Results 51 to 60 of about 54,143 (209)

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

Analysis of Two Dimensional Graphene-Based Multilayered Structures Using the Extended Method of Lines

IEEE Access, 2018
In this paper, the method of lines is extended to analyze 2-D graphene-based multilayered structures. The graphene plates with tensor conductivity may cover partially or totally the interfaces between two consecutive layers.
Ali Mehrdadian, Hossein Hatefi Ardakani, Keyvan Forooraghi   +2 more
doaj   +1 more source

A Compact Resistively Loaded Metamaterial Absorber for 2.4 GHz RF Energy Harvesting With Impedance‐Matched Rectifier Analysis

Advanced Electronic Materials, EarlyView.
A compact resistively loaded metamaterial absorber captures RF energy at 2.4 GHz and directs most of the accepted power to modeled loads. The resonant response is confirmed experimentally for the fabricated absorber, while an impedance‐matched rectifier is evaluated through simulation. The stage‐wise results distinguish absorber, rectifier, and cascade
Md. Murad Kabir Nipun, Md. Jahedul Islam
wiley   +1 more source

Broadband GaN Class-E Power Amplifier for Load Modulated Delta Sigma and 5G Transmitter Applications

IEEE Access, 2018
The paper presents a design of a broadband high-efficiency class-E power amplifier (PA) for the advanced efficiency enhancement architectures applications.
Tushar Sharma, Pouya Aflaki, Mohamed Helaoui, Fadhel M. Ghannouchi   +3 more
doaj   +1 more source

Biosensors for Food Safety and Adulteration Monitoring: Applications, Smart Packaging Integration, and Pathways to Intelligent, Field‐Deployable Detection Systems

Food Safety and Health, EarlyView.
Biosensors enable rapid, sensitive, and portable detection of pathogens, contaminants, allergens, and food adulteration. Integration with smart packaging, smartphones, IoT, and machine learning supports real‐time monitoring and intelligent decision‐making, whereas microfluidics, biodegradable materials, explainable AI, and blockchain offer pathways ...
Mohima Akther Any, Abid Hassan Arnab, Liza Akter, Yusuf Chowdhury, Md. Hassan Bin Nabi, Md Abu Rayhan, Nazmul Islam, Wahidu Zzaman   +7 more
wiley   +1 more source

From nature to nanoscale: advances, challenges, and preclinical translation of nanofiber drug delivery systems containing plant‐derived active ingredients

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Since the early 1960s, nanotechnology has been a critical area of science, allowing for the development of sophisticated nanomaterials. Nanofibers, one of the most widely used nanotechnological drug delivery systems, have emerged as a highly versatile platform within modern pharmaceutical sciences.
Heybet Kerem Polat, Yasin Turanlı, Nihat Kurt, Sefa Gözcü, Emre Tunçel, Hilal Bacanak, Eren Aytekin, Sedat Ünal   +7 more
wiley   +1 more source

Perancangan Single Fold Hairpin type Narrow-Band Microstrip Band Pass Filter dengan T-Shape Line Stub pada Aplikasi Jaringan Mid-Band 5G Telkomsel

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2022
Teknologi seluler Fifth Generation (5G) merupakan lompatan besar dalam kecepatan untuk perangkat nirkabel karena memberikan kecepatan data sebesar 10 hingga 100 kali lebih cepat dari jaringan 4G. Walaupun begitu terdapat suatu kendala dalam komunikasi 5G
Wahju Adi Prijono, Dimas Brahmantyo
doaj   +1 more source

A Scalable Platform for Massively Parallel Superconducting Single‐Photon Detection

Laser &Photonics Reviews, EarlyView.
One hundred independent superconducting nanowire detectors, each with efficiency up to 80.1–98.3%, are integrated into a single compact system operating below 2.1 K. This parallel architecture supports fully connected multi‐user quantum entanglement distribution, while its scalability opens new avenues in optical quantum computing, QKD networks ...
You Xiao, Zhen Wan, Dianpeng Wang, Jianjian Zhu, Huiqin Yu, Shuna Wang, Zhiyun Shu, Chaomeng Ding, Hongxin Xu, Jia Huang, Jiamin Xiong, Xiaoyu Liu, Lingyun Li, Lixing You, Hao Li   +14 more
wiley   +1 more source

Ultra-low SLL slotted waveguide antenna array using Chebyshev aperture distribution function for MM-wave tracking radar applications

Ain Shams Engineering Journal
A non-uniform aperture distribution slotted waveguide antenna is presented. The slotted waveguide antenna array is chosen for its ease for aperture distribution control and the flexibility of gain adjustment.
Basma M. Yousef, Allam M. Ameen, Ayman Elboushi   +2 more
doaj   +1 more source

Integration Design of Compact Balun Filters and Duplexing Balun Filter With Arbitrary Frequency-Selective Response

IEEE Access, 2023
In this paper, a multifunctional microwave balun filter and balun diplexer design method is introduced. Through the proposed novel coupling structure and the use of miniaturized grid resonators, not only can the overall circuit area be reduced, but also ...
Chi-Feng Chen, Yi-Fang Tsai, Bai-Hong Chen, Ruo-Yin Yang, Yu-Sheng Zeng   +4 more
doaj   +1 more source