Transmission of RF Signals Between MICS Loop Antennas in Free Space and Implanted in the Human Head
Authors:
- 2 June 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 57 (6) , 1850-1854
Abstract
This communication characterizes the transmission of radio frequency (RF) signals in Medical Implant Communications Service (MICS) band (402-405 MHz) between the loop antennas placed in free space and implanted into a human head (beneath the skull) for medical applications. The investigation is carried out using a commercial EM simulator XFDTD based on a finite-difference time-domain (FDTD) method with a numerical human head model, and verified by the measurements with a phantom. The study shows the effects of human head on the transmission of RF signals between the antennas inside and outside a human head. The information derived from this study is useful for the link budget of medical systems with the wireless connection between implanted devices in human heads and external central controllers.Keywords
This publication has 7 references indexed in Scilit:
- Performance of a radio link between a base station and a medical implant utilising the MICS standard2007
- Path loss model for wireless narrowband communication above flat phantomElectronics Letters, 2006
- Implanted Antennas Inside a Human Body: Simulations, Designs, and CharacterizationsIEEE Transactions on Microwave Theory and Techniques, 2004
- Design of Implantable Microstrip Antenna for Communication With Medical ImplantsIEEE Transactions on Microwave Theory and Techniques, 2004
- Data communication between brain implants and computerIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2003
- Brain-implantable biomimetic electronics as the next era in neural prostheticsProceedings of the IEEE, 2001
- Radiowave propagation from a tissue-implanted source at 418 MHz and 916.5 MHzIEEE Transactions on Biomedical Engineering, 2000