Electromagnetic wave beam regulating and controlling device
A control device and beam technology, applied in electrical components, antennas and other directions, can solve problems such as effective transmittance and reflectivity less than 3%, metal resonant units are difficult to achieve at the same time, limited phase control capability, etc., to achieve high-efficiency beams The effect of regulation, ultra-thin thickness and simple preparation
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[0022] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings.
[0023] A beam control device of the present invention includes a metal layer and a dielectric layer.
[0024] The thickness of the metal layer is less than one-third of the working wavelength, the thickness of the medium layer is less than one-half of the working wavelength, and the number of layers of the metal layer is 2 to 8, according to the number of layers of the metal layer The number of dielectric layers alternately arranged with the metal layer is 1 to 9 layers, and the total thickness of the metal layer and the dielectric layer alternately stacked does not exceed two wavelengths.
[0025] The metal layer has a supercell, and the supercell includes a plurality of metal resonant units, each metal resonant unit has a size smaller than one working wavelength in the plane, and the size, shape, quantity and geometric parameters of the met...
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