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A Dual-band Metasurface using Ring Resonator with Interdigital Capacitors

This paper proposes a dual-band metasurface using ring resonator with interdigital capacitors for antenna applications. With this metasurface, the resonant frequency and negative permittivity can be controlled and the size can be reduced. In this study, the metasurface will be placed behind the dipole to perform as a reflector. The simulated results show that the antenna gains are 7.86 dBi and 9.88 dBi at frequencies of 1.8 GHz and 3.7 GHz, respectively. The proposed metasurface can be applied for any antenna system design when high performance and compact size are desired.