Existence of Stop-Bands in Grounded Left-Handed Slab Waveguides

In this paper, TE guided modes of a grounded left-handed (LH) slab waveguide are theoretically investigated. It will be demonstrated that LH slab waveguides, unlike right-handed (RH) waveguides, possess stop-bands in two frequency ranges. It is also discussed that LH slab waveguides can support propagation of slow waves and show stop-bands for these waves at higher frequencies. Existence of the stop-bands is an indication of LH properties, so that it can be exploited to identify LH dielectrics form RH ones.

کلیدواژه ها:

Left-handed metamaterials ، stop-band ، modal analysis ، surface waveguides