Publication Date:
2016-02-06
Description:
Enhanced transmission, and specifically tunable enhanced transmission, of microwaves through a subwavelength metal aperture is of major significance for a variety of microwave applications. In this study, by placing a metamaterial resonator into a subwavelength aperture, we experimentally and numerically demonstrated a transmission enhancement of 20 dB at the first Mie resonant frequency of this metamaterial resonator. Importantly, this enhanced transmission is also thermally tunable because of the high temperature coefficient of resonant frequency of the dielectric-based metamaterial resonator. Over a temperature range from 20 °C to 90 °C, the enhanced transmission peak was adjusted from 11.6 GHz to 12.1 GHz. Therefore, thermally tunable enhanced transmission of microwaves through a subwavelength metal aperture was realized.
Print ISSN:
0003-6951
Electronic ISSN:
1077-3118
Topics:
Physics
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