摘要翻译：
无线胶囊内窥镜(WCE)系统被用来捕捉人体消化道的图像，用于医学应用。天线是WCE系统中最重要的部件之一。在本文中，我们为工作在433 MHz ISM频段的WCE系统提供了新颖的小天线解决方案。体内胶囊发射器使用超宽带外壁共形环形天线，而体内接收器使用带有部分地平面的印刷单极子天线。采用结肠等效组织体模和CST Gustav体素人体模型对胶囊天线进行了数值研究。在结肠组织体模中的模拟结果通过液体体模的体外测量得到了验证。仿真结果表明，该胶囊天线在309～1104 MHz范围内具有-10 dB的阻抗匹配特性。超宽带特性使胶囊天线能够容忍由于胶囊中的电子模块和由于胃肠道中各种不同组织的邻近而产生的失谐效应。在结肠组织体模和CST Gustav体素人体模型上对体上天线进行了数值评估，随后进行了体外和离体测量验证。在仿真和测量中，在390 MHz到500 MHz范围内，体上天线的阻抗匹配超过-10 dB。最后，本文报告了用我们的天线方案对体内胶囊发射机和体内接收机之间的无线链路的路径损耗进行了数值和实验研究。在模拟和测量中，对于任何胶囊方位和位置，路径损耗都小于50 dB。
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英文标题：
《Antenna Systems for Wireless Capsule Endoscope: Design, Analysis and
  Experimental Validation》
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作者：
Md. Suzan Miah, Ahsan Noor khan, Clemens Icheln, Katsuyuki Haneda, and
  Ken-ichi Takizawa
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最新提交年份：
2018
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分类信息：

一级分类：Electrical Engineering and Systems Science        电气工程与系统科学
二级分类：Signal Processing        信号处理
分类描述：Theory, algorithms, performance analysis and applications of signal and data analysis, including physical modeling, processing, detection and parameter estimation, learning, mining, retrieval, and information extraction. The term "signal" includes speech, audio, sonar, radar, geophysical, physiological, (bio-) medical, image, video, and multimodal natural and man-made signals, including communication signals and data. Topics of interest include: statistical signal processing, spectral estimation and system identification; filter design, adaptive filtering / stochastic learning; (compressive) sampling, sensing, and transform-domain methods including fast algorithms; signal processing for machine learning and machine learning for signal processing applications; in-network and graph signal processing; convex and nonconvex optimization methods for signal processing applications; radar, sonar, and sensor array beamforming and direction finding; communications signal processing; low power, multi-core and system-on-chip signal processing; sensing, communication, analysis and optimization for cyber-physical systems such as power grids and the Internet of Things.
信号和数据分析的理论、算法、性能分析和应用，包括物理建模、处理、检测和参数估计、学习、挖掘、检索和信息提取。“信号”一词包括语音、音频、声纳、雷达、地球物理、生理、（生物）医学、图像、视频和多模态自然和人为信号，包括通信信号和数据。感兴趣的主题包括：统计信号处理、谱估计和系统辨识；滤波器设计；自适应滤波/随机学习；（压缩）采样、传感和变换域方法，包括快速算法；用于机器学习的信号处理和用于信号处理应用的机器学习；网络与图形信号处理；信号处理中的凸和非凸优化方法；雷达、声纳和传感器阵列波束形成和测向；通信信号处理；低功耗、多核、片上系统信号处理；信息物理系统的传感、通信、分析和优化，如电网和物联网。
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英文摘要：
  Wireless capsule endoscopy (WCE) systems are used to capture images of the human digestive tract for medical applications. The antenna is one of the most important components in a WCE system. In this paper, we provide novel small antenna solutions for a WCE system operating at the 433 MHz ISM band. The in-body capsule transmitter uses an ultrawideband outer-wall conformal loop antenna, whereas the on-body receiver uses a printed monopole antenna with a partial ground plane. A colon-equivalent tissue phantom and CST Gustav voxel human body model were used for the numerical studies of the capsule antenna. The simulation results in the colon-tissue phantom were validated through in-vitro measurements using a liquid phantom. According to the phantom simulations, the capsule antenna has -10 dB impedance matching from 309 to 1104 MHz. The ultrawideband characteristic enables the capsule antenna to tolerate the detuning effects due to electronic modules in the capsule and due to the proximity of various different tissues in gastrointestinal tracts. The on-body antenna was numerically evaluated on the colon-tissue phantom and the CST Gustav voxel human body model, followed by in-vitro and ex-vivo measurements for validation. The on-body antenna exceeds -10 dB impedance matching from 390 MHz to 500 MHz both in simulations and measurements. Finally, this paper reports numerical and experimental studies of the path loss for the radio link between an in-body capsule transmitter and an on-body receiver using our antenna solutions. The path loss both in simulations and measurements is less than 50 dB for any capsule orientation and location.
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PDF链接：
https://arxiv.org/pdf/1804.01577