Performance analysis of a modified implantable PIFA operates at MICS band for human head phantom model

Abstract

A modified design and implantable planar inverted F-antenna is examined in this paper. This design structure can be applied to improve antennas for various implantation scenarios and biomedical applications. The proposed antenna is designed for human head (scalp) phantom and analyzed the performance in bio-environment. This flexible PIFA is operated at Medical Implant Communication Service (MICS) Band (402–405 MHz). MICS band has been chosen because of its tractability towards higher bandwidth with the reducing size of the antenna. By introducing a miniature expansion, the proposed antenna gives a better resonant performance for the head phantom model. The antenna is chosen a meandered strategy for design methodology. The ultimate design has the actual dimension of 20 × 24.4mm2. This paper has monitored the results of the radiation pattern, return loss, gain at operation frequency by stabilizing all the electrical properties human tissue. All the calculations and performance measurement of this antenna have been evaluated by using CST Microwave Studio. Finally, the specific absorption rate is tested to satisfy with the antenna safety concern.