Back to results
US 10,379,273 B2Granted
Apparatus and methods to provide a surface having a tunable emissivity
AssigneeThe Boeing Company
InventorKeith J. Davis
Life of this patent
Estimating the term…
Abstract
Apparatus and methods to provide a surface having a tunable emissivity are disclosed. An example method includes tuning a characteristic of one or more resonators in a material to change an absorption of radiation by the one or more resonators and to change an amount of destructive interference caused by the material.
Claims18
A method, comprising:
- tuning an impedance of a resistive layer of one or more resonators in a material by applying a voltage to the resistive layer to change an absorption of radiation by the one or more resonators and to change an amount of destructive interference caused by the material, wherein the resistive layer is disposed between first and second dielectric layers, wherein the impedance is tuned by generating an electric field to induce electron migration in the resistive layer to vary a size of a conductive channel proximate the resistive layer, and wherein the one or more resonators are positioned a quarter-wavelength of a resonant frequency of the one or more resonators from an electrically reflective ground plane.
A method, comprising:
- tuning an impedance of a resistive layer of one or more resonators in a material by applying an electric field to the resistive layer to change an absorption of radiation by the one or more resonators and to change an amount of destructive interference caused by the material, wherein the resistive layer is disposed between first and second dielectric layers, wherein the electric field is to induce electron migration in the resistive layer to vary a size of a conductive channel proximate the resistive layer, and wherein the one or more resonators are positioned a quarter-wavelength of a resonant frequency of the one or more resonators from an electrically reflective ground plane.
A method, comprising:
- applying a voltage to a resistive layer of one or more resonators in a material to change an absorption of radiation by the one or more resonators and to change an amount of destructive interference caused by the material, wherein the resistive layer is disposed between first and second dielectric layers, and wherein the one or more resonators are positioned a quarter-wavelength of a resonant frequency of the one or more resonators from an electrically reflective ground plane;
- and
- varying a size of a conductive channel proximate the resistive layer to tune an impedance of the resistive layer.
Dependencies are inferred from the claim text.