电子胶囊的宽频带柔性环天线设计

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• 英文论文题名：Design of Broadband Flexible Loop Antenna for Electronic Capsule Endoscopy
• 论文作者：蔡露露 ; 王蒙军 ; 郑宏兴 ; 杨泽
• 英文论文作者：Lulu Cai ; Mengjun Wang ; Hongxing Zheng ; Ze Yang ; School of Electronics and Information Engineering ; Hebei University of Technology ; Tianjin Key Laboratory of Electronic Materials and Devices
• 年：2017
• 作者机构：河北工业大学电子信息工程学院;天津市电子材料与器件重点实验室;
• 论文关键词：电子胶囊 ; 柔性天线 ; 宽频带 ; 聚酰亚胺
• 英文论文关键词：Electronic capsule endoscopy ; Flexible antenna ; Broadband ; Polyimide
• 会议召开时间：2017-05-08
• 会议录名称：2017年全国微波毫米波会议论文集（中册）
• 英文会议录名称：Proceedings of 2017 National Conference on Microwave and Millimeter Waves(NCMMW2017)
• 语种：中文
• 分类号：TN820
• 学会代码：ZDWB
• 会议名称：2017年全国微波毫米波会议
• 会议地点：中国浙江杭州
• 主办单位：中国电子学会
• 学会名称：中国电子学会微波分会
• 页数：4
• 文件大小：1209k
• 原文格式：D
• 会议级别：全国

摘要

天线是电子胶囊系统中由体内向体外传输病理信息的主要部件,但人体生理电参数以及电子胶囊电池会使天线谐振频率偏移,因此研究具有宽频特性并且能够与胶囊外壳共形的柔性天线。利用电磁仿真软件CST从理论上设计并分析了天线的性能,获得天线最佳结构尺寸参数,采用聚酰亚胺为基底材料、铜为导电材料制作了所设计的天线,以新鲜猪肉模拟人体生物组织,植入天线进行了实测,实验结果表明天线能够工作在402MHz谐振频率,阻抗带宽达到87.5%,能够覆盖250MHz-600MHz频段范围,可以满足医学应用场景。
Antenna is the important component in electronic capsule system for transmission pathological information from inside-body to outside-body, but physiological parameters of human body and battery of electronic capsule can bring antenna resonance frequency shift. So a broadband flexible antenna is researched which can be conformal to the capsule shell. The performance of antenna is analyzed theoretically by electromagnetic simulation software CST, and the optimum structure size parameters of antenna are obtained. This designed antenna is made of polyimide as the substrate material and copper as the conductive material, Fresh pork is used to simulate human biological tissue, and the antenna was implanted and measured. Experiment results show that the resonant frequency of antenna is 402 MHz, the impedance bandwidth is up to 87.5%, covering the range of 250MHz-600 MHz bandwidth, which can satisfy the medical applications scene.

引文

1 Izdebski P M,Rajagopalan H,Rahmat-Samii Y.Conformal Ingestible Capsule Antenna:A Novel Chandelier Meandered Design[J].IEEE Transactions on Antennas&Propagation,2009,Vol.57(4):900-909.
    2 Cheng X,Senior D E,Kim C,et.al.A Compact Omnidirectional Self-Packaged Patch Antenna with Complementary Split-Ring Resonator Loading for Wireless Endoscope Applications[J].IEEE Antennas&Wireless Propagation Letters,2011,Vol.10(1):1532-1535.
    3 Alrawashdeh R,Huang Y,Cao P.A conformal U-shaped loop antenna for biomedical applications[C].Proceedings of IEEE International Conference on Antennas and Propagation.New York,USA,IEEE,2013,Pages:157-160.
    4 Xu L J,Guo Y X,Wu W.Bandwidth Enhancement of an Implantable Antenna[J].IEEE Antennas&Wireless Propagation Letters,2015,14(7):1510-1513.
    5 Alrawashdeh R,Huang Y,Kom M,et.al.A Broadband Flexible Implantable Loop Antenna with Complementary Split Ring Resonators[J].IEEE Antennas&Wireless Propagation Letters,2015,14(10):1506-1509.
    6 Yun S,Kim K,Nam S.Outer-Wall Loop Antenna for Ultra-Wideband Capsule Endoscope System[J].IEEE Antennas&Wireless Propagation Letters,2010,9(1):1135-1138.
    7 Nageswara R C,Raghavan S.Design of Multiband Implanted Loop Antenna for In-Body Application[C].Proceedings of IEEE International Conference on Power,Control,Communication and Computational Technologies for Sustainable Growth,New York,USA,IEEE,2015,Pages:239-242.