{"title":"一种用于跨介质环境下移动通信的可穿戴式超声驱动磁偶极子旋转谐振器","authors":"Zhi Cheng, Xiangyi Wang, Xiangmeng Lv, Jianming Sun, Zhaoqiang Chu, Jing Zhou, Shuxiang Dong","doi":"10.1038/s41467-025-59539-y","DOIUrl":null,"url":null,"abstract":"<p>Traditional MHz and GHz electromagnetic antennas face challenges of high attenuation rate in cross-medium communication; while mechanical antennas are hindered by their large size, high energy consumption and weak radiation capacity. Here, we report a centimeter-scale, wearable ultrasonically-actuated magnetic-dipole rotating resonator (UA-MDRR) for efficient extremely low frequency (ELF) electromagnetic wave transmission in extreme environments. The UA-MDRR employs a small multilayer piezoelectric ceramic (0.11 cm³) to rotate a disc-type NdFeB magnet, generating ELF radiation through an electro-mechanical-magnetic (EMM) coupling effect. This device achieves a high emission capacity of 24,000 nT/cm³@1 m, outperforming the state-of-the-art resonators/antennas by one to two orders of magnitude. It can emit a magnetic field strength of 2.64 pT in air and 2.12 pT underwater at 100 m, respectively, while consuming only 0.61 W of power. This innovation represents a groundbreaking advancement in cross-medium communication, offering a mobile wearable device for emergency communication in seawater for life saving.</p>","PeriodicalId":19066,"journal":{"name":"Nature Communications","volume":"35 1","pages":""},"PeriodicalIF":14.7000,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A wearable, ultrasonically-actuated magnetic-dipole rotating resonator for mobile communication in cross-medium environment\",\"authors\":\"Zhi Cheng, Xiangyi Wang, Xiangmeng Lv, Jianming Sun, Zhaoqiang Chu, Jing Zhou, Shuxiang Dong\",\"doi\":\"10.1038/s41467-025-59539-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Traditional MHz and GHz electromagnetic antennas face challenges of high attenuation rate in cross-medium communication; while mechanical antennas are hindered by their large size, high energy consumption and weak radiation capacity. Here, we report a centimeter-scale, wearable ultrasonically-actuated magnetic-dipole rotating resonator (UA-MDRR) for efficient extremely low frequency (ELF) electromagnetic wave transmission in extreme environments. The UA-MDRR employs a small multilayer piezoelectric ceramic (0.11 cm³) to rotate a disc-type NdFeB magnet, generating ELF radiation through an electro-mechanical-magnetic (EMM) coupling effect. This device achieves a high emission capacity of 24,000 nT/cm³@1 m, outperforming the state-of-the-art resonators/antennas by one to two orders of magnitude. It can emit a magnetic field strength of 2.64 pT in air and 2.12 pT underwater at 100 m, respectively, while consuming only 0.61 W of power. This innovation represents a groundbreaking advancement in cross-medium communication, offering a mobile wearable device for emergency communication in seawater for life saving.</p>\",\"PeriodicalId\":19066,\"journal\":{\"name\":\"Nature Communications\",\"volume\":\"35 1\",\"pages\":\"\"},\"PeriodicalIF\":14.7000,\"publicationDate\":\"2025-05-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Communications\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.1038/s41467-025-59539-y\",\"RegionNum\":1,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Communications","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1038/s41467-025-59539-y","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
A wearable, ultrasonically-actuated magnetic-dipole rotating resonator for mobile communication in cross-medium environment
Traditional MHz and GHz electromagnetic antennas face challenges of high attenuation rate in cross-medium communication; while mechanical antennas are hindered by their large size, high energy consumption and weak radiation capacity. Here, we report a centimeter-scale, wearable ultrasonically-actuated magnetic-dipole rotating resonator (UA-MDRR) for efficient extremely low frequency (ELF) electromagnetic wave transmission in extreme environments. The UA-MDRR employs a small multilayer piezoelectric ceramic (0.11 cm³) to rotate a disc-type NdFeB magnet, generating ELF radiation through an electro-mechanical-magnetic (EMM) coupling effect. This device achieves a high emission capacity of 24,000 nT/cm³@1 m, outperforming the state-of-the-art resonators/antennas by one to two orders of magnitude. It can emit a magnetic field strength of 2.64 pT in air and 2.12 pT underwater at 100 m, respectively, while consuming only 0.61 W of power. This innovation represents a groundbreaking advancement in cross-medium communication, offering a mobile wearable device for emergency communication in seawater for life saving.
期刊介绍：
Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.
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