Metamaterials With Gain Compensation by Active DevicesTechnology #ua16-104
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Title: Metamaterials with Gain Compensations by Active Devices
Invention: This invention is an effective gain medium that overcompensates for the loss of a conventional passive metamaterial, meanwhile keeping its original negative-index property. This material can be used to solve the critical challenge current metamaterial technology faces in practical applications.
Background: Using energy conservation-based theory, full-wave simulation and experimental measurement, the inventors have shown that a fabricated sample consisting of conventional sub-wavelength building blocks with embedded microwave tunnel diodes exhibits a band-limited Lorentzian dispersion simultaneously with a negative refractive index and a net gain.
- Super lensing
- Electromagnetic invisibility
- RF communications
- Military technology
- Sonar aversion
- Radar aversion
- Potential for use in deep sea water
- Overcompensates for passive losses of radiation due to dispersion
- Easily manufactured
- Requires materials that are readily available
- Exhibits versatility across numerous applications