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首页> 外文期刊>Optical and Quantum Electronics >Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications
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Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications

机译：Miniaturization and performance enhancement of super wide band four element MIMO antenna using DNG metamaterial for THz applications

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摘要

A compact semi-hexagonal-shaped MIMO antenna loaded with a planar SRR (split-ring resonator) structure is presented for Terahertz applications. The single radiating element consists of a semi-hexagonal shape metallic patch loaded with SRR-CC (Split ring Resonator-Connected C shape) metamaterial unit cell to enhance the impedance bandwidth as well as gain of the proposed antenna. The proposed antenna element can be easily extended into two-port and four-port MIMO antenna configurations. Four radiating elements of the proposed antenna are printed on 122.4*122.4 mu m(2) quartz substrate having a thickness of 10 mu m. The radiating elements are placed orthogonally to achieve high isolation and miniaturization in the MIMO system. The proposed antenna exhibits super-wide impedance bandwidth (S-11 <= - 10 dB) in the range of 0.9-10.1 THz (with fractional bandwidth of 168 at f(0) = 5.5 THz) while isolation of antenna is more than 20 dB in the whole operating band. The peak gain of the antenna is 7.51 dBi with more than 95 radiation efficiency in the entire band. The stable radiation pattern, high gain, high radiation efficiency, and good diversity performance of the proposed antenna make it suitable for many THz applications such as breast cancer detection, sugar measurement, drug detection.

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