Results 71 to 80 of about 16,530 (258)

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, EarlyView.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

Advanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung, Gwang Ya Kim, Sejin Kim, Hyunjong Seo, Se Gi Lee, Sang Min Won, Dongjoon Rhee, Joohoon Kang   +7 more
wiley   +1 more source

Interference rejection in wideband radio uhf channels

Научный вестник МГТУ ГА, 2016
Comparative evaluation of the effectiveness of suppression algorithms focused on the spectrum of noise by modeling the broadband noise immunity of the radio channel transmission of discrete information in the graphical programming environment LabVIEW was
O. N. Skrypnik, O. V. Patrikeev, N. G. Astrakhantseva   +2 more
doaj  

Compact Ultra Wide Band Microstrip Bandpass Filter Based on Multiple-Mode Resonator and Modified Complementary Split Ring Resonator

The Scientific World Journal, 2013
A new class of broadband microstrip filters for Ultra Wide Band (UWB) applications is proposed. In the design, different stages of parallel-coupled microstrip line and other stages with a Modified Complementary Split Ring Resonator (MCSRR)—a concept ...
J. Antonio Marcotegui, Jesús Miguel Illescas, Aritz Estevez, Francisco Falcone   +3 more
doaj   +1 more source

TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens

Advanced Science, EarlyView.
ABSTRACT While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high‐precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual‐focus metalens capable of simultaneous multidimensional sensing.
Man Yuan, Yuqing Zhang, Wangzhe Zhou, Zhaojian Zhang, Xiaoyun He, Xinpeng Jiang, Yiyi Li, Xin He, Jiagui Wu, Yuanmu Yang, Junbo Yang   +10 more
wiley   +1 more source

Compact 5G Broadband Antenna for Sub-6 GHz Wireless Applications

IEEE Access
The design and analysis of a compact broadband antenna supporting the long-term evolution (LTE) bands 41/42/43/46/48/52 and the sub-6 GHz bands N46/N77/N78/N79, Bluetooth, and Wi-Fi are presented.
Manal K. Fattoum, Samira M. Joujou, Sarah M. Ibrahim, Heba El-Halabi   +3 more
doaj   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

BROADBAND JAMMER EXCISION IN SPREAD SPECTRUM COMMUNICATION SYSTEMS USING TIME-FREQUENCY MASKING

Electrica, 2019
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Aydın AKAN, Ertuğrul SAATÇI
doaj   +2 more sources

Emerging near‐infrared luminescent materials for next‐generation broadband optical communications

InfoMat
The rapid development of emerging technologies observed in recent years, such as artificial intelligence, machine learning, mobile internet, big data, cloud computing, and the Internet of Everything, are generating escalating demands for expanding the ...
Beibei Xu, Chaoyuan Jin, Jae‐Seong Park, Huiyun Liu, Xing Lin, Junjie Cui, Daoyuan Chen, Jianrong Qiu   +7 more
doaj   +1 more source