Directive emissions from subwavelength metamaterial-based cavities

By Lei Zhou, Hong-qiang Li, Yaqin Qin, Zeyong Wei, C. T. Chan. IWAT 2005. IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials, 2005., 2005

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We use experiment and theory to demonstrate a new mechanism for directive emissions, which involves a double-plate resonance cavity made with metamaterials. In contrast to other mechanisms employing Fabry-Perot cavities, photonic crystals or zero index materials, our system is significantly thinner than the working wavelength and requires a smaller lateral size. We show the physics to be governed by subwavelength resonance modes unique to such metamaterials-based cavities.

Subfields: Aerospace Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/663c1db3860975ed2c071fcaaaeca7c803bcb296