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This paper presents a study on the PIN-diode modelling of an active-metasurfaced patch antenna at 2.45 GHz. The metasurface composed of closed-rings that coupled to a probe-fed patch antenna. Both the ideal and actual equivalent circuits with parasitic elements and two gap-lengths of closed rings are considered. Results indicate that the gap-lengths and parasitic elements affect the directivity and...
We propose a low‐cost solution for performance enhancement and polarization rotation of a waveguide antenna by using an anisotropic metasurface. The antenna is being considered as reconfigurable, where its polarizations can be controlled by changing the alignment angle of striplines on the metasurface in order to fulfil the polarization diversity. Both simulation and experimental results verify that...
This paper briefs the recent research activities in microwave antenna applications that make use of metasurfaces. The interesting design initiatives including the grating lobes and sidelobes suppression of circularly-polarized patch subarray, and beam-steering control using active metasurface are presented.
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