SAR distribution in a bio-medium in close proximity with dual segment cylindrical dielectric resonator antenna

Abstract

This paper reports simulation and experimental studies of input characteristics of a dual segment cylindrical dielectric resonator antenna (DSCDRA) in free space and in the presence of a bio-medium (synthetic muscle) along with specific absorption rate (SAR) distribution in the synthetic muscle medium due to the antenna at microwave frequencies. The simulation study has been carried out using CST Microwave Studio software. The experimental SAR distribution has been obtained using two 50 Ω L-shaped and straight coaxial probes and Agilent 3 Hz–50 GHz spectrum analyser. The experimental results for variation in return loss versus frequency for the DSCDRA and SAR distribution in synthetic muscle medium due to the antenna are compared with simulated results.

Keywords::

• DSCDRA
• Return loss bandwidth
• SAR
• Synthetic muscle

Acknowledgements

First author, Ravi Kumar Gangwar wishes to acknowledge to the Department of Electronics Engineering, IT-BHU, Varanasi and UGC, New Delhi for awarding Senior Research Fellowship. Authors wish to thank the editorial board and reviewers for their invaluable suggestions to improve the quality of the paper.

Declaration of interest: The authors report no conflicts of interest.