{"title":"用于产生正交 H 场成分以定位植入设备的优化开关式集成发射机垫块","authors":"Vivek Kumar Srivastava;Ashwani Sharma","doi":"10.1109/JERM.2024.3409423","DOIUrl":null,"url":null,"abstract":"This paper proposes an optimized switching integrated transmitter to generate highly non-uniform magnetic field (H-field) components for near-field localization applications. The localization accuracy of a magnetic-based localization system depends on the degree of non-uniformity present in the H-field distribution. Targeting this, several state-of-the-art designs presented eight spatially distributed transmitter structures. However, the absence of required H-field components at several receiver positions resulted in poor localization performance. To overcome this problem, an overlapping coil transmitter structure has been proposed in this work that spreads the H-field components at the receiver region. Further optimization of the transmitter coil design parameters is performed analytically to accomplish a highly non-uniform H-field at the receiver location and miniaturize the transmitter size. A time-divisional approach has been exploited and realized using a switching technique to acquire the required voltage samples at the receiver. The proposed transmitter is realized using a high-frequency Litz wire, and the switching is performed by adopting DPDT switches. The fabricated prototype is experimentally verified, and the measured results show a good agreement with the analytical result. This demonstrates the potential of the proposed transmitter for near-field localization applications such as the localization of biomedical implants, wireless endoscopy capsules, etc.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 4","pages":"363-371"},"PeriodicalIF":3.0000,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An Optimized Switching Integrated Transmitter Pad for Generating Orthogonal H-Field Components to Localize Implanted Devices\",\"authors\":\"Vivek Kumar Srivastava;Ashwani Sharma\",\"doi\":\"10.1109/JERM.2024.3409423\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper proposes an optimized switching integrated transmitter to generate highly non-uniform magnetic field (H-field) components for near-field localization applications. The localization accuracy of a magnetic-based localization system depends on the degree of non-uniformity present in the H-field distribution. Targeting this, several state-of-the-art designs presented eight spatially distributed transmitter structures. However, the absence of required H-field components at several receiver positions resulted in poor localization performance. To overcome this problem, an overlapping coil transmitter structure has been proposed in this work that spreads the H-field components at the receiver region. Further optimization of the transmitter coil design parameters is performed analytically to accomplish a highly non-uniform H-field at the receiver location and miniaturize the transmitter size. A time-divisional approach has been exploited and realized using a switching technique to acquire the required voltage samples at the receiver. The proposed transmitter is realized using a high-frequency Litz wire, and the switching is performed by adopting DPDT switches. The fabricated prototype is experimentally verified, and the measured results show a good agreement with the analytical result. This demonstrates the potential of the proposed transmitter for near-field localization applications such as the localization of biomedical implants, wireless endoscopy capsules, etc.\",\"PeriodicalId\":29955,\"journal\":{\"name\":\"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology\",\"volume\":\"8 4\",\"pages\":\"363-371\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2024-06-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10555384/\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10555384/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
摘要
本文提出了一种优化的开关式集成发射器,可为近场定位应用产生高度不均匀的磁场(H-场)分量。基于磁场的定位系统的定位精度取决于 H 场分布的不均匀程度。针对这一点,一些最先进的设计提出了八种空间分布式发射器结构。然而,由于多个接收器位置缺乏所需的 H 场成分,导致定位性能不佳。为克服这一问题,本研究提出了一种重叠线圈发射器结构,可在接收器区域扩散 H 场分量。通过分析进一步优化发射器线圈设计参数,在接收器位置实现高度不均匀的 H 场,并缩小发射器尺寸。利用分时方法,并通过开关技术在接收器获取所需的电压样本。拟议的发射器使用高频利兹线实现,开关采用 DPDT 开关。制作的原型经过了实验验证,测量结果与分析结果非常吻合。这证明了所提出的发射器在近场定位应用中的潜力,如生物医学植入物的定位、无线内窥镜胶囊等。
An Optimized Switching Integrated Transmitter Pad for Generating Orthogonal H-Field Components to Localize Implanted Devices
This paper proposes an optimized switching integrated transmitter to generate highly non-uniform magnetic field (H-field) components for near-field localization applications. The localization accuracy of a magnetic-based localization system depends on the degree of non-uniformity present in the H-field distribution. Targeting this, several state-of-the-art designs presented eight spatially distributed transmitter structures. However, the absence of required H-field components at several receiver positions resulted in poor localization performance. To overcome this problem, an overlapping coil transmitter structure has been proposed in this work that spreads the H-field components at the receiver region. Further optimization of the transmitter coil design parameters is performed analytically to accomplish a highly non-uniform H-field at the receiver location and miniaturize the transmitter size. A time-divisional approach has been exploited and realized using a switching technique to acquire the required voltage samples at the receiver. The proposed transmitter is realized using a high-frequency Litz wire, and the switching is performed by adopting DPDT switches. The fabricated prototype is experimentally verified, and the measured results show a good agreement with the analytical result. This demonstrates the potential of the proposed transmitter for near-field localization applications such as the localization of biomedical implants, wireless endoscopy capsules, etc.