{"title":"用于胶囊内窥镜的超宽带低频段植入天线设计","authors":"Yuta Morimoto, D. Anzai, Jianqing Wang","doi":"10.1109/ISMICT.2013.6521700","DOIUrl":null,"url":null,"abstract":"This paper investigated two kinds of design of implant antennas in ultra wide-band (UWB) low-band (3.4-4.8 GHz) for capsule endoscopes. First, two kinds of hemispherical antennas, one has a helical structure and the other has a loop structure, were designed. The hemispherical antennas match for the shape of capsule endoscopes. The reflection coefficient S11 and the directivity of the hemispherical antennas in UWB low-band were investigated in detail. Next, a simplified planar design of the hemispherical loop antenna was proposed for being easy to fabricate. The characteristic of the planar loop antenna in UWB low-band was investigated by both numerical simulation and experiment. In addition to the S11, the path loss of the fabricated planar loop antenna was also measured in a fluid phantom simulating a human body tissue, with a planar unbalance dipole antenna as the receiving antenna. The measured path loss was compared with the simulated result, and good agreement was confirmed between them.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":"{\"title\":\"Design of ultra wide-band low-band implant antennas for capsule endoscope application\",\"authors\":\"Yuta Morimoto, D. Anzai, Jianqing Wang\",\"doi\":\"10.1109/ISMICT.2013.6521700\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper investigated two kinds of design of implant antennas in ultra wide-band (UWB) low-band (3.4-4.8 GHz) for capsule endoscopes. First, two kinds of hemispherical antennas, one has a helical structure and the other has a loop structure, were designed. The hemispherical antennas match for the shape of capsule endoscopes. The reflection coefficient S11 and the directivity of the hemispherical antennas in UWB low-band were investigated in detail. Next, a simplified planar design of the hemispherical loop antenna was proposed for being easy to fabricate. The characteristic of the planar loop antenna in UWB low-band was investigated by both numerical simulation and experiment. In addition to the S11, the path loss of the fabricated planar loop antenna was also measured in a fluid phantom simulating a human body tissue, with a planar unbalance dipole antenna as the receiving antenna. The measured path loss was compared with the simulated result, and good agreement was confirmed between them.\",\"PeriodicalId\":387991,\"journal\":{\"name\":\"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-03-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"22\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISMICT.2013.6521700\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISMICT.2013.6521700","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design of ultra wide-band low-band implant antennas for capsule endoscope application
This paper investigated two kinds of design of implant antennas in ultra wide-band (UWB) low-band (3.4-4.8 GHz) for capsule endoscopes. First, two kinds of hemispherical antennas, one has a helical structure and the other has a loop structure, were designed. The hemispherical antennas match for the shape of capsule endoscopes. The reflection coefficient S11 and the directivity of the hemispherical antennas in UWB low-band were investigated in detail. Next, a simplified planar design of the hemispherical loop antenna was proposed for being easy to fabricate. The characteristic of the planar loop antenna in UWB low-band was investigated by both numerical simulation and experiment. In addition to the S11, the path loss of the fabricated planar loop antenna was also measured in a fluid phantom simulating a human body tissue, with a planar unbalance dipole antenna as the receiving antenna. The measured path loss was compared with the simulated result, and good agreement was confirmed between them.
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