Results 61 to 70 of about 8,209,485 (298)

Intelligent reflecting surface-enabled electromagnetic stealth for 6G: recent advances and future prospects

Dianxin kexue
The rapid development of wireless technology has driven a high level of informatization in modern warfare, opening a new era in electronic countermeasures (ECM).
MA Tiantian, ZHENG Beixiong, XIONG Xue, ZHANG Rui   +3 more
doaj   +2 more sources

Graphene Aerogels With Spherical Pore Structure for Broad Frequency Regulation and Enhanced Low‐Frequency Response

Advanced Science, EarlyView.
A graphene aerogel with a spherical‐pore structure is constructed via microbubble templating. This unique architecture suppresses strain‐induced percolation of conductive networks, enabling dynamic frequency tuning. It also delivers enhanced low‐frequency absorption with an effective absorption bandwidth of 2.56 GHz, covering 91% of the low‐frequency ...
Liang Li, Jiale Yan, Gengping Wan, Changlong Du, Yubing Lv, Yongzhu Yan, Zhaoyang Li, Guizhen Wang   +7 more
wiley   +1 more source

Application research in metamaterials for military stealth

Cailiao gongcheng
With the development of detection methods, the intelligent and high-precision military stealth detection technology has put forward higher requirements for the performance of stealth materials, the traditional materials are limited by their own ...
ZHOU Pengfei, ZHU Hongli, LI Mingjun, ZHANG Chengjun, WANG Xingyi, PAN Shibing   +5 more
doaj   +1 more source

Stealth-Technik für Unterwasserfahrzeuge

, 2021
In dieser Arbeit werden erstmals die hydroakustischen Grundlagen einer Stealth-Außenhautgeometrie für den Sonareinsatz untersucht. Daraus leiten sich Anforderungen an so eine Sonar-Stealth-Form ab.
Avsic, Tom
core   +1 more source

Kresling Origami‐Based Metamaterial Robot for Dynamic Electromagnetic Control

Advanced Science, EarlyView.
A reconfigurable metamaterial system integrates deformable origami units with high‐permittivity ceramic plates. Pneumatic switching between structural states alters local resonance conditions, enabling dynamic radar stealth and adaptive microwave reflection for mobile communication.
Xinxi Zeng, Long Zhou, Shaojie Xi, Yixuan Gao, Desheng Pan, Chaoyang Sun, Haoxin Sun, Xian Wang, Lingyun Qian, Peipei Li, Pengfei Zhu, Bo Li, Jiang Luo, Ji Zhou   +13 more
wiley   +1 more source

Lightweight, Elastic Ceramic Fabrics for Broadband Electromagnetic Absorption and High Temperature Thermal Insulation

Advanced Science, EarlyView.
This study reports lightweight, elastic ceramic fabrics with broadband electromagnetic absorption (EAB = 9.8 GHz) and high‐temperature thermal insulation, enabled by precise microstructural control during ultrafast high‐temperature sintering (UHS), which induces the precipitation of defect‐rich t‐ZrO2 nanograins and turbostratic C nanoclusters.
Jiahao Yang, Qi Ding, Juanjuan Xu, Fei Yan, Rui Wang, Yuena Zhang, Chao Zhao, Zhi Cheng, Yuchi Fan, Wan Jiang   +9 more
wiley   +1 more source

Compatible Stealth for Infrared and Radar Bands: Mechanisms, Materials, and Design Strategies

Small Science
Stealth technology is a cornerstone of battlefield electro‐optical countermeasures, essential for improving the survivability and penetration capability of military platforms.
Junfeng Fu, Yi Liang, Wei Cai, Hongjing Wu, Youan Xu   +4 more
doaj   +1 more source

Detecting aircraft made in stealth technology [PDF]

, 2014
Problem „niewidzialności” statków powietrznych w locie pojawił się niemal równolegle z ich zastosowaniem bojowym. Początkowo dotyczyło to ograniczenia widzialności w zakresie fal świetlnych.
Truskowski, A.
core   +1 more source

Modified MXene Aerogel With Broadband Microwave Absorption Inspired by Melanophila Acuminata Beetle

Advanced Science, EarlyView.
This work introduces a novel biomimetic strategy inspired by the infrared‐sensing sensilla of the Melanophila acuminata beetle. We have designed a multi‐level aerogel, featuring a three‐dimensional carbon framework decorated with synergistic CeO2 nanoparticles and Ti3C2Tx MXene nanosheets.
Zhiwei Liu, Dingyu Xu, Zhaobo Liu, Haitian Song, Qianqian Zhang, Junxiao Zhou, Xiewen Wen   +6 more
wiley   +1 more source

Application, development, and challenges of stealth materials/structures in next-generation aviation equipment

Applied Surface Science Advances
Accessing the electromagnetic spectrum is the essence of modern warfare, which is determined by the detection direction, the airframe structure, and the material.
Li Jin, Yiming Zhao, Chen Chen, Jianwei Zhang, Yonglyu He, Changping Yin, Nan Wu, Jun Tang, Suli Xing   +8 more
doaj   +1 more source