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- W2801820143 abstract "This paper describes a wideband and low-profile end-fire surface wave antenna embedded into a large metallic platform. It consists of a tapered grounded slab fed by a wideband surface wave launcher and coated with a planar gradient metasurface (MS). It is found that by altering the surface reactance of the MS array, the surface wave propagating in the grounded slab can be manipulated to suppress the radiation of TM <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>1</sub> mode region at a specific high frequency. A simple design procedure of MS array is then developed. In addition, a blind-filled cylinder hole is used to further improve the radiation pattern at certain high frequencies. A prototype of the proposed antenna is finally fabricated and tested. Measured results are in good agreement with simulated ones, and they show that the surface wave antenna has a very wide bandwidth from 3.78 to 18.54 GHz for voltage standing wave ratio < 2.5 and exhibits a low profile of only 5 mm ( <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$0.063~lambda _{L}$ </tex-math></inline-formula> , <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$lambda _{L}$ </tex-math></inline-formula> is the free-space wavelength at the lowest operating frequency). Good radiation pattern and high gain are achieved over a wide frequency band." @default.
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- W2801820143 date "2018-01-01" @default.
- W2801820143 modified "2023-10-14" @default.
- W2801820143 title "End-Fire Surface Wave Antenna With Metasurface Coating" @default.
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- W2801820143 doi "https://doi.org/10.1109/access.2018.2827199" @default.
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