Luneburg lenses for microwave antennas and receivers, allows focusing and diffraction to filter desired wavelengths. Molded from high density foam of 60G/L to 152G/L (15 lb/ft3 to 38lb/ft3 density) for refraction of various wavelengths. Blending of additives such as barium titanate and titanium dioxide is possible with special raw material preparations to achieve unique dielectric properties.
Links: Microwaves &RF and Skatelescope
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