Dual-band negative-permittivity metamaterial using crossed loop resonator
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This paper presents a novel dual-band negative-permittivity metamaterial (MTM). The MTM is based on a crossed loop resonator (CLR) which exhibits negative-permittivity property at 4.85–5.58 GHz and 9.34–15.48 GHz frequency bands under the normal incidence of EM wave. The MTM shows epsilon-very-large (EVL) and mu-near-zero (MNZ) properties near the resonance frequencies (4.85 GHz and 9.34 GHz). Thus, low-impedance characteristics are obtained around the resonance frequencies of the CLR. The CLR MTM is insensitive to the polarization and incident angle of the imposed EM wave (for incident angle < 20°). This MTM, which is polarization and incident angle independent, can be used for gain enhancement of magnetic dipole antennas, design of filters and ultrathin microwave absorbers.
- 11.Z. He, J. Jin, Y. Zhang, Y. Duan, Design of a two-dimensional “T” shaped metamaterial with wideband, low loss. IEEE Trans. Appl. Superconduct. 29(2), 1100204(1)–(4) (2019)Google Scholar
- 14.S. Pandit, A. Mohan, P. Ray, Metamaterial-inspired low-profile high-gain slot antenna. Microw. Opt. Technol. Lett. 2019, 1–6 (2019)Google Scholar
- 18.I. Bahl, P. Bhartia, Microwave solid state circuit design, 2nd edn. (New York, Wiley, 2003)Google Scholar