Results 201 to 210 of about 25,376 (311)

Broadband circularly polarized magneto-electric dipole antenna for millimeter-wave communication. [PDF]

iScience
Wu T, Zhang C.
europepmc   +1 more source

Recent Advances on Thermochromic Inks for Security Applications

Advanced Materials Technologies, EarlyView.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira, Andreia Araújo, Elvira Fortunato, Rodrigo Martins, Marta C. Corvo, Emanuel Carlos   +5 more
wiley   +1 more source

A compact single layer dual-polarized antenna with wideband operation, high isolation, and high front-to-back ratio for 5G applications. [PDF]

Sci Rep
Hussain N, Tran H, Tran-Huy D, Kim-Thi P.   +3 more
europepmc   +1 more source

A Review on Microreactor Design for Effective Fischer–Tropsch Process Intensification

Advanced Materials Technologies, EarlyView.
Design strategies for effective Fischer–Tropsch process intensification are summarized based on experimental and simulation experiences. Recommendations for catalyst loading of packed‐bed and wash‐coated microchannel, microtube, micromonolith, and microstructured reactors are discussed.
Yangjun Wei, Lukas Thum, Avela Kunene, Daniel Amkreutz, Rutger Schlatmann, Sonya Calnan   +5 more
wiley   +1 more source

An ultrawideband monopulse feed with slant polarization for tracking radar systems. [PDF]

Sci Rep
Zarifi D, Farahbakhsh A, Mrozowski M.
europepmc   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

Advanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim, Donggeun An, Hyunjae Shin, Youngno Youn, Wonbin Hong   +4 more
wiley   +1 more source

Sub-THz communication systems: pushing the capabilities of silicon. [PDF]

Commun Eng
Gruber J, Alotaibi H, Tabatabavakili A, Chen L, Aghasi H, Naghavi SMH, Afshari E.   +6 more
europepmc   +1 more source

Design and Fabrication of High Dielectric GRIN Lens for a Directive Antenna Using a Hybrid Filled Voxel Additive Manufacturing Technique

Advanced Materials Technologies, EarlyView.
Hybrid‐filled voxel AM enables integration of high‐permittivity materials into additively manufactured devices. Using this approach, a graded refractive index (GRIN) lens is demonstrated, achieving a 50% antenna size reduction with enhanced directivity.
Qianfang Zheng, Anna Radkovskaya, Kailun Xu, Ekaterina Shamonina, Patrick S. Grant   +4 more
wiley   +1 more source

Dual-Polarized Metasurface-Integrated Antenna for Integrated Imaging of LWIR Camera and SAR. [PDF]

Micromachines (Basel)
Hu J, Dong Z, Xia L, Chen X.
europepmc   +1 more source

Fabrication Technologies for Soft, Multimaterial Optical Fibers for In Vivo Diagnostics and Phototherapy, With a Focus on Extrusion Printing

Advanced Materials Technologies, EarlyView.
Soft multimaterial optical fibers integrate multiple functionalities—such as waveguiding, side emission, sensing, drug delivery or actuation—into a single filament for wearable, implantable, and tissue‐integrated devices for diagnostics and phototherapy.
Zahra Kafrashian, Jun Feng, Aránzazu del Campo   +2 more
wiley   +1 more source