paper 150303092314

Published: 2015-07-09

Comparison Study of Layered Homogeneous Models with Detailed Human Tissue Models for Through-body Communications

Symeon Nikolaou,

Symeon Nikolaou

Frederick University, Cyprus

Homepage

Muhammad Ali Babar Abbasi,

Muhammad Ali Babar Abbasi

Frederick University, Cyprus

Homepage

Dimitris Philippou

Frederick University, Cyprus

Homepage

Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)1796-1799

Abstract

Any wireless communication between implantable antenna and an external off- body antenna suffers significant link loss due to the lossy nature of living human tissues. This link degradation is normally unpredictable and varies for different parts of the human body. To study an implantable communication scenario, complete setup is generally simulated using a full wave electromagnetic simulator. Such simulation requires human body phantoms having electrical properties such as permittivity and bulk conductivity, or even mass density similar to that of real body tissues. It has been observed that geometry of such phantoms is usually chosen as simple as possible to decrease the required computational resources and the overall time for the completion of the simulation. It is difficult to predict how much error is expected when realistic phantom is replaced by such geometrically simpler phantom. This study focuses on a comparison of the usefulness of using realistic human body phantoms over geometrically simple body phantoms for through-body communication simulation. To study this comparison, an implantable antenna, placed inside a human stomach model, is set to communicate with an off-body antenna at Medical Implant Communication Service (MICS) band. Keeping the distance between implantable antenna and off-body antenna constant, the realistic human body phantom is then replaced by two types of layered body phantoms with different complexity. Results in the form of calculated s-parameters and phantom complexity metrics are further investigated to conclude the study.

Citation

Symeon Nikolaou, Muhammad Ali Babar Abbasi, and Dimitris Philippou, "Comparison Study of Layered Homogeneous Models with Detailed Human Tissue Models for Through-body Communications," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)1796-1799

References

1. Seo, J. K. and E. J. Woo, "Electrical tissue property imaging at low frequency using MREIT," IEEE Transactions on Biomedical Engineering, Vol. 61, No. 5, 1390-1399, 2014. Google Scholar

2. Motovilova, E., J. Su, and S. Y. Huang, "MRI-based electrical property mapping for human body," IEEE International Conference on Computational Electromagnetics (ICCEM), 73-75, IEEE, 2015. Google Scholar

3. Segars, W. P. and B. M. W. Tsui, "MCAT to XCAT: The evolution of 4-D computerized phantoms for imaging research," Vol. 97, 1954-1968, 1954. Google Scholar

4. Segars Veressand, A. I., W. Paul, J. A. Weiss, B. M. W. Tsui, and G. T. Gullberg, "Normal and pathological NCAT image and phantom data based on physiologically realistic left ventricle finite-element models," IEEE Transactions on Medical Imaging, Vol. 25, No. 12, 1604-1616, 2006. Google Scholar

5. Xu, L., M. Q.-H. Meng, and Y. Chan, "Effects of dielectric parameters of human body on radiation characteristics of ingestible wireless device at operating frequency of 430 MHz," IEEE Transactions on Biomedical Engineering, Vol. 56, No. 8, 2083-2094, 2009. Google Scholar

6. Huang, S., M. Tofighi, and A. Rosen, "Considerations for the design and placement of implantable annular slot antennas for intracranial pressure monitoring devices," IEEE Antennas and Wireless Propagation Letters, Vol. 99, 2014. Google Scholar

7. Nawaz, H. and M. Ali Babar Abbasi, "On-body textile antenna design and development for body-centric wireless communication systems," 12th International Bhurban Conference on Applied Sciences and Technology (IBCAST), 650-653, 2015. Google Scholar

8. Sani, A., A. Alomainy, and Y. Hao, "Numerical characterization of the radiation from implanted wireless sources considering different digital body phantoms," 3rd European Conference on Antennas and Propagation (EuCAP), 459-461, 2009. Google Scholar

9. Kiourti, A. and K. S. Nikita, "A review of implantable patch antennas for biomedical telemetry: Challenges and solutions [wireless corner]," IEEE Antennas and Propagation Magazine, Vol. 54, No. 3, 210-228, 2012. Google Scholar