👉 Learn how to determine the extrema, the intervals of increasing/decreasing, and the concavity of a function from its graph. The extrema of a function are the points where the graph changes from ...
Abstract: A quasi-static periodic Green's function (PGF) is proposed for modeling and designing metasurfaces in the form of two-dimensional (2D) periodic structures. By introducing a novel ...
Abstract: Dual-function periodic slotted patch and its quasi-complementary structure in designing large frequency ratio antennas for vehicular 5G communications are presented in this article. Firstly, ...
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