Results 111 to 120 of about 42,935 (288)

Metamaterial Inspired Microstrip Antenna Investigations Using Metascreens

International Journal of Antennas and Propagation, 2015
A dual layer periodically patterned metamaterial inspired antenna on a low cost FR4 substrate is designed, simulated, fabricated, and tested. The eigenmode dispersion simulations are performed indicating the left handed metamaterial characteristics and ...
Muhammad Tauseef Asim, Mushtaq Ahmed
doaj   +1 more source

Bioinspired Soft‐Skeleton Robotics With Cooperative Shape Transformation and Stiffness Adaptation

Advanced Robotics Research, EarlyView.
A bioinspired soft‐skeleton robot that integrates variable‐stiffness chain skeletons into a soft textile skin is developed. The chain skeletons are highly flexible initially but can stiffen upon pneumatic actuation, enabling large deformation and enhanced load‐bearing capacity.
Mengyuan Niu, Xiaorui Hu, Chenmin Yuan, Haoyun Li, Xuzhong Su, Fengxin Sun   +5 more
wiley   +1 more source

Toward Mechanical Intelligence in Robotics

Advanced Robotics Research, EarlyView.
Robots can use their physical bodies to perform functions usually assigned to electronic sensors and controllers. This perspective defines mechanical intelligence through three core operations: filtering inputs, routing mechanical signals, and switching between states.
Xinyi Yang, Xinyi Ding, Tianyu Wang, Daniel I. Goldman, Shucong Li, Bolei Deng   +5 more
wiley   +1 more source

Research progress and development trends in radar stealth microwave absorbing materials

Cailiao gongcheng
Microwave absorbing materials（MAM），as a crucial component of radar stealth technology，reduce the radar cross-section of detected targets by absorbing radar waves，thereby lowering the probability of detection.
LI Jiaomin, LIU Xiaohan, LI Fushan, HOU Rui, PAN Shibing, ZHANG Zidong   +5 more
doaj   +1 more source

Controlling the effective bending stiffness via out-of-plane rotational resonances in elastic metamaterial thin plates

New Journal of Physics, 2018
In this work, we investigate the effective parameters of elastic metamaterial thin plates. We find that the out-of-plane rotational resonances can lead to a resonant behavior in the effective bending stiffness of metamaterial thin plates, which provides ...
Jinjie Shi, Chenkai Liu, Yun Lai
doaj   +1 more source

A d.c. magnetic metamaterial

Nature Materials, 2008
Electromagnetic metamaterials are a class of materials which have been artificially structured on a subwavelength scale. They are currently the focus of a great deal of interest because they allow access to previously unrealisable properties like a negative refractive index.
Magnus, F, Wood, B, Moore, J, Morrison, K, Perkins, G, Fyson, J, Wiltshire, MCK, Caplin, D, Cohen, LF, Pendry, JB   +9 more
openaire   +5 more sources

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Radiative cooling and indoor light management enabled by a transparent and self-cleaning polymer-based metamaterial

Nature Communications
Transparent roofs and walls offer a compelling solution for harnessing natural light. However, traditional glass roofs and walls face challenges such as glare, privacy concerns, and overheating issues.
Gan Huang, Ashok R. Yengannagari, Kishin Matsumori, Prit Patel, Anurag Datla, Karina Trindade, Enkhlen Amarsanaa, Tonghan Zhao, Uwe Köhler, Dmitry Busko, Bryce S. Richards   +10 more
doaj   +1 more source

Structural optimized mechanical metamaterial for multi transient high-g impact suppression and self-monitoring

Materials & Design
For extreme high-g mechanical impact of vehicle personnel and penetrating munition fuze, specific protections in terms of simultaneous high energy absorption performance, high recoverability and real-time alarming are urgent demands.
Kejia Zhang, Benqiang Yang, Zhisen Zhu, Juteng Fu, Xiangyu Han, Wenling Zhang, Keren Dai   +6 more
doaj   +1 more source

Synthesis and analysis of metamaterial structure for microwave frequency applications [PDF]

, 2017
This thesis involves analysis of artificial materials to investigate metamaterial behavior and characteristics. Extraction techniques are used to validate the electromagnetic properties and different microwave applications are investigated.
Uddin, Md. Jasim
core   +1 more source