volume | PIER Journals

Abstract

Based on dielectric resonators, the design and implementation of planar left-handed metamaterials made of dielectric blocks are investigated in this paper. By etching simple metallic patterns on surface of the dielectric blocks, field distributions of the desired resonance modes can be enhanced while those of the undesired are suppressed. In this way, the resonance frequency of the desired mode can be tuned down to lower frequency range. A wide-angle polarization-independent planar left-handed metamaterial based on disk-like dielectric resonators is proposed and analyzed. Such a left-handed metamaterial is independent of the polarization of incident waves. Moreover, its double-negative property keeps almost the same under a wide range of incident angles. At the end, practical implementation of the lefthanded metamaterial by using flexible supporting slabs is given. Due to its polarization-independence, wide range of incident angle and high flexibility, the proposed left-handed metamaterial is ready to be used in various microwave components, such as antenna radomes, microwave filters and frequency selective surfaces.

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Professor Jiafu Wang

Prof. Shaobo Qu

Dr. Hua Ma

Dr. Yiming Yang

Dr. Xiang Wu

Prof. Zhuo Xu

Dr. Meijuan Hao