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In this paper, a novel left-handed transmission line (LH TL) is proposed using defected ground structure (DGS) with inter-digital gap (IDG). The conventional DGS has low series capacitance value by connecting slot between the defected areas. However, because the IDG is used, the proposed structure has the lower resonance frequency and higher series capacitance value than those of the conventional...
It is confirmed that zeroth-order resonance appears in the epsilon negative (ENG) meta-structured transmission line (MTL) as well as in the conventional double negative (DNG) MTL. The zeroth-order resonant characteristics are described using dispersion relation of ENG MTL based on Bloch and Floquet theory. Appling the novel concept of the ENG zeroth-order resonator (ZOR), an ENG ZOR antenna is proposed...
In this paper, a novel planar composite right- and left-handed transmission line (CRLH-TL) of grounded rectangular patch with meander line and its equivalent circuit are proposed. The dispersion relations are analytically derived using the equivalent circuit and Bloch-Floquet theory. The measured results have good agreements with those of simulation and theory. The fractional bandwidth for left-handed...
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