Theoretical and experimental investigation of negative index fishnet metamaterial multilayers in the Q-band
نویسندگان
چکیده
We investigate the electromagnetic properties of stacked metamaterial layers composed of modified fishnet structures at around 40 GHz. The designed planar multilayer exhibits theoretically high transmission of -0.5 dB, low reflection, and a large negative index bandwidth with a record figure of merit higher than 36 at 38.5 GHz. Good agreement between simulation and measurement results is observed. We also verify experimentally the resolution of the negative index metamaterial stack and the focusing ability of the plano-concave lens configuration.
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تاریخ انتشار 2014