volume | PIER Journals

Abstract

This paper presents the ultraminiaturized implantable antenna based on a meander-line structure, specifically tailored for leadless pacemaker applications operating within the Wireless Medical Telemetry Services (WMTS) band of 1395-1400 MHz. The projected antenna has an ultraminiaturized volume of 3.25 mm³, surface area of 5 mm × 5 mm, and thickness of 0.13 mm. The substrate and superstrate were made of Rogers RO 3010 (ε_r = 10.2, tan⁡δ = 0.0035). Using a meandered line as the radiating element and including a shorting pin helps achieve impedance matching, reduces the overall antenna size, and improves the bandwidth performance. The proposed implantable antenna is validated using both homogeneous and heterogeneous heart phantoms. Experimental measurements were performed by embedding the antenna in minced pork tissue.; achieving a peak gain of -21.3 dBi and an impedance bandwidth of 360 MHz. Additionally, to ensure patient safety, Specific Absorption Rate (SAR) assessments were performed and the values are 202.52 W/kg (1-g) and 43.4 W/kg (10-g). With a 10 dB margin at 1.4 GHz, the results show that the antenna can successfully enable wireless communication at distances greater than 10 m.

1. Mohan, Archana and Niraj Kumar, "Implantable antennas for biomedical applications: A systematic review," BioMedical Engineering OnLine, Vol. 23, No. 1, 87, Aug. 2024.
doi:10.1186/s12938-024-01277-1 Google Scholar

2. Asif, Sajid M., Jared W. Hansen, Adnan Iftikhar, Daniel L. Ewert, and Benjamin D. Braaten, "Computation of available RF power inside the body and path loss using in vivo experiments," IET Microwaves, Antennas & Propagation, Vol. 13, No. 1, 122-126, Jan. 2019.
doi:10.1049/iet-map.2018.5582 Google Scholar

3. Della Rocca, Domenico G., Carola Gianni, Luigi Di Biase, Andrea Natale, and Amin Al-Ahmad, "Leadless pacemakers: State of the art and future perspectives," Cardiac Electrophysiology Clinics, Vol. 10, No. 1, 17-29, 2018.
doi:10.1016/j.ccep.2017.11.003 Google Scholar

4. Rav Acha, Moshe, Elina Soifer, and Tal Hasin, "Cardiac implantable electronic miniaturized and micro devices," Micromachines, Vol. 11, No. 10, 902, Sep. 2020.
doi:10.3390/mi11100902 Google Scholar

5. Parvez Mahmud, M. A., Nazmul Huda, Shahjadi Hisan Farjana, Mohsen Asadnia, and Candace Lang, "Recent advances in nanogenerator-driven self-powered implantable biomedical devices," Advanced Energy Materials, Vol. 8, No. 2, 1701210, 2018.
doi:10.1002/aenm.201701210 Google Scholar

6. Asif, Sajid M., Adnan Iftikhar, Benjamin D. Braaten, Daniel L. Ewert, and Keith Maile, "A wide-band tissue numerical model for deeply implantable antennas for RF-powered leadless pacemakers," IEEE Access, Vol. 7, 31031-31042, 2019.
doi:10.1109/access.2019.2902981 Google Scholar

7. Joury, Abdulaziz, Tamunoinemi Bob-Manuel, Alexandra Sanchez, Fnu Srinithya, Amber Sleem, Ayman Nasir, Abdullah Noor, Dana Penfold, Robert Bober, Daniel P. Morin, and Selim R. Krim, "Leadless and wireless cardiac devices: The next frontier in remote patient monitoring," Current Problems in Cardiology, Vol. 46, No. 5, 100800, May 2021.
doi:10.1016/j.cpcardiol.2021.100800 Google Scholar

8. 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 Google Scholar

9. Liu, Xiong Ying, Ze Tao Wu, Yi Fan, and Emmanouil M. Tentzeris, "A miniaturized CSRR loaded wide-beamwidth circularly polarized implantable antenna for subcutaneous real-time glucose monitoring," IEEE Antennas and Wireless Propagation Letters, Vol. 16, 577-580, 2016.
doi:10.1109/lawp.2016.2590477 Google Scholar

10. Li, Hua, Yong-Xin Guo, Changrong Liu, Shaoqiu Xiao, and Lin Li, "A miniature-implantable antenna for medradio-band biomedical telemetry," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 1176-1179, 2015.
doi:10.1109/lawp.2015.2396535 Google Scholar

11. He, Yejun, Yaling Chen, Long Zhang, Sai-Wai Wong, and Zhi Ning Chen, "An overview of terahertz antennas," China Communications, Vol. 17, No. 7, 124-165, Jul. 2020.
doi:10.23919/j.cc.2020.07.011 Google Scholar

12. Wang, Mengfan, Haixia Liu, Pei Zhang, Xuefang Zhang, Hong Yang, Guofei Zhou, and Long Li, "Broadband implantable antenna for wireless power transfer in cardiac pacemaker applications," IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, Vol. 5, No. 1, 2-8, 2021.
doi:10.1109/jerm.2020.2999205 Google Scholar

13. 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.
doi:10.1109/tap.2019.2908252 Google Scholar

14. Lamkaddem, Abdenasser, Ahmed El Yousfi, Kerlos Atia Abdalmalak, Vicente González Posadas, and Daniel Segovia-Vargas, "Circularly polarized miniaturized implantable antenna for leadless pacemaker devices," IEEE Transactions on Antennas and Propagation, Vol. 70, No. 8, 6423-6432, 2022.
doi:10.1109/TAP.2022.3161370 Google Scholar

15. Alghamdi, Abdulwahab, Abdul Basir, Amjad Iqbal, Roy B. V. B. Simorangkir, and Ismail Ben Mabrouk, "Compact implantable antenna with ultra-wide bandwidth for leadless pacemaker," 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI), 369-370, Firenze, Italy, 2024.
doi:10.1109/AP-S/INC-USNC-URSI52054.2024.10686083

16. Faisal, Farooq, Muhammad Zada, Hyoungsuk Yoo, Ismail Ben Mabrouk, Mohamed Chaker, and Tarek Djerafi, "An ultra-miniaturized antenna with ultra-wide bandwidth for future cardiac leadless pacemaker," IEEE Transactions on Antennas and Propagation, Vol. 70, No. 7, 5923-5928, 2022.
doi:10.1109/tap.2022.3161513 Google Scholar

17. Samsuri, N., M. Rahim, F. Seman, and M. Inam, "Compact meander line telemetry antenna for implantable pacemaker applications," Indonesian Journal of Electrical Engineering and Computer Science, Vol. 10, No. 3, 883-889, 2018.
doi:10.11591/ijeecs.v10.i3.pp883-889 Google Scholar

18. Ramzan, Mehrab, Ali Khaleghi, Xiao Fang, Qiong Wang, Niels Neumann, and Dirk Plettemeier, "An ultra-miniaturized high efficiency implanted spiral antenna for leadless cardiac pacemakers," IEEE Transactions on Biomedical Circuits and Systems, Vol. 17, No. 3, 621-632, Jun. 2023.
doi:10.1109/tbcas.2023.3285451 Google Scholar

19. 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.
doi:10.23919/EuCAP60739.2024.10501669

20. Abbas, Naeem, Abdul Basir, Amjad Iqbal, Muhammad Yousaf, Adeel Akram, and Hyoungsuk Yoo, "Ultra-miniaturized antenna for deeply implanted biomedical devices," IEEE Access, Vol. 10, 54563-54571, 2022.
doi:10.1109/access.2022.3176720 Google Scholar

21. 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, Feb. 2022.
doi:10.1038/s41598-022-06904-2 Google Scholar

Dr. Archana Mohan

Dr. Niraj Kumar