宽带天线下人体头部模型SAR评估的DGTD方法

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting Pub Date : 2017-10-18 DOI:10.1109/APUSNCURSINRSM.2017.8072938

Geng Chen, Lei Zhao, Wenhua Yu, Jianming Jin

{"title":"宽带天线下人体头部模型SAR评估的DGTD方法","authors":"Geng Chen, Lei Zhao, Wenhua Yu, Jianming Jin","doi":"10.1109/APUSNCURSINRSM.2017.8072938","DOIUrl":null,"url":null,"abstract":"An accurate and fast algorithm is proposed to evaluate the specific absorption rate (SAR) in an anatomically realistic human head model exposed to a wideband antenna. The algorithm is based on the discontinuous Galerkin time domain (DGTD) method using hybrid meshes. Hexahedral and tetrahedral meshes are used, respectively, to model the human head with a voxel data format and the wideband antenna with curved and thin structures. The hexahedral and tetrahedral meshes are connected with pyramidal meshes. The Debye model is used to model the dispersive property of the human head tissues. The efficiency of the proposed algorithm is demonstrated by numerical results for SAR in CMODEL exposed to an ultra-wideband antenna.","PeriodicalId":264754,"journal":{"name":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"DGTD method for SAR evaluation in a human head model exposed to a wideband antenna\",\"authors\":\"Geng Chen, Lei Zhao, Wenhua Yu, Jianming Jin\",\"doi\":\"10.1109/APUSNCURSINRSM.2017.8072938\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An accurate and fast algorithm is proposed to evaluate the specific absorption rate (SAR) in an anatomically realistic human head model exposed to a wideband antenna. The algorithm is based on the discontinuous Galerkin time domain (DGTD) method using hybrid meshes. Hexahedral and tetrahedral meshes are used, respectively, to model the human head with a voxel data format and the wideband antenna with curved and thin structures. The hexahedral and tetrahedral meshes are connected with pyramidal meshes. The Debye model is used to model the dispersive property of the human head tissues. The efficiency of the proposed algorithm is demonstrated by numerical results for SAR in CMODEL exposed to an ultra-wideband antenna.\",\"PeriodicalId\":264754,\"journal\":{\"name\":\"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting\",\"volume\":\"35 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-10-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072938\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APUSNCURSINRSM.2017.8072938","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

提出了一种准确、快速的算法来评估人体头部模型在宽带天线下的比吸收率(SAR)。该算法基于不连续伽辽金时域(DGTD)方法，采用混合网格。采用六面体和四面体网格分别对人体头部进行体素数据格式的建模，采用弯曲和薄结构的宽带天线对人体头部进行建模。六面体和四面体网格与锥体网格相连。德拜模型用于模拟人体头部组织的色散特性。对CMODEL中暴露在超宽带天线下的SAR进行了数值仿真，验证了该算法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

DGTD method for SAR evaluation in a human head model exposed to a wideband antenna

An accurate and fast algorithm is proposed to evaluate the specific absorption rate (SAR) in an anatomically realistic human head model exposed to a wideband antenna. The algorithm is based on the discontinuous Galerkin time domain (DGTD) method using hybrid meshes. Hexahedral and tetrahedral meshes are used, respectively, to model the human head with a voxel data format and the wideband antenna with curved and thin structures. The hexahedral and tetrahedral meshes are connected with pyramidal meshes. The Debye model is used to model the dispersive property of the human head tissues. The efficiency of the proposed algorithm is demonstrated by numerical results for SAR in CMODEL exposed to an ultra-wideband antenna.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

自引率

0.00%

发文量