Results 91 to 100 of about 3,272 (195)
Charge‐Programmable Photopolymers for 3D Electronics via Additive Manufacturing
Advanced Functional Materials, Volume 34, Issue 18, May 2, 2024.Charge‐programmed 3D printing fabricates 3D electronics with reduced weight and high precision. Photo‐curable resins are designed for exploring the achievable materials property space. Charge and crosslink densities synergistically impact the nano catalyst‐guided selective metal deposition on compatible dielectric materials.
Zhen Wang +8 more
wiley +1 more source
Rotated infrared antenna transmitarray for the manipulation of circularly polarized wavefronts
EPJ Applied Metamaterials, 2014 An IR optical transmitarray is presented based on Antenna Array Sheet (AAS) for the manipulation of circularly polarized light. The unit cell of the transmitarray comprises three layers of metallic elliptical patches.
He Yuchu, Eleftheriades George V.
doaj +1 more source
Evaluation of the phase discretization effect in transmitarrays formed by sub-wavelength patches [PDF]
, 2021 Most of the transmitarray phase shifting cell designs assume a periodic repetition of the same cell to account for the coupling effects of the neighboring cells.
Costa, J. R. +3 more
core
IEEE Transactions on Antennas and PropagationThis communication presents a terahertz (THz) wideband transmitarray antenna with wide-angle beam steering for intersatellite communications. A new design method is developed for beam steering/multibeam transmitarrays based on feed displacement.
Li-zhao Song +4 more
semanticscholar +1 more source
A W-Band Multi-Feed Low-Profile Transmitarray Antenna Using Orthogonal Slot Element
IEEE Open Journal of Antennas and PropagationThis article presents a low-profile transmitarray using multi-feed technology. The element of the transmitarray adopts two orthogonally arranged slots on the bottom and upper layer of the cavity as received and transmitted structure, and is constructed ...
Guang-Hua Sun +3 more
doaj +1 more source
Wideband and High-Efficiency Circularly Polarized Unit-Cell for X and Ka-Band Transmitarrays
IEEE Open Journal of Antennas and PropagationThis paper presents a novel approach for linear to circular polarization (LP-CP) conversion in transmitarray antennas. The proposed conversion mechanism differs significantly from previous published realizations.
Alessandro de Oliveira Cabral Junior +2 more
doaj +1 more source
Circularly-Polarized Discrete Lens Antennas in the 60-GHz Band [PDF]
, 2011 This paper presents the design and demonstration of two circularly-polarized transmit-arrays operating in the 60-GHz band and generating a broadside beam and a 30°-tilted beam respectively.
Dussopt, L. +3 more
core +1 more source
Time-varying Huygens' meta-devices for parametric waves
, 2018 Huygens' metasurfaces have demonstrated almost arbitrary control over the shape of a scattered beam, however, its spatial profile is typically fixed at fabrication time.
Liu, Mingkai +3 more
core +1 more source
Practical considerations for in vivo MRI with higher dimensional spatial encoding [PDF]
, 2018 Object: This work seeks to examine practical aspects of in vivo imaging when spatial encoding is performed with three or more encoding channels for a 2D image.
Cocosco, Chris +6 more
core
Contributions on Transmitarrays for Far-Field Applications [PDF]
XI Encuentro Ibérico de Electromagnetismo Computacional-IIEC, 8-11 de noviembre de 2016, Asturias (España)Different contributions made to the development of Transmitarrays (TA) for Far-Filed applications are presented in this contribution.
Costa, Jorge +5 more
core