Electromagnetic radiation from ingested sources in the human intestine

Chirwa, L.C., Hammond, P.A., Roy, S. and Cumming, D.R.S. (2002) Electromagnetic radiation from ingested sources in the human intestine. In: 2nd Annual International IEEE-EMB Special Topic Conference on Microtechnologies in Medicine & Biology, Madison, Wisconsin, 2-4 May 2002, pp. 309-313. ISBN 0780374800 (doi: 10.1109/MMB.2002.1002336)

Abstract

There is currently considerable work on the development of wireless sensors that can be used in the small intestine. The radiation characteristics of sources in the gastro-intestinal (GI) tract cannot be readily calculated due to the complexity of the human body and its composite tissues, each with different electrical characteristics. This paper presents radiation characteristics for sources in the GI tract that should allow for the optimum design of more efficient telemetry systems. The characteristics are determined using the finite difference time domain method with a realistic antenna model on an established fully segmented human body model. Maximum radiation was found to occur between 450 and 900 MHz and the gut region was found generally to inhibit vertically polarized electric fields more than horizontally polarized fields.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Cumming, Professor David
• Authors: Chirwa, L.C., Hammond, P.A., Roy, S., and Cumming, D.R.S.
• Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Research Group: Device Modelling Group
• Publisher: Institute of Electrical and Electronics Engineers
• ISBN: 0780374800
• Copyright Holders: Copyright © 2002 Institute of Electrical and Electronics Engineers
• First Published: First published in 2nd Annual International IEEE-EMB Special Topic Conference on Microtechnologies in Medicine and Biology (2002):309-313
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher