Design and Analysis of PIFA Antenna for Biomedical Implantable Telemetry Application

In this paper, parametric analysis of co-planer spiral PIFA is carried out for implantable medical devices. The effect of antenna spiral size, PIFA and feed location has been analyzed on the resonance frequency. The antenna design is proposed to work at 2.45 GHz ISM band inside the human muscle. The antenna performance is investigated in terms of reflection coefficient, gain and radiation pattern. The proposed antenna design can also achieve UWB performance by selecting the appropriate feed location. The max gain achieved is -10.52 dB with the bandwidth of 1GHz.