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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >High-gain magnetic-dipole quasi-Yagi antenna using higher-order-mode dielectric resonator with near-zero-index metamaterial
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High-gain magnetic-dipole quasi-Yagi antenna using higher-order-mode dielectric resonator with near-zero-index metamaterial

机译：高增益磁性偶极拟亚yagi天线，使用高阶模式介电谐振器，具有近零率超材料

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摘要

For the first time, the rectangular dielectric resonator (DR) operating in higher-order TE3δ1 mode is investigated and used as a magnetic-dipole driver to design quasi-Yagi antenna with high gain. For further enhancing the antenna gain, a near-zero-index (NZI) metamaterial (NZIM) is proposed instead of the traditional directors and put in the front of DR driver. It is a simple structure and composed of a set of the parallel metallic lines printed on a substrate along the end-fire direction. Benefiting from the higher-order mode operation of the DR and NZIM, the realized gain of the proposed antenna can reach 10.3 dBi, including the gain improvement of 2 dBi resulting from the employed NZIM. To verify the design concept, the prototype of quasi-Yagi DR antenna with NZIM is fabricated and characterized. The measured results agree very well with the simulated results.
机译：首次，研究以高阶TE3Δ1模式操作的矩形介质谐振器（DR）并用作磁性偶极驱动器，以设计具有高增益的准yagi天线。为了进一步增强天线增强，提出了近零索引（NZI）超材料（NZIM）而不是传统导演并放入DR驱动器的前部。它是一种简单的结构，并且由沿端火方向上印刷在基板上的一组平行金属线组成。从DR和NZIM的高阶模式操作中受益，所提出的天线的实现增益可以达到10.3dBI，包括由所用的南姆引起的2dBi的增益改善。为了验证设计概念，制造和特征是用纽萨米的准yagi DR天线的原型。测量结果与模拟结果非常吻合。

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