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RF characteristics of wireless capsule endoscopy in human body

  • Mechanical Engineering, Control Science and Information Engineering
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Abstract

The wireless capsule endoscope, as a small electronic device, has conquered some limitations of traditional wired diagnosing tools, such as the uncomfortableness of the cables for the patient and the inability to examine the very convoluted small intestine section. However, this technique is still encountering a lot of practical challenges and is looking for feasible improvements. This work investigates the RF performance of the wireless capsule endoscope system by studying the electromagnetic (EM) wave propagation within the human body. A wireless capsule endoscopy transmission channel model is constructed to serve the purpose of investigating signal attenuations according to the relative position between the transmitter and the receiver. Within 300-500 MHz, the S21 results are regular and do not display any sudden changes, which allows a suitable expression to be derived for S 21 in terms of frequency and offset. The results provide useful information for capsule localization.

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Authors and Affiliations

  1. Department of Electronic and Electrical Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, 215123, China

    Jing-chen Wang  (王璟琛), Zhao Wang  (王炤), Mark Leach, Sanghyuk Lee & Eng Gee Lim

  2. Department of Electrical Engineering and Electronics, The University of Liverpool, Liverpool, L69 3GJ, UK

    Yi Huang

Authors
  1. Jing-chen Wang  (王璟琛)
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  2. Zhao Wang  (王炤)
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  3. Mark Leach
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  4. Sanghyuk Lee
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  5. Eng Gee Lim
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  6. Yi Huang
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Corresponding author

Correspondence to Eng Gee Lim.

Additional information

Foundation item: Project(BK20131183) supported by the Natural Science Foundation of Jiangsu Province, China; Projects(RDF-14-03-24, RDF-14-02-48) supported by Research Development Fund of Xi’an Jiaotong-Liverpool University, China

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Wang, Jc., Wang, Z., Leach, M. et al. RF characteristics of wireless capsule endoscopy in human body. J. Cent. South Univ. 23, 1198–1207 (2016). https://doi.org/10.1007/s11771-016-0369-4

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  • DOI: https://doi.org/10.1007/s11771-016-0369-4

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