With the advent of 5G and future trends for communication systems moving to millimeter
wave (MMW) and higher frequencies, antennas will be required to have high gain, wide …

Gradient index lens antennas find their application in modern wireless communication
including radar systems, satellite communication, etc. They can ensure highly directional …

This paper presents a quasi-conformal transformation optics (QCTO) based three-
dimensional (3D) retroreflective flattened Luneburg lens for wide-angle millimeter-wave …

With 5G and millimeter-wave technologies evolving rapidly, the high communication
frequency leads to high integration and miniaturization of the Luneburg lens (LL). In this …

In this paper we present the design, fabrication, and experimental verification of a new type
of Graded-index (GRIN) lens antenna with an integrated feeder. The continuously varying …

In this paper, we investigate a shortened horn antenna with high gain that is enabled by a
3D-printed gradient index (GRIN) lens composed of high permittivity zirconia. The baseline …

Additive manufacturing of ceramics stands to transform applications requiring wear
resistance in severe environments (including high temperatures and pressures, harsh …

Additive manufacturing of ceramics is transforming electromagnetics by providing density-
varying lattices and stochastic foams within arbitrary envelopes. Periodic structures can now …

This paper presents an effective complex permittivity measurement of 3D printed artificial
dielectric substrate. Two resonator methods are employed at the frequencies of 7.16 GHz …

In this paper, we present a lightweight 3D printed gradient refractive index (GRIN) lens that
enhances a dual-ridge horn antenna gain in the 1 to 7 GHz frequency spectrum. The lens …