Title :
Implantable compact antennas for wireless bio-telemetry: A comparative study
Author :
Islam, Shariful ; Esselle, Karu P. ; Bull, David ; Pilowsky, Paul M.
Author_Institution :
Dept. of Eng., Macquarie Univ., Sydney, NSW, Australia
Abstract :
This paper compares the performance of two compact implantable planar inverted-F antennas (I-PIFAs) designed to operate in the UHF ISM band around 900MHz. The total dimensions of Antenna 1 (Hilbert I-PIFA) and Antenna 2 (planar strip I-PIFA) are 25×33×7.6mm3 and 13.5× 11× 4.25mm3, respectively. A trade-off between the size, bandwidth and radiation efficiency is demonstrated. The larger antenna has a wider bandwidth as expected but both antennas operate well over the Australian ISM band. The radiation efficiencies of the two antennas, when implanted inside a rat, are 1.3% and 0.38%, respectively.
Keywords :
UHF antennas; biomedical telemetry; planar inverted-F antennas; prosthetics; Australian ISM band; Hilbert I-PIFA; UHF ISM band; implantable compact antennas; implantable planar inverted-F antennas; planar strip I-PIFA; radiation efficiency; size 25 mm; size 33 mm; size 7.6 mm; wireless biotelemetry; Antenna radiation patterns; Bandwidth; Coatings; Substrates; Telemetry; UHF antennas; ISM band; implantable antennas; physiological signals; wireless telemetry;
Conference_Titel :
Antenna Technology: "Small Antennas, Novel EM Structures and Materials, and Applications" (iWAT), 2014 International Workshop on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4799-2331-1
DOI :
10.1109/IWAT.2014.6958628
