TUNABLE ELECTROMAGNETIC DEVICE WITH MULTIPLE METAMATERIAL LAYERS, AND METHOD
First Claim
1. A tunable electromagnetic device comprising:
- a first tunable metamaterial layer; and
a second tunable metamaterial layer;
wherein the metamaterial layers at least partially physically overlap.
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Accused Products
Abstract
A tunable electromagnetic device includes at least two overlapping metamaterial layers, wherein the metamaterial layers are selectively tunable by patterned conductive structures that are parts of the metamaterial layers. By selectively altering the properties of the metamaterial layers with the patterned conductive structures, the frequency response of the electromagnetic device can be controlled, to selectively let electromagnetic energy of certain frequencies pass through, or alternatively to prevent pass-through of substantially all frequencies of electromagnetic energy. In addition the frequencies for which electromagnetic energy passes through may be altered by controlling one or more of the tunable metamaterial layers. The tunable electromagnetic device may be used to selectively shield radar or other types of sensors, for example being used as all or part of the skin of a vehicle or other object.
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Citations
20 Claims
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1. A tunable electromagnetic device comprising:
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a first tunable metamaterial layer; and a second tunable metamaterial layer; wherein the metamaterial layers at least partially physically overlap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of shielding a device that receives and/or sends electromagnetic energy, the method comprising:
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selectively altering transmission properties of a tunable electromagnetic device that at least partially covers the device that receives and/or sends electromagnetic energy; wherein the tunable electromagnetic device includes; a first tunable metamaterial layer; and a second tunable metamaterial layer; wherein the metamaterial layers at least partially physically overlap; and wherein the altering transmission properties including selectively altering transmission properties of at least one of the metamaterial layers. - View Dependent Claims (18, 19, 20)
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Specification