Negative-Zero-Positive Refractive Index in a Prism-Like Omega-Type Metamaterial

作者:Zhang Fuli*; Potet Sylvain; Carbonell Jorge; Lheurette Eric; Vanbesien Olivier; Zhao Xiaopeng; Lippens Didier
来源:IEEE Transactions on Microwave Theory and Techniques, 2008, 56(11): 2566-2573.
DOI:10.1109/TMTT.2008.2005891

摘要

Negative-zero-positive index refraction was demonstrated numerically on the basis of full-wave analysis of a microstructured omega-type array and experimentally via angle resolved transmission measurement of a prism-type prototype. The experimental results are interpreted in terms of characteristic impedance and refractive index retrieved by a Fresnel inversion technique. The possibility to balance the dispersion characteristics with a negative-zero-positive index is demonstrated over X- and Ku-bands.