Switchable Frequency Selective Surface for Reconfigurable Electromagnetic Architecture of Buildings .pdf (1.82 MB)
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journal contribution
posted on 2011-02-18, 14:42 authored by Ghaffer I. Kiani, Kenneth L. Ford, Lars G. Olsson, Karu P. Esselle, C.J. PanagamuwaA frequency selective surface (FSS) that is electronically
switchable between reflective and transparent states is tested. It can be
used to provide a spatial filter solution to reconfigure the electromagnetic
architecture of buildings. The FSS measurements show that the frequency
response of the filter does not change significantly when the wave polarization
changes or the angle of incidence changes up to +/- 45 degrees from normal. The FSS is based on square loop aperture geometry, with each
unit cell having four PIN diodes across the aperture at 90 degree intervals.
Experiments demonstrated that almost 10 dB additional transmission
loss can be introduced on average at the resonance frequency, for both
polarizations, by switching PIN diodes to ON from OFF state.
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