Back to results
US 8,299,874 B2Granted
Rolled resonant element
AssigneeThe Invention Science Fund I, LLC
InventorsRoderick A. Hyde, John Brian Pendry, David Schurig, David R. Smith, Clarence T. Tegreene, Thomas Allan Weaver
Life of this patent
Estimating the term…
Abstract
A material including a conductor may be rolled to form a resonant element.
Claims44
A method of fabricating an array of elements, comprising:
- determining a first discontinuous conductive pattern corresponding to a first unrolled state, the first discontinuous conductive pattern being selected to produce a first regional effective permeability in a first rolled state, the first rolled state having an axis defining an axial direction;
- applying a first conductor to form the first discontinuous conductive pattern to a first portion of a first non-conductive layer;
- and
- rolling the first portion of the first non-conductive layer such that the first discontinuous conductive pattern forms the array of elements, wherein at least one element in the array of elements has the first regional effective permeability, and wherein the array of elements includes at least two elements that do not overlap along the axial direction.
1 more element
A method of fabricating a metamaterial, comprising:
- determining a first regional effective permeability range;
- determining a first pattern corresponding to a first unrolled state, the unrolled state being characterized by a rolling direction and a second direction substantially orthogonal to the rolling direction, the first pattern being selected to define a plurality of effectively discrete electromagnetic structures corresponding to the first regional effective permeability range in a first rolled state, the first pattern being discontinuous along the second direction;
- applying a first conductor to form the first pattern on a first non-conductive layer;
- and
- rolling the first non-conductive layer in the rolling direction into the first rolled state to form the plurality of effectively discrete electromagnetic structures.
2 more elements
An array of resonant elements achieved by the process of:
- determining a first discontinuous conductive pattern corresponding to a first unrolled state, the first conductive pattern being selected to produce a first regional effective permeability in a first rolled state, the first rolled state having an axis defining an axial direction;
- applying a first conductor to form the first conductive pattern to a first portion of a first non-conductive layer;
- and
- rolling the first portion of the first non-conductive layer such that the first conductive pattern forms an array of elements, wherein at least one element in the array of elements has the first regional effective permeability, and wherein the array of elements includes at least two elements that do not overlap along the axial direction.
1 more element
An apparatus, comprising:
- a first layer of a first material;
- and
- a substantially discontinuous patterned conductor on the first layer, wherein the first layer and the patterned conductor form a rolled structure, the rolled structure having an axis defining an axial direction, and wherein the rolled patterned conductor forms an array of resonant elements including at least two resonant elements that do not overlap in the axial direction, wherein a first resonant element in the array of resonant elements is responsive to electromagnetic energy to resonate at a first resonant frequency, the first resonant element having at least one anomalous electromagnetic property in a first frequency range proximate to the first resonant frequency.
A metamaterial, comprising:
- a first layer of a first material, the first layer being characterized by a rolling direction and a second direction substantially orthogonal to the rolling direction;
- and
- a discontinuous patterned conductor on the first layer, wherein the first layer and the patterned conductor form a first rolled structure, the first rolled structure forming at least three discrete electromagnetic elements that do not overlap along the second direction, and wherein the at least three discrete electromagnetic elements are characterized by a net effective permeability, the net effective permeability being negative in a first frequency range.
A method comprising:
- determining a first regional effective permeability range corresponding to a first range of electromagnetic frequencies;
- and
- determining a first discontinuous conductive pattern corresponding to a first unrolled state, the first discontinuous conductive pattern being selected to produce at least two non-concentric resonant elements in a rolled state, the at least two resonant elements being characterized by the first regional effective permeability range corresponding to the first range of electromagnetic frequencies.
A method comprising:
- determining a first regional effective permeability range corresponding to a first range of electromagnetic frequencies;
- determining, for a coiled substantially planar substrate, a first discontinuous conductive pattern selected to produce at least two non-concentric resonant elements corresponding to the first regional effective permeability range;
- determining an uncoiled conductive pattern corresponding to the determined first discontinuous conductive pattern;
- patterning a substrate with the determined uncoiled conductive pattern corresponding to the determined first discontinuous conductive pattern;
- and
- coiling the patterned substrate to produce the coiled substantially planar substrate.
3 more elements
Dependencies are inferred from the claim text.