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Measurement data for the complex permittivity of seawater at 1.413 GHz for salinities of 30.002 psu, 34.997 psu and 38.274 psu is used to construct a polynomial model function. The coefficients of the polynomial are determined by minimizing the error between the model function and the data in the least square sense. The results are compared with the Klein Swift model function and the differences are...
In this talk we show some potential applications of a pair of conventional double positive (DPS) and single negative (SNG) metamaterial blocks for specific patch antennas. We propose two designs. One is a 900- and 1800-MHz dual-band rectangular patch antenna filled with a pair of juxtaposed DPS and mu-negative (MNG) metamaterial blocks. With proper constitutive parameters and filling ratio of the...
We design a broad-angle polarization beam splitter consisting of alternating layers of dielectric and ultra-low permittivity material. Within wide range of incident angles, it shows high transmissivity for one polarization while high reflectivity for another.
Improved structure and appropriate surface termination are utilized to enhance dramatically the subwavelength imaging resolution of a multilayered positive-negative permittivity structure with real material loss and operating in the infrared or optical canalization regime.
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