Results 91 to 100 of about 57,628 (317)
Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source
, 2010 A novel design solution of a dual-linearly polarised Ku-band low-profile radiating element for low elevation angle coverage (down to 10° above horizon) is presented. Such an element is suitable for full-duplex Satellite Communications On-The-Move (SCOTM)
Yuanyuan Jiang +7 more
core +1 more source
Towards a hardware implementation of ultra-wideband beamforming [PDF]
, 2010 This paper discusses and analyses the hardware implementation of an ultra-wideband (UWB) beamformer for UWB Impulse Radio data transmission. We use a Complex Programmable Logic Device (CPLD) acting as the binary baseband information source.
Wolfgang Gartner +9 more
core +1 more source
A Miniaturized Base Station Antenna With Novel Phase Shifter for 3G/LTE Applications
IEEE Access, 2018 This paper presents a new type of miniaturized base station antenna array, which consists of a metal reflector, six upper-band dipoles, and a couple of ladder sidewalls, operating over 1.71-2.69 GHz (DCS/PCS/UMTS/LTE). Meanwhile, this paper also proposes
Yejun He +5 more
doaj +1 more source
Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films
Advanced Functional Materials, EarlyView.Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A compostable PGS soft surgical robot with interchangeable modules integrates transient Mo tactile and Si thermal sensors for dual feedback. The device preserves its function after clinical‐grade sterilization, demonstrates stable actuation and cardiac tissue grasping with real‐time in vivo pulsatile monitoring, and biodegrades post‐use with soil‐safe,
Minseong Chae +27 more
wiley +1 more source
60 GHz compact broadband antenna arrays with wide-angle beam steering
The Journal of Engineering, 2019 Highly integrated multilayered printed circuit board-based patch antenna arrays are proposed in this study for 60 GHz wireless communications. Electromagnetic coupling between two stacked patches is used to achieve
Imran Aziz +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam +8 more
wiley +1 more source
Design and Test of Beamforming Networks for a Galileo Antenna Array
, 2006 The aim of the work is the design of a series of passive feeding networks that will steer the main beam of a Galileo antenna into different fixed directions to evaluate the performance of the array under such ...
Arango Selga, Arturo
core
Modular tightly coupled antenna array
, 2020 Prather, Dennis W.As demand for high speed, uninterrupted wireless data access increases, re-search has increased in millimeter wave (mmw) and radio frequency (RF) photonic devices and systems as solutions. Higher frequencies increase data throughput due
Stacy, Brandon J.
core +1 more source