Title :
A serpentine PIFA antenna for implantable RFID tag
Author :
M. Shahidul Islam;K. P. Esselle;S. Sabrin;K. M. Morshed;Ladislau Matekovits
Author_Institution :
Department of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW 2109, Australia
Abstract :
A serpentine planar inverted-F antenna (PIFA) is designed for Medical Implant Communications Services (MICS) band (401-406MHz) and presented in this paper. Resonance frequency of implantable antenna is generally detuned towards lower frequency due to the proximity effect of high permittivity human tissue. In addition, biocompatible coating material on the antenna also leads frequency shifting of the antenna. To overcome this frequency detuning problem, the proposed serpentine PIFA is sealed in a high dielectric constant (Silicon, εr =11.9) material. The proposed PIFA antenna is predicted to be functional in MICS band under IEEE standard safety regulation. Gain of the antenna is -33dBi.
Keywords :
"Resonant frequency","Substrates","Antenna radiation patterns","Radiofrequency identification","Microwave integrated circuits","Bandwidth"
Conference_Titel :
Antennas and Propagation (ISAP), 2015 International Symposium
