A 3D printed nearly isotropic Luneburg lens antenna for millimeter-wave vehicular networks

Y Guo, Y Li, J Wang, L Ge, Z Zhang… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
A three-dimensional (3D) printed Luneburg lens with nearly isotropic properties is
presented. The cubical-lattice-type and the rod-type gradient-index materials are employed …

Silicon nitride waveguide devices based on gradient-index lenses implemented by subwavelength silicon grating metamaterials

SH Badri, MM Gilarlue - Applied Optics, 2020 - opg.optica.org
The rapid development of photonic integrated circuits demands the design of efficient and
compact waveguide devices such as waveguide tapers and crossings. Some components in …

Dielectric slot-coupled half-Maxwell fisheye lens as octave-bandwidth beam expander for terahertz-range applications

D Headland, AK Klein, M Fujita, T Nagatsuma - APL Photonics, 2021 - pubs.aip.org
We present a paradigm for integrated photonic devices based on broadband slab-confined
collimated beams that are launched with half-Maxwell fisheye lenses. Although it is …

Coupling between silicon waveguide and metal-dielectric-metal plasmonic waveguide with lens-funnel structure

SH Badri, MM Gilarlue - Plasmonics, 2020 - Springer
Various photonic integrated components have been implemented by ultra-thin silicon-on-
insulator (SOI) waveguides; therefore, it is desirable to couple ultra-thin SOI waveguides to …

Multilayered Maxwell's fisheye lens as waveguide crossing

MM Gilarlue, J Nourinia, C Ghobadi, SH Badri… - Optics …, 2019 - Elsevier
The Maxwell's fisheye (MFE) lens, due to its focusing properties, is an interesting candidate
for implementing the crossing of multiple waveguides. The MFE lens is implemented by two …

A novel metamaterial-based planar integrated Luneburg lens antenna with wide bandwidth and high gain

B Hu, T Wu, Y Cai, W Zhang, BL Zhang - IEEE access, 2019 - ieeexplore.ieee.org
A novel metamaterial-based and broadband planar integrated Luneburg lens antenna is
designed, fabricated, and measured. A substrate integrated waveguide (SIW) horn antenna …

Planar Luneburg lens based on the high impedance surface for effective Ku-band wave focusing

G Cheng, Y Wu, JX Yin, N Zhao, T Qiang, X Lv - IEEE Access, 2018 - ieeexplore.ieee.org
In this paper, a planar Ku-band Luneburg lens is designed, fabricated, and measured.
Based on the high impedance surface, metamaterial units are designed and arranged in an …

3× 3 slot waveguide crossing based on Maxwell's fisheye lens

SH Badri, M Mohammadzadeh Gilarlue… - Optical …, 2019 - spiedigitallibrary.org
Intersection of two or more silicon slot waveguides is inevitable in modern optical integrated
circuits based on a silicon-on-insulator platform. We design a Maxwell's fisheye lens as the …

Optimal radiation pattern of feed of Luneburg lens for high-gain application

G Guo, Y **a, C Wang, M Nasir… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The focus of this communication is to study about the optimal radiation pattern of the feed of
Luneburg lens for high-gain application. Based on geometric optics and equivalent aperture …

Multibeam Hybrid Transmitarray Based on Polarization Rotating Metasurface With Reconfigurable Bidirectional Radiation

F Qin, Y Liu, C Gu, L Zeng, W Cheng… - … on Antennas and …, 2024 - ieeexplore.ieee.org
This article proposes a bidirectional multibeam hybrid transmitarray (HTA) using a
transmission polarization-rotating metasurface (TPRM). A novel configuration is introduced …