Please use this identifier to cite or link to this item:
Title: Characterization of in- and near-body radio frequency transmission loss for biomedical implants
Authors: Qing, X.
See, T.S.P.
Chen, Z.N. 
Chiam, T.M.
Goh, C.K.
Keywords: Biomedical Applications
Capsule Endoscopy
Embedded Antenna
Implant Antenna
Issue Date: Mar-2013
Citation: Qing, X., See, T.S.P., Chen, Z.N., Chiam, T.M., Nasimuddin, Goh, C.K. (2013-03). Characterization of in- and near-body radio frequency transmission loss for biomedical implants. Journal of Medical Imaging and Health Informatics 3 (1) : 112-119. ScholarBank@NUS Repository.
Abstract: The experimental methodologies for characterizing in- and near-body radio frequency (RF) transmission loss are studied in this paper. Traditionally, the RF transmission loss was investigated using numerical model with a specific implanted antenna. The results obtained are antenna dependent and therefore not suitable for universal link budget calculation for biomedical implant systems. It will be desirable if the transmission loss within/outside the body can be decoupled from the antenna. In this paper, the methods and measurement set-ups for characterizing the in- and near-body RF transmission loss with decoupled antenna effect are presented. Dipole and loop antennas are used in the measurement; by embedding the antennas in high dielectric constant tissue, the size of the testing antennas is much reduced and therefore only a small piece of the tissue sample will be adequate for the measurement. Furthermore, the fields of the antennas are confined within the tissue, the characteristics of the embedded antennas are little affected by the presence of the tested tissue samples, which is vital for achieve accurate and reliable results. The studies are carried out at the Medical Implanted Communication Service (MICS) band of 402-405 MHz and the unlicensed Industrial, Scientific and Medical (ISM) band of 902-928 MHz. © 2013 American Scientific Publishers.
Source Title: Journal of Medical Imaging and Health Informatics
ISSN: 21567018
DOI: 10.1166/jmihi.2013.1140
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Aug 6, 2020

Page view(s)

checked on Aug 3, 2020

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.