Resonantly inverted microwave transmissivity threshold of metal grids
Edmunds, James D.; Hibbins, Alastair P.; Sambles, J. Roy; et al.Youngs, I.J.
Date: 2010
Journal
New Journal of Physics
Publisher
IOP Publishing for Deutsche Physikalische Gesellschaft
Publisher DOI
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Abstract
The microwave transmission of arrays of square patches, each rotated by 45 from the axes of the square lattice on which they are positioned, has been experimentally studied as a function of metal occupancy. At low frequencies, the microwave transmissivity drops on passing through the connectivity threshold (50 per cent occupancy), as ...
The microwave transmission of arrays of square patches, each rotated by 45 from the axes of the square lattice on which they are positioned, has been experimentally studied as a function of metal occupancy. At low frequencies, the microwave transmissivity drops on passing through the connectivity threshold (50 per cent occupancy), as one would expect. However, quite counter-intuitively, near the onset of diffraction, resonant phenomena induce a complete reversal in the sense of this transmissivity switch, i.e. the transmission is seen to increase as the metal occupancy is increased.
Physics and Astronomy
Faculty of Environment, Science and Economy
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