University of Oulu

M. Särestöniemi, C. P. Raez, C. Kissi, M. Berg, M. Hämäläinen and J. Iinatti, "Impact of the antenna cavity on in-body propagation and channel characteristics between capsule endoscope and on-body antenna," 2020 14th International Symposium on Medical Information Communication Technology (ISMICT), Nara, Japan, 2020, pp. 1-6, doi: 10.1109/ISMICT48699.2020.9152622

Impact of the antenna cavity on in-body propagation and channel characteristics between capsule endoscope and on-body antenna

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Author: Särestöniemi, Mariella1; Pomalaza Raez, Carlos2; Kissi, Chaïmaâ3;
Organizations: 1Center for Wireless Communications, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
2Department of Electrical and Computer Engineering, Purdue University, Fort Wayne, Indiana 46805, USA
3Electronics and Telecommunication Systems Research Group, National School of Applied Sciences (ENSA) Ibn Tofail University Kenitra, Morocco
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.9 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2020080448046
Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2020-08-04
Description:

Abstract

This paper presents a study on the impact of the antenna cavity on the in-body propagation and ultra wideband wireless body area networks (UWB-WBAN) radio channel characteristics between the capsule endoscope and the on-body antenna. The study is conducted with CST Studio Suite simulations and one of its anatomical voxel models. A simplified capsule model and two different on-body antennas designed for low-band UWB in-body communications are used in this study. The first antenna has a smaller cavity while the second antenna has a larger cavity. The radio channel characteristics between a capsule endoscope model and an on-body antenna are evaluated with the cavity and without the cavity in frequency and time domains. Furthermore, 2D power flow representations are studied to get insight how the presence and absence of the cavity changes the signal propagation within the tissues. It is found that with the antenna having a smaller cavity, the cavity impact depends on the on-body antenna location respect to the abdominal muscle layers. Instead, the antenna having a larger cavity enables to capture multipath components from the wider area resulting in stronger signal regardless where the antenna is located.

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Series: International Symposium on Medical Information and Communication Technology
ISSN: 2326-828X
ISSN-E: 2326-8301
ISSN-L: 2326-828X
ISBN: 978-1-7281-6617-9
ISBN Print: 978-1-7281-6618-6
Pages: 1 - 6
DOI: 10.1109/ISMICT48699.2020.9152622
OADOI: https://oadoi.org/10.1109/ISMICT48699.2020.9152622
Host publication: 2020 14th International Symposium on Medical Information Communication Technology (ISMICT), 20-22 May 2020, Nara, Japan
Conference: International Symposium on Medical Information and Communication Technology
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
Funding: This research has been financially supported by the project This work is supported in part by the projects WBAN Communications in the Congested Environments (MeCCE), the Academy of Finland 6Genesis Flagship (grant 318927) and the European Union's Horizon 2020 programme under the Marie Sklodowska-Curie grant agreement No. 872752. Dr. Marko Sonkki is acknowledged for his participation on the on-body antenna design.
EU Grant Number: (872752) ROVER - RELIABLE TECHNOLOGIES AND MODELS FOR VERIFIED WIRELESS BODY-CENTRIC TRANSMISSION AND LOCALIZATION
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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