Receiving UWB antenna for wireless capsule endoscopy communications

被引：0

作者：

Kissi, Chaïmaâ ^{[1
]}

Särestöniemi, Mariella ^{[2
]}

Kumpuniemi, Timo ^{[2
]}

Myllymäki, Sami ^{[3
]}

Sonkki, Marko ^{[2
]}

Mäkelä, Juha-Pekka ^{[2
]}

Srifi, Mohamed Nabil ^{[1
]}

Jantunen, Heli ^{[3
]}

Pomalaza-Raez, Carlos ^{[4
]}

机构：

[1] Electronic Electronics and Telecommunication Systems Research Group, National School of Applied Sciences (ENSA), Ibn Tofail University, Kenitra, Morocco

[2] Centre for Wireless Communications, Faculty of Information Technology and Electrical Engineering, University of Oulu, Finland

[3] Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, Finland

[4] Department of Electrical and Computer Engineering, Purdue University, Fort Wayne,IN,46805, United States

来源：

Progress In Electromagnetics Research C | 2020年 / 101卷

关键词：

Wireless capsule endoscopy systems utilize a combination of hardware and software devices to ensure the healthcare of a human being. In praise of involved antennas in the overall medical system design; UWB (Ultra-Wideband) range occupies the highest ranks in the literature. The low-band of UWB is regarded as the best frequency range; within the approved standards; to realize the better transmission of captured medical images by the capsule inside the SI tract; in terms of high resolution and low-path loss. A variety of passive capsules have been designed and made available in the literature; while the accurate design of the corresponding on-body antenna is lagging. For this purpose; this paper provides an extended study of a recently published on-body antenna operating at 3.75–4.25 GHz band. The measured antenna realizes good directivity of 5.78 dBi and 9.50 dBi towards the body without and with the cavity; respectively. The direction of the proposed on-body antenna beam is targeted to be mounted on the body surface. On-body simulations were run with CST Microwave Studio by involving an abdominal multi-layer model; and followed by navel and back areas of the voxel model to predict the antenna behavior close to different lossy body environments. Later; the antenna structure was measured next to a real human abdomen. Simulation results reveal that the proposed antenna with or without the cavity enables enhanced in-body communication when mounted on the abdomen with less path loss. This is supported by the low power totaling 20 dB at the SI (Small Intestine) tract. Furthermore; on-body measurements confirm the good antenna performance. Consequently; the planar compact antenna is regarded as a good on-body candidate for wireless capsule endoscopy systems. © 2020; Electromagnetics Academy. All rights reserved;

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页码：53 / 69

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