Global ETD Search
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Showing 1 to 4 of 4 for “"microwave lens"”.
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Design, fabrication, testing, and application of a sub-wavelength microwave lens
… of a photonic band gap (PBG) graded-index lens. PBGs can be used to achieve sub-wavelength focusing, which is not possible with lenses made from conventional dielectric materials. Subwavelength focusing is attractive for a variety of applications, including medicine, optics, and mining. By …
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Microwave Lens Designs: Optimization, Fast Simulation Algorithms, and 360-Degree Scanning Techniques
Microwave lenses support low-phase error, wideband, wide-angle scanning, and true-time delay (TTD) beam forming. They provide ideal performance for applications such as satellites, remote-piloted vehicles, collision-avoidance radars and ultra-wideband communications systems. The emerging printed …
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Waves in Anisotropic and Birefringent Artificial Dielectrics
… of this study are first, to determine why the lenses previously built with this material failed to perform properly, and second, to design a functional lens if possible. The wave propagation properties of this type of medium are found using a full wave analysis. An equivalent multiport network …
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Advances in non-planar electromagnetic prototyping
… devices, including gradient index lenses at both microwave and optical frequencies, and radio frequency lenses that attain resolution beyond the diffraction limit. Though primarily used for facsimile display models, additive manufacturing is uniquely capable of addressing the needs …