Abstract
An E-shaped micro strip patch antenna is designed and analyzed in this paper which operates in MICS (402.0-406.0MHz) band. The Performance has been observed on a body of human phantom model as well as in free space with different conducting material for the designed antenna. The height of this antenna is taken 1.5mm from the ground plane. At resonance frequency of 405 MHz the S11 parameter is obtained in free space is -23.26dB for conducting material of aluminum and -17.96dB is measured on human phantom body at 405 MHz of resonance frequency. FR4 is used as substrate material. The Specific Absorption Rate (SAR) is found to be 0.3562 W/kg by placing the antanna on human phantom model. VSWR and directivity has been analyzed also.
Highlights
The design of implantable patch antennas becoming more popular for dealing with issues related to biocompatibility, miniaturization and patient safety [1]
Wireless transmission is most commonly performed in the 402–405 MHz frequency band, which has been exclusively allocated for medical implant communications systems (MICSs), is internationally available and feasible with low-power circuits [6]
This paper proposed a patch antenna, whish is designed for appling medical sectors
Summary
The design of implantable patch antennas becoming more popular for dealing with issues related to biocompatibility, miniaturization and patient safety [1]. It is challenging to design an antenna to operate in human tissue considering size, bandwidth, radiation efficiency, operating frequency, SAR and VSWR [9]. This paper proposed a patch antenna, whish is designed for appling medical sectors. A phantom muscel model is created according to dielectric properties of human body for performance analysis of this designed antenna. Performance is observed by placing the antenna on a phantom muscesl model and in free space. During placing the antenna on a body model, silicon gel is used for safety. Radiation pattern and antenna performance in far field region is observed. SAR is measured for ensuring the safety in on-body applications
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