Broadside gain and bandwidth enhancement of microstrip patch antenna using a MNZ-metasurface

Kwok L. Chung, Sarawuth Chaimool

    Research output: Contribution to journalArticlepeer-review

    50 Citations (Scopus)

    Abstract

    This article presents a metasurfaced patch antenna in which the metasurface acts as a superstrate/cover placed atop a 2.45-GHz patch antenna, at a small distance. The metasurface is a Mu-near-zero (MNZ) type, which gives a near-zero index of refraction. The MNZ metasurface consists of 4 x 4 double-closed-loop resonators printed on a thin FR4 dielectric slab. The proposed antenna is low-cost and low-profile, having overall dimensions of 0.86 λ x 0.86 λ x 0.07 λ. The simulation and experimental results confirm that the metasurfaced antenna not only has simultaneous enhancements on broadside gain and bandwidth, but also improves antenna efficiency.
    Original languageEnglish
    Pages (from-to)529-532
    Number of pages4
    JournalMicrowave and Optical Technology Letters
    Volume54
    Issue number2
    DOIs
    Publication statusPublished - 2012

    Keywords

    • metamaterials
    • microstrip antennas

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