Results 41 to 50 of about 21,968 (229)

Printable Liquid Metal‐Textiles for Deformation‐Insensitive and Electromagnetically Robust mmWave Devices

Advanced Science, EarlyView.
We present a textile‐compatible, self‐healing liquid metal ink and a dual‐mask printing technique for high‐resolution patterning. Using this approach, we demonstrate high‐performance millimeter‐wave (mmWave) electronic textiles that exhibit exceptional insensitivity to deformation.
Lu Ju, Buyun Yu, Rui Wang, Hao Chen, Kexin Hou, Chao Zhang, Mingyang Geng, Yunqian Dai, Yingying Zhang, Ying‐Shi Guan, Cunjiang Yu, Wei‐Bing Lu   +11 more
wiley   +1 more source

High-Order Dual-Port Quasi-Absorptive Microstrip Coupled-Line Bandpass Filters [PDF]

, 2020
In this article, we present the first demonstration of distributed and symmetrical all-band quasi-absorptive filters that can be designed to arbitrarily high orders.
Li, Y, Liu, X, Wu, X
core  

Hierarchical Reconfigurable Metasurface Based on Scenario‐Guided Functional Modules and Programmable Core

Advanced Science, EarlyView.
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu, Jiaqi Han, Zhe Zheng, Qiang Feng, Dexiao Xia, Xiangjin Ma, Yajie Mu, Guoliang Luo, Rui Li, Haixia Liu, Hao Xue, Long Li   +11 more
wiley   +1 more source

Circularly-polarized 28-GHz antenna for next generations of communication systems

Scientific Reports
A circularly-polarized (CP) printed antenna is proposed for millimeter-wave mobile communications. The antenna has a defected ground structure (DGS), and it operates at 28 GHz.
Rania R. Elsharkawy, Khalid. F. A. Hussein, Asmaa E. Farahat   +2 more
doaj   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Design of Millimeter-wave Detector for Gyrotron Power Monitoring

, 2019
The real-time power monitoring of gyrotron is one of the key issues in the operation of electron cyclotron resonance heating system. The detector can be used for real-time power monitoring.
Liu, Fukun, Wang, Xiaojie, Xu, Handong, Xu, Weiye   +3 more
core   +1 more source

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

Design of novel multiband bandpass filters based on coupled symmetric short‐circuit stub multimode resonators

Electronics Letters
In this letter, the working mechanism of suggested bandpass filters with connected symmetric short‐circuit stub multimode resonators is described. Because of the design flexibility, the suggested bandpass filters' centre frequencies may be modified based
Jie Luo, Zaiyue Liu, Shanshan Gao
doaj   +1 more source

New opportunities for bioscaffold‐enabled spinal cord injury repair

BMEMat, EarlyView.
Schematic illustration of bioscaffolds for spinal cord injury repair. We summarize the effects of bioscaffold properties on SCI repair, highlight different types of bioscaffolds, various fabrication strategies, and in vivo transformations for the clinical development of SCI‐repairing bioscaffolds.
Xiaoqing Qi, Yicheng Fu, Zhaoliang Su, Li Li, Subrata Chakrabarti, Peng Li, Yilun Wu, Fang Liu, Teng Gao, Zhifeng Dong, Lei Liu, Pei Cao   +11 more
wiley   +1 more source

A New Compact Quad-Band Metamaterial Absorber Using Interlaced I/Square Resonators: Design, Fabrication, and Characterization

IEEE Access, 2020
This paper presents the design and analysis of a new compact quad-band metamaterial absorber (MMA). The proposed structure is constructed as an array of 12 × 13 unit cells, each one is based on a combination of interlaced I/square resonators ...
Mohamed Edries, Hesham A. Mohamed, Sherif S. Hekal, Mohamed A. El-Morsy, Hala A. Mansour   +4 more
doaj   +1 more source