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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sang Heun Lee Jaebok Lee Young Joong Yoon Sangbok Park Changyul Cheon Kihyun Kim Sangwook Nam |
| Copyright Year | 1964 |
| Abstract | This paper presents the design of a wideband spiral antenna for ingestible capsule endoscope systems and a comparison between the experimental results in a human phantom and a pig under general anesthesia. As wireless capsule endoscope systems transmit real-time internal biological image data at a high resolution to external receivers and because they operate in the human body, a small wideband antenna is required. To incorporate these properties, a thick-arm spiral structure is applied to the designed antenna. To make practical and efficient use of antennas inside the human body, which is composed of a high dielectric and lossy material, the resonance characteristics and radiation patterns were evaluated through a measurement setup using a liquid human phantom. The total height of the designed antenna is 5 mm and the diameter is 10 mm. The fractional bandwidth of the fabricated antenna is about 21% with a voltage standing-wave ratio of less than 2, and it has an isotropic radiation pattern. These characteristics are suitable for wideband capsule endoscope systems. Moreover, the received power level was measured using the proposed antenna, a circular polarized receiver antenna, and a pig under general anesthesia. Finally, endoscopic capsule images in the stomach and large intestine were captured using an on-off keying transceiver system. |
| Sponsorship | IEEE Engineering in Medicine and Biology Society |
| Page Count | 8 |
| File Size | 1495104 |
| Starting Page | 1734 |
| Ending Page | 1741 |
| File Format | |
| ISSN | 00189294 |
| Volume Number | 58 |
| Issue Number | 6 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Antenna measurements Spirals Endoscopes Antenna radiation patterns Phantoms Humans wideband spiral antenna Biotelemetry capsule endoscope endoscopic capsule images human phantom |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biomedical Engineering |
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