Duan, Zhu, Xu, Li-Jie, Gao, Steven, Geyi, Wen (2018) Integrated Design of Wideband Omnidirectional Antenna and Electronic Components for Wireless Capsule Endoscopy Systems. IEEE Access, 6 . pp. 29626-29636. ISSN 2169-3536. (doi:10.1109/ACCESS.2018.2840689) (KAR id:67376)
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Official URL: https://doi.org/10.1109/ACCESS.2018.2840689 |
Abstract
This paper presents a wideband antenna with
omnidirectional radiation pattern for wireless capsule endoscopy
(WCE) systems. The proposed antenna radiates as a slot structure
formed between a central copper cylinder and a copper strip
attached to the interior surface of biocompatible polyimide shell.
Main features of the antenna include: 1). An integrated design of
the antenna and electronic components in the capsule is employed.
And, by utilizing the entire inner space of the capsule, the
radiating aperture of antenna is increased to the maximum; 2).
The copper cylinder can be used to house electronic components,
therefore the potential electromagnetic interferences (EMI)
brought by battery and electronic circuits are reduced to the
minimum; 3) The antenna in tissue has a wide bandwidth from
0.721 to 1.705 GHz, covering both 0.902-0.928 GHz Industrial,
Scientific, and Medical (ISM) band and 1.395-1.4 GHz Wireless
Medical Telemetry Service (WMTS) band. This is achieved by
optimizing the stepped width of copper strip; 4). The antenna
inside human tissues has stable omnidirectional radiation patterns
across all operating frequencies. This is an indispensable
characteristic due to the unpredictable orientation of capsule in
the gastrointestinal (GI) tract. Stable patterns are achieved by
having strong electric fields concentrated within the top substrate
pointing at the same direction. The integrated design concept,
wideband impedance matching and stable omnidirectional
radiation patterns make the proposed antenna a promising
candidate for future WCE system.
Item Type: | Article |
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DOI/Identification number: | 10.1109/ACCESS.2018.2840689 |
Uncontrolled keywords: | Wireless capsule antenna, integrated design, wideband, ISM band, WMTS band, omnidirectional radiation pattern |
Divisions: | Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts |
Depositing User: | Steven Gao |
Date Deposited: | 20 Jun 2018 10:12 UTC |
Last Modified: | 04 Jul 2023 11:27 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/67376 (The current URI for this page, for reference purposes) |
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