An Active Annular Ring Frequency Selective Surface

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Taylor, P.S. ; Parker, Edward A. ; Batchelor, John C. (2011)

Offering good performance in terms of all polarizations affected and good angular stability, the ring element is a popular choice in frequency selective surface (FSS) designs. This paper introduces a topology for two-state switching of a ring based FSS. The two states offered by the surface enable it to be either transparent or reflective at the frequency of interest. A design targeted at the 2.45 GHz WLAN band, and intended for the control of the electromagnetic architecture of buildings (EAoB), is realized both by simulation and measurement, the results of which are presented and evaluated.
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