Planar band gap materials
First Claim
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1. A planar bandgap material comprising a non-conducting planar substrate with a conductive fractal pattern formed thereon which is tuned to define at least one predetermined transmission bandgap for the material.
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Abstract
The present invention relates to planar materials having bandgap properties. The materials are formed by depositing conductive fractal patterns on a non-conducting substrate. The bandgap location(s) are defined by parameters including the number of fractal levels, and the dimension of the fractal mother element. The bandgaps can also be actively controlled by injecting current into the conducting pattern.
17 Citations
13 Claims
- 1. A planar bandgap material comprising a non-conducting planar substrate with a conductive fractal pattern formed thereon which is tuned to define at least one predetermined transmission bandgap for the material.
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8. A planar bandgap material comprising a non-conducting planar substrate with a conductive fractal pattern formed thereon which determines at least one bandgap at a wavelength that is larger than all the dimensions of said substrate.
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9. An electromagnetic radiation shield comprising a substrate having formed thereon a conductive fractal pattern that is tuned to define at least one predetermined reflection band for said shield.
- 10. A method of forming a bandgap material comprising the step of forming a conductive fractal pattern on a planar substrate with a mother element whose dimensions and number of levels are selected to define at least one predetermined bandgap for said material.
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13. A narrow-band electromagnetic filter comprising a wire mesh material adjacent to a plate having a conducting fractal pattern formed thereon which defines a transmission bandgap for said plate.
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