“Fractal-Shaped Metamaterials and Applications to Enhanced-Performance Devices Exhibiting High Selectivity”
Hu, H.,H., Wang, G., and Zhang, C.
Publication: International Journal of Antennas and Propagation, Volume 2012 (2012).
The authors here report superior selectivity and bandwidth characteristics using fractal-metamaterial filters, on a variety of fractal shapes. They note examples with a selectivity increase of 77% and bandwidth increase of 47 % for example.
The authors note the fractal filter results are superior to those achieved with split ring resonators or conventional analog filter design.
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