This work presents a parallel-plate waveguide (PPWG) fanbeam antenna achieving a field
of view with an average maximum scan loss of over the Ka-band for a flat feed surface. This …

High aperture efficiency 2-D multibeam flat gradient index (GRIN) lenses are developed in
this work. New methods based on bifocal analysis are found to determine the refractive …

A method for improving beamscan performance of flat lens antenna systems is proposed,
wherein small gradient index (GRIN) lenses are included in the feed apertures to correct …

We propose a phased-array-fed lens (PAFL) antenna that is capable of beamforming like a
phased array but with array elements spaced beyond. The PAFL produces high-quality …

Artificial dielectrics are widely used for Gradient-Index (GRIN) lens antennas. The unit-cell
size of an artificial dielectric determines the maximum operating frequency and also drives …

A Ka-band fanbeam GRIN lens antenna using two GRIN lenses for enhanced beamscan is
proposed and validated in full-wave simulation. Over the band of interest, the two-lens …

This work presents a low-energy, low-cost beam-steering 1 Gbps receiver operating in the
millimeter-wave (MMW) band and consuming 1.15 milliwatts (mW). The receiver comprises …

This work combines multiple 3D-printed materials to extend the range of realizable dielectric
constants (D_k) for compact, additively manufactured GRIN lenses. A low-loss, high …

This work details the analysis and design of compact square-law envelope detectors
employing Schottky diodes for use as low-power energy efficient Gbps on-off-keying …

Abstract Millimeter wave (MMW) GRadient INdex (GRIN) lens antennas leverage spatially
varying refractive structures to generate high directivity beams. GRIN lenses also …