna. The overall dimension of the proposed antenna is 484 × 484 μm2. The antenna's performance is investigated based on different crucial factors, and excellent results are… More >

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