Title :
Medical implants design. Issues and requirements
Author :
Koulouridis, Stavros
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Patras, Patras, Greece
Abstract :
Antennas for medical implants are being introduced continuously lately. Allowed to operate at 402-405MHz (Medical Implant Communication Services/MICS) they can be relatively large. Minimization of such antennas is not trivial and even when it is successful it can lead to very sensitive designs or with poor radiation characteristics. Further skin/air impedance causes efficiency issues and sets limits to maximum receiver/source distances. Added to that, Specific Absorption Rate (SAR) levels can be very high and maximum available power may be limited. In this work we will try to draw some basic conclusions about current designs and discuss limitations. To that end, several designs will be reviewed.
Keywords :
UHF antennas; biomedical communication; prosthetics; frequency 402 MHz to 405 MHz; medical implant communication service; minimization; skin-air impedance; specific absorption rate; Dipole antennas; Implants; Microstrip antennas; Receiving antennas; microstrip antennas; path loss; radiation characteristics;
Conference_Titel :
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0918-0
Electronic_ISBN :
978-1-4577-0919-7
DOI :
10.1109/EuCAP.2012.6206319
