IET Microwaves, Antennas & PropagationIn this paper, we propose a Double Pulse‐based Dual Coprime Frequency Diverse Array Multiple Input Multiple Output (DCFDA‐MIMO) radar for enhanced target parameter estimation, including range, angle, and Doppler.
Umair Hafeez Khan +4 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
Satellite phased arrays for direct-to-handset satellite: key technologies and future vision
Dianxin kexueTo address the long distance and significant loss in satellite-to-ground wireless link, new demands are imposed on satellite phased arrays by direct-to-handset satellite.
JIAO Lingxiao +3 more
doaj +2 more sources
Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes
Advanced Functional Materials, EarlyView.Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu +13 more
wiley +1 more source
Synthesis of Phased Cylindrical Arc Antenna Arrays
International Journal of Antennas and Propagation, 2009 This paper describes a new approach to synthesize cylindrical antenna arrays controlled by the phase excitation, to synthesize directive lobe and multilobe patterns with steered zero.
Hussein Rammal +4 more
doaj +1 more source
Design and Implementation of Multiband Microstrip Patch Antenna for Wireless Applications
Advanced Electromagnetics, 2018 Multiband phased array antennas are required for today’s multi-function communication applications. Generally Microstrip antenna arrays like Kotch array, Sierpinski array are used, but in some circuits where space is limited, arrays are not used ...
L. Prasad +3 more
doaj +1 more source
Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries
Advanced Functional Materials, EarlyView.Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai +6 more
wiley +1 more source
Optical true time-delays for phased-array antennas using 2×2 MEMS switches and fiber delay lin [PDF]
, 2002 Gab‐Yong Lee
openalex +1 more source
Additively manufactured flexible on-package phased array antennas for 5G/mmWave wearable and conformal digital twin and massive MIMO applications [PDF]
, 2023 Kexin Hu +3 more
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Configurable phased antenna array
, 2019 The present subject matter relates to devices, systems, and methods for beam steering in which a configurable antenna assembly includes a first antenna element configured to radiate in a first broadside direction and a second antenna element configured to radiate in an endfire direction.
Zhang, Jin +2 more
openaire +2 more sources