期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 17, 期 4, 页码 571-574出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2018.2803214
关键词
Metasurfaces; microwaves; resonances; water
All-dielectric metasurfaces have recently attracted great attention in the artificial material design and related applications. Among a variety of materials, water was recently proposed for strongly resonant inclusions in such configurations due to its relatively high permittivity. We presently design and characterize polarization-sensitive metasurfaces with simple and easily fabricated rod-like water inclusions in a low-permittivity host, which may be tuned mechanically by rotation. Excellent agreement is reported between simulations and the experimental results, obtained in an L-band waveguide environment. Moreover, we show effective guiding and switching effects of the fields radiated by a dipole antenna located next to a stack of metasurfaces. The proposed metasurfaces may be very convenient for a variety of microwave applications owing to the low cost, abundance, and bio-friendly nature of water.
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