Abstract
A multilayer concentric split ring with shoring pin implantable antenna has been presented in this paper for tri band medical applications. Initially, an antenna is evoked to resonate at MICS (402–405 MHz) band inside the homogeneous human muscle tissue, then optimized to achieve two more frequency band ISM (902–928 MHz) and WMTS (1395–1400 MHz). Three different technique; multi layering of radiating element, use of split ring with joint patches and the shortening pin based PIFA are implemented simultaneously to achieve the miniaturization with multiband feature. A novel rotation technique is adopted to achieve the target frequency, in this regard all radiating elements of antenna; short pin, split ring, joint patch is rotated around the z axis. Further the optimized antenna design is represented through a mathematical model for first target frequency. A parametric study of antenna impedance is carried out to characterize the behavior of antenna at three target frequency bands. The prototype of proposed antenna is fabricated and tested inside tissue mimicking liquid phantom. The results express the close agreement between model and measured reflection coefficient and radiation pattern. lastly, SAR safety limit value has been investigated at three desired frequency bands and the antenna has been found working at safe limit up to 2.75 mW power.



















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References
Solanki, L. S., Singh, S., & Singh, D. (2016). Development and modelling of the dielectric properties of tissue-mimicking phantom materials for ultra-wideband microwave breast cancer detection. Optik, 127(4), 2217–2225.
Elham Moradi, T. B., & Koski, Karoliina. (2014). Miniature implantable and wearable on-body antennas : Towards the new era of wireless body-centric systems. IEEE Antennas and Propagation Magazine., 56(1), 271–291.
“Evaluating compliance with FCC guidelines for human exposure to radiofrequency electromagnetic fields,” no. August, p. 84, 1997.
Gabriel, C., Gabriel, S., & Corthout, E. (1996). The dielectric properties of biological tissues: I. Literature survey. Physics in Medicine and Biology, 41(11), 2231–2249.
Malik, N. A., Sant, P., Ajmal, T., & Ur-Rehman, M. (2021). Implantable antennas for bio-medical applications. IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, 5(1), 84–96.
S. X. Chnagrong Liu, Yong Guo, “A review on implantable antenna for Wireless Biomedical Devices.” FERMAT, pp. 27–96, 2017.
Balanis, C. A. (2005). Antenna Theory (3rd ed.). Hoboken: Wiley.
Kiourti, A., & Nikita, K. S. (2012). Miniature scalp-implantable antennas for telemetry in the MICS and ISM bands: Design, safety considerations and link budget analysis. IEEE Transactions on Antennas and Propagation, 60(8), 3568–3575.
Soontornpipit, P., Furse, C. M., & Chung, Y. C. (2004). Design of implantable microstrip antenna for communication with medical implants. IEEE Transactions on Microwave Theory and Techniques, 52(8), 1944–1951.
Warty, R., Tofighi, M. R., Kawoos, U., & Rosen, A. (2008). Characterization of implantable antennas for intracranial pressure monitoring: Reflection by and transmission through a scalp phantom. IEEE Transactions on Microwave Theory and Techniques, 56(10), 2366–2376.
Raad, H. R., Abbosh, A. I., Al-Rizzo, H. M., & Rucker, D. G. (2013). Flexible and compact AMC based antenna for telemedicine applications. IEEE Transactions on Antennas and Propagation, 61(2), 524–531.
Garg, I., & Bhartia, Bahl. (2000). Microstrip Antenna Design Handbook (p. 845). Artech House: Bostan.
J. Abadia, F. Merli, J.-F. Zürcher, J. R. Mosig, and A. K. Skrivervik, “3D-Spiral small antenna for biomedical transmission operating within the MICS band,” EuCAP 2009. 3rd European Conference on Antennas and Propagation, pp. 1845–1849, 2009.
Gabriel, S., Lau, R. W., & Gabriel, C. (1996). The dielectric properties of biological tissues: II. Measurements in the frequency range 10 Hz to 20 GHz. Physics in Medicine and Biology, 41(11), 2251–2269.
Karacolak, T., Hood, A. Z., & Topsakal, E. (2008). Design of a dual-band implantable antenna and development of skin mimicking gels for continuous glucose monitoring. IEEE Transactions on Microwave Theory and Techniques, 56(4), 1001–1008.
Zhang, K., Liu, C., Yang, X., Liu, X., & Guo, H. (2017). An ingestible capsule system for in-body core temperature monitoring. Microwave and Optical Technology Letters, 59(10), 2670–2675.
Kiourti, A., Costa, J. R., Fernandes, C. A., & Nikita, K. S. (2014). A broadband implantable and a dual-band on-body repeater antenna: Design and transmission performance. IEEE Transactions on Antennas and Propagation, 62(6), 2899–2908.
Li, H., Guo, Y., Liu, C., Xiao, S., & Li, L. (2015). A Miniature-Implantable Antenna for MedRadio-Band Biomedical Telemetry. IEEE Antennas and Wireless Propagation Letters, 14, 1176–1179.
Li, R., & Xiao, S. (2016). Dual-resonant implantable circular patch antenna for biotelemetry communication. International Journal of Antennas and Propagation, 2016, 1–5.
Jain, L., Singh, R., Rawat, S., & Ray, K. (2018). Stacked arrangement of meandered patches for biomedical applications. International Journal of System Assurance Engineering and Management, 9(1), 139–146.
Li, R., Li, B., Du, G., Sun, X., & Sun, H. (2019). A compact broadband antenna with dual-resonance for implantable devices. Micromachines, 10(1), 59.
Usluer, M., Cetindere, B., & Basaran, S. C. (2020). Compact implantable antenna design for MICS and ISM band biotelemetry applications. Microwave and Optical Technology Letters, 62(4), 1581–1587.
Singh, G., & Kaur, J. (2021). In-silico and in-vitro testing of an implantable superstrate loaded biocompatible antenna for MICS band applications. Microwave and Optical Technology Letters, 63(3), 910–916.
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This work was supported by the R & D Infrastructure Division, Department of Science and Technology, Government of India vide Order No. FST/ET-1/2018/157 (C) dated 14/03/2019.
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Kumar, R., Singh, S. & Chauhan, A.P.S. Split Ring Inspired Tri/Dual Band PIFA Antenna for Implantable Biomedical Devices. Wireless Pers Commun 121, 687–706 (2021). https://doi.org/10.1007/s11277-021-08656-0
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DOI: https://doi.org/10.1007/s11277-021-08656-0