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  • Volume 2015

    A Negative Refractive Index Metamaterial Structure for Antenna Gain Enhancement
    (International Journal of Engineering Works)

    Vol. 2, Issue 12, PP. 93-98, Dec. 2015
    Keywords: negative refractive index, metamaterial, microstrip antenna, gain

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    Abstract

    A microstrip patch antenna over which a 6 layer of metamaterial superstrate with the negative refractive index is proposed for the enhancement of gain over the conventional patch antenna The negative refractive index (NRI) property of superstrate covers the frequency range from 774 MHz to 974 MHz. The superstrate is placed 55 mm above the microstrip patch antenna. The function of the properties of negative refractive index is to gather the EM wave radiated from the antenna and the free space toward the normal direction of the antenna. An electromagnetic simulation software CST is used to study the characteristics of this metamaterial and the designe for the proposed antenna. The simulated result indicates that the gain of the proposed antenna is increased by 87.6% (2.32dB), in the desired frequency band 935 MHz to 960 MHz is also increased. Therefore, the gain of the antenna is effectively enhanced based on the negative refractive index metamaterial.

    Author

    K.A. Devi: INTI International University Nilai, Malaysia, kavurik.adevi@newinti.edu.my

    Ng Chun Hau: INTI International University Nilai, chunhau.ng@s.newinti.edu.my

    C. K. Chakrabarty: Universiti Tenaga Nasional Putrajaya Campus, Kajang, Malaysia, chandan@uniten.edu.my

    Norashidah Md. Din: Universiti Tenaga Nasional Putrajaya Campus, Kajang, Malaysia, norashidah @uniten.edu.my

    Kwong Chiew Foong: University of Nottingham Ningbo Campus, China, chiew-foong.kwong@nottingham.edu.cn

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    Cite

    K.A. Devi, Ng Chun Hau,C. K. Chakrabarty, Norashidah Md. Din, Kwong Chiew Foong, "A Negative Refractive Index Metamaterial Structure for Antenna Gain Enhancement"International Journal of Engineering Works, Vol. 2, Issue 12, PP. 93-98, Dec. 2015.

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