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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >High-gain compact rectangular dielectric resonator antenna using metamaterial as superstrate
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High-gain compact rectangular dielectric resonator antenna using metamaterial as superstrate

机译：使用超材料作为上层板的高增益紧凑型矩形介质谐振器天线

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摘要

A compact high-gain rectangular dielectric resonator antenna (RDRA) using metamaterial (MTM) as superstrate for C-band applications is proposed in this article. The proposed antenna consists of coaxial-fed RDRA with 50 unit cells of MTM arranged in 5 x 10 layout as superstrate. Each unit cell is constructed of two parallel eight-shaped copper strips printed over both faces of a dielectric substrate to provide negative refractive index from 7.3 to 8.1 GHz covering the maximum bandwidth of RDRA. The extracted lumped equivalent circuit model of unit cell of MTM shows concurrence with electromagnetic simulations. The use of MTM superstrate increases the peak gain of the antenna by 89% through simulation and 86% experimentally. The measured results show that the proposed antenna achieves an impedance bandwidth of 16.1% over a band of 7.18-8.44 GHz, with a peak gain of 14 dBi at 7.8 GHz.
机译：本文提出了一种紧凑的高增益矩形介电共振器天线（RDRA），该天线使用超材料（MTM）作为C波段应用的基板。拟议中的天线由同轴馈送的RDRA组成，其中50个MTM单元单元以5 x 10的布局作为叠层布置。每个单元由两个平行的八字形铜带构成，该铜带印在介电基片的两个面上，以提供7.3至8.1 GHz的负折射率，覆盖RDRA的最大带宽。提取的MTM单位单元集总等效电路模型表明与电磁仿真是一致的。 MTM覆层的使用通过仿真将天线的峰值增益提高了89％，而通过实验将其提高了86％。测量结果表明，所提出的天线在7.18-8.44 GHz频带上实现了16.1％的阻抗带宽，在7.8 GHz处的峰值增益为14 dBi。

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