volume | PIER Journals

Abstract

The miniaturization of implantable antenna is one of the significant requirements, especially for those devices implanted under the skin, as it reduces prominent appearance and invasiveness. In this paper, we design, simulate, and implement a spiral resonator-based microstrip antenna utilizing the ISM band (2.4-2.48 GHz). A small size, light weight, and flat type are required for under-skin implantation. The proposed antenna dimensions were optimized for a miniaturized volume of (3 × 2.5 × 0.12) mm³, representing the smallest size for under-skin biomedical applications. This miniaturization is achieved using a spiral-shaped radiator and creating slots in the ground layer. In-vivo measurement parameters, including reflection coefficient, are measured on the suggested antenna, showing a gain of -19.9 dBi and a bandwidth of 90 MHz. Specific Absorption Rate (SAR) is evaluated at 316 W/kg, confirming that the proposed antenna meets the necessary human-use safety criteria.

1. Halperin, Daniel, Thomas S. Heydt-Benjamin, Benjamin Ransford, Shane S. Clark, Benessa Defend, Will Morgan, Kevin Fu, Tadayoshi Kohno, and William H. Maisel, "Pacemakers and implantable cardiac defibrillators: Software radio attacks and zero-power defenses," 2008 IEEE Symposium on Security and Privacy, 129-142, Oakland, CA, USA, 2008.

2. Faisal, Farooq and Hyoungsuk Yoo, "A miniaturized novel-shape dual-band antenna for implantable applications," IEEE Transactions on Antennas and Propagation, Vol. 67, No. 2, 774-783, Feb. 2019.

3. Huang, Shi-Min, Mohammad-Reza Tofighi, and Arye Rosen, "Considerations for the design and placement of implantable annular slot antennas for intracranial pressure monitoring devices," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 1514-1517, 2014.

4. Bisignani, Antonio, Silvana De Bonis, Luigi Mancuso, Gianluca Ceravolo, and Giovanni Bisignani, "Implantable loop recorder in clinical practice," Journal of Arrhythmia, Vol. 35, No. 1, 25-32, 2019.

5. Mahn, Terry G. and K. A. Barritt, Wireless medical technologies: Navigating government regulation in the new medical age, Fish’s Regulatory & Government Affairs Group, 2013.

6. Feng, Yang, Zhaonan Li, Lin Qi, Wanting Shen, and Gaosheng Li, "A compact and miniaturized implantable antenna for ISM band in wireless cardiac pacemaker system," Scientific Reports, Vol. 12, No. 1, 238, 2022.

7. Zada, Muhammad and Hyoungsuk Yoo, "A miniaturized triple-band implantable antenna system for bio-telemetry applications," IEEE Transactions on Antennas and Propagation, Vol. 66, No. 12, 7378-7382, Dec. 2018.

8. Huang, Ziyang, Hao Wu, Seedahmed S. Mahmoud, and Qiang Fang, "Design of a novel compact MICS band PIFA antenna for implantable biotelemetry applications," Sensors, Vol. 22, No. 21, 8182, 2022.
doi:10.3390/s22218182

9. Kumar, Rajeev and Surinder Singh, "CPW-fed conformal PIFA design for implantable IoMT devices with wideband performance," IEEE Sensors Journal, Vol. 24, No. 1, 231-237, 2024.

10. Scarpello, Maria Lucia, Divya Kurup, Hendrik Rogier, Dries Vande Ginste, Fabrice Axisa, Jan Vanfleteren, Wout Joseph, Luc Martens, and Gunter Vermeeren, "Design of an implantable slot dipole conformal flexible antenna for biomedical applications," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 10, 3556-3564, 2011.

11. Song, Zhiwei, Xiaoming Xu, Yuchao Wang, Youwei Shi, Xianren Zheng, and Lu Wang, "Design of a miniaturized dual circularly polarized implantable antenna by using characteristic mode method," Scientific Reports, Vol. 14, No. 1, 16384, 2024.

12. Alghamdi, Abdulwahab, Abdullah Alshammari, Liu Chang, Amjad Iqbal, and Ismail Ben Mabrouk, "Miniaturized implantable antenna with ultra-wide bandwidth characteristics for leadless pacemakers," 2024 18th European Conference on Antennas and Propagation (EuCAP), 1-5, Glasgow, United Kingdom, 2024.

13. Gupta, Anupma, Vipan Kumar, Shonak Bansal, Mohammed H. Alsharif, Abu Jahid, and Ho-Shin Cho, "A miniaturized tri-band implantable antenna for ISM/WMTS/Lower UWB/Wi-Fi frequencies," Sensors, Vol. 23, No. 15, 6989, 2023.
doi:10.3390/s23156989

14. Hayat, Shahzeb, Syed Ahson Ali Shah, and Hyoungsuk Yoo, "Miniaturized dual-band circularly polarized implantable antenna for capsule endoscopic system," IEEE Transactions on Antennas and Propagation, Vol. 69, No. 4, 1885-1895, Apr. 2021.

15. Song, Zhiwei and Mengke Li, "Ultra-wideband circular polarized implantable patch antenna for implantable blood glucose detection system applications," Sensors, Vol. 24, No. 16, 5292, 2024.
doi:10.3390/s24165292

16. Shah, Izaz Ali, Muhammad Zada, and Hyoungsuk Yoo, "Design and analysis of a compact-sized multiband spiral-shaped implantable antenna for scalp implantable and leadless pacemaker systems," IEEE Transactions on Antennas and Propagation, Vol. 67, No. 6, 4230-4234, 2019.

17. Yousaf, Muhammad, Ismail Ben Mabrouk, Muhammad Zada, Adeel Akram, Yasar Amin, Mourad Nedil, and Hyoungsuk Yoo, "An ultra-miniaturized antenna with ultra-wide bandwidth characteristics for medical implant systems," IEEE Access, Vol. 9, 40086-40097, 2021.

18. Zada, Muhammad, Izaz Ali Shah, Abdul Basir, and Hyoungsuk Yoo, "Ultra-compact implantable antenna with enhanced performance for leadless cardiac pacemaker system," IEEE Transactions on Antennas and Propagation, Vol. 69, No. 2, 1152-1157, Feb. 2021.

19. Sharma, Deepti, Binod Kumar Kanaujia, Vikrant Kaim, Raj Mittra, Ravi Kumar Arya, and Ladislau Matekovits, "Design and implementation of compact dual-band conformal antenna for leadless cardiac pacemaker system," Scientific Reports, Vol. 12, No. 1, 3165, 2022.

20. Shahverdi, Kaveh, Soheil Hashemi, Sadaf Sarafan, and Hung Cao, "Triple-band implantable antenna design for biotelemetry applications in MICS/ISM/Wi-Fi/Bluetooth bands," Technologies, Vol. 10, No. 4, 91, 2022.

21. Mosavinejad, Seyed Saeid, Pejman Rezaei, Ali Akbar Khazaei, and Jalil Shirazi, "A triple-band spiral-shaped antenna for high data rate fully passive implantable devices," AEU --- International Journal of Electronics and Communications, Vol. 159, 154474, 2023.

22. Sharma, Deepti, Binod Kumar Kanaujia, Sachin Kumar, Karumudi Rambabu, and Ladislau Matekovits, "Low-loss MIMO antenna wireless communication system for 5G cardiac pacemakers," Scientific Reports, Vol. 13, No. 1, 9557, 2023.

23. Alshammari, Abdullah, Amjad Iqbal, Abdul Basir, Roy B. V. B. Simorangkir, and Ismail Ben Mabrouk, "Ultra-miniaturized dual-band implantable antenna for wireless capsule endoscopy," IEEE Sensors Journal, Vol. 24, No. 9, 15210-15218, 2024.

24. Lamkaddem, Abdenasser, Ahmed El Yousfi, Vicente González-Posadas, and Daniel Segovia-Vargas, "Miniaturized dual band implantable antenna for implanted biomedical devices," IEEE Access, Vol. 12, 15026-15036, 2024.

25. Faisal, Farooq, Ahmed Moulay, Mohamed Chaker, and Tarek Djerafi, "Efficient wireless power transfer to an ultra-miniaturized antenna for future cardiac leadless pacemaker," 2024 18th European Conference on Antennas and Propagation (EuCAP), 1-4, Glasgow, United Kingdom, 2024.

26. Brandão, Pedro and Jean Bacon, "Body sensor networks: Can we use them?," Proceedings of the International Workshop on Middleware for Pervasive Mobile and Embedded Computing, 1-6, New York, NY, USA, 2009.

27. Das, Soumyadeep and Debasis Mitra, "A compact wideband flexible implantable slot antenna design with enhanced gain," IEEE Transactions on Antennas and Propagation, Vol. 66, No. 8, 4309-4314, 2018.

28. Xu, Li-Jie, Yong-Xin Guo, and Wen Wu, "Bandwidth enhancement of an implantable antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 1510-1513, 2014.

29. Lin, Ho-Yu, Masaharu Takahashi, Kazuyuki Saito, and Koichi Ito, "Performance of implantable folded dipole antenna for in-body wireless communication," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 3, 1363-1370, 2013.

30. Soliman, Md. Mohiuddin, Muhammad E. H. Chowdhury, Amith Khandakar, Mohammad Tariqul Islam, Yazan Qiblawey, Farayi Musharavati, and Erfan Zal Nezhad, "Review on medical implantable antenna technology and imminent research challenges," Sensors, Vol. 21, No. 9, 3163, May 2021.
doi:10.3390/s21093163

31. Arora, Govind, Paramjot Maman, Ameya Sharma, Nitin Verma, and Vivek Puri, "Systemic overview of microstrip patch antenna’s for different biomedical applications," Advanced Pharmaceutical Bulletin, Vol. 11, No. 3, 439-449, 2021.
doi:10.34172/apb.2021.051

32. Damaj, Adel W., Hilal M. El Misilmani, and Soubhi Abou Chahine, "Implantable antennas for biomedical applications: An overview on alternative antenna design methods and challenges," 2018 International Conference on High Performance Computing & Simulation (HPCS), 31-37, Orleans, France, 2018.

Ms. Marwah M. Hassooni

Dr. Jabir S. Aziz

Dr. Ashwaq Q. Hameed