MICROWAVE TUNABLE METASURFACES IMPLEMENTED WITH FERROELECTRIC MATERIALS AND PERIODICAL COPPER WIRES | Zendy

Li-Hao Yeh | Zendy; JeanFu Kiang | Zendy

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MICROWAVE TUNABLE METASURFACES IMPLEMENTED WITH FERROELECTRIC MATERIALS AND PERIODICAL COPPER WIRES

Author(s) -

Li-Hao Yeh,

JeanFu Kiang

Publication year - 2014

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.216

H-Index - 31

ISSN - 1937-8726

DOI - 10.2528/pierm14061606

Subject(s) - ferroelectricity , copper , microwave , materials science , optoelectronics , copper wire , optics , dielectric , computer science , telecommunications , physics , metallurgy

A tunable metasurface composed of multiple resonant units is proposed, with each unit containing a block of SrTiO3 ferroelectric and a periodical copper-wire structure. The local transmission coe-cient of the metasurface can be controlled by tuning the permittivity of SrTiO3 via a bias voltage. A tunable metasurface is simulated to steer the beam direction at the angles of 30 - and 14:47 - , respectively. Another one is simulated to focus the wave beam at the focal lengths of 2‚0 and 4‚0, respectively.

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