Design and Optimization of Printed Circuit Board Inductors for Wireless Power Transfer System


Wireless power transfer via inductive link is becoming a popular choice as an alternate powering scheme for biomedical sensor electronics. Spiral printed circuit board (PCB) inductors are gaining attractions for wireless power transfer applications due to their various advantages over conventional inductors such as low-cost, batch fabrication, durability, manufacturability on flexible substrates, etc. In this work, design of a multi-spiral stacked solenoidal inductor for biomedical application in 13.56 MHz band is presented. Proposed stacking method enhances the inductance density of the inductor for a given area. This paper reports an optimization technique for design and implementation of the PCB inductors. The proposed scheme shows higher inductance and better figure-of-merit values compared to PCB inductors reported in literature, which are desirable for wireless power transfer system.

Share and Cite:

A. Islam, S. Islam and F. Tulip, "Design and Optimization of Printed Circuit Board Inductors for Wireless Power Transfer System," Circuits and Systems, Vol. 4 No. 2, 2013, pp. 237-244. doi: 10.4236/cs.2013.42032.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] S. A. Jaffari and A. P. F. Turner, “Recent Advances in Amperometric Glucose Biosensors for in Vivo Monitoring,” Physiological Measurement, Vol. 16, No. 1, 1995, pp. 1-15. doi:10.1088/0967-3334/16/1/001
[2] E. Renard, “Implantable Glucose Sensors for Diabetes Monitoring,” Minimally Invasive Therapy & Allied Technologies, Vol. 13, No. 2, 2004, pp. 78-86. doi:10.1080/13645700410026993
[3] M. Zhang, M. R. Haider, M. A. Huque, M. A. Adeeb, S. R. Rahman and S. K. Islam, “A Low Power Sensor Signal Processing Circuit for Implantable Biosensor Applications,” Smart Materials & Structures, Vol. 16, No. 2, 2007, pp. 525-530. doi:10.1088/0964-1726/16/2/034
[4] D. A. Baker and D. A. Gough, “A Continuous, Implant able Lactate Sensor,” Analytical Chemistry, Vol. 67, No. 9, 1995, pp. 1536-1540. doi:10.1021/ac00105a010
[5] C. Hierold, B. Clasbrummel, D. Behrend, T. Scheiter, M. Steger, K. Oppermann, H. Kapels, E. Landgraf, D. Wenzel and D. Etzrodt, “Low Power Integrated Pressure Sensor System for Medical Applications,” Sensors and Actuators A-Physical, Vol. 73, No. 1-2, 1999, pp. 58-67. doi:10.1016/S0924-4247(98)00255-6
[6] R. Bashirullah, “Wireless Implants,” IEEE Microwave Magazine, Vol. 11, No. 7, 2010, pp. S14-S23. doi:10.1109/MMM.2010.938579
[7] C. Sauer, M. Stanacevic, G. Cauwenberghs and N. Thakor, “Power Harvesting and Telemetry in CMOS for Implanted Devices,” IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 52, No. 12, 2005, pp. 2605-2613.
[8] M. M. Ahmadi and G. A. Jullien, “A Wireless-Implant able Microsystem for Continuous Blood Glucose Monitoring,” IEEE Transactions on Biomedical Circuits and Systems, Vol. 3, No. 3, 2009, pp. 169-180. doi:10.1109/TBCAS.2009.2016844
[9] A. M. Sodagar, K. D. Wise and K. Najafi, “A Wireless Implantable Microsystem for Multichannel Neural Re cording,” IEEE Transactions on Microwave Theory and Techniques, Vol. 57, No. 10, 2009, pp. 2565-2573. doi:10.1109/TMTT.2009.2029957
[10] J. Masuch and M. Delgado-Restituto, “Design Constraints for the Inductive Power and Data Link of an Implanted Body Sensor,” Proceedings of the European Conference on Circuit Theory and Design, Antalya, 23-27 August 2009, pp. 425-428.
[11] M. AhsanulAdeeb, “A Class E Inductive Powering Link with Backward Data Communication for Implantable Sensor Systems,” Ph.D. Thesis, The University of Tennessee, Knoxville, 2006.
[12] J. Uei-Ming and M. Ghovanloo, “Design and Optimization of Printed Spiral Coils for Efficient Inductive Power Transmission,” Proceedings of the 14th IEEE International Conference on Electronics, Circuits and Systems, Marrakech, 11-14 December 2007, pp. 70-73.
[13] M. R. Shah, R. P. Phillips and R. A. Normann, “A Study of Printed Spiral Coils for Neuroprosthetic Transcranial Telemetry Applications,” IEEE Transactions on Biomedical Engineering, Vol. 45, No. 7, 1998, pp. 867-876. doi:10.1109/10.686794
[14] J. A. Von Arx and K. Najafi, “A Wireless Single-Chip Telemetry-Powered Neural Stimulation System,” IEEE Proceedings of the International Solid-State Circuits Conference, 1999, pp. 214-215.
[15] S. Kim, M. Wilke, M. Klein, M. Toepper and F. Solzbacher, “Electromagnetic Compatibility of Two Novel Packaging Concepts of an Inductively Powered Neural Interface,” Proceedings of the 3rd International IEEE/ EMBS Conference on Neural Engineering, Kohala Coast, 2-5 May 2007, pp. 434-437.
[16] F. C. Commission, “Guidelines for Evaluating the Environmental Effects of Radio Frequency Radiation,” 1996.
[17] Sonnet, “Sonnet Software,” 12.56 Edition, 2010.
[18] F. W. Grover, “Inductance Calculations,” Van Nostrand, Princeton, 1946.
[19] E. B. Rosa, “The Self and Mutual Inductances of Linear Conductors,” Bulletin of the Bureau of Standards, Vol. 4, No. 2, 1908, pp. 301-344. doi:10.6028/bulletin.088
[20] S. S. Mohan, M. M. Hershenson, S. P. Boyd and T. H. Lee, “Simple Accurate Expressions for Planar Spiral Inductances,” IEEE Journal of Solid-State Circuits, Vol. 34, No. 10, 1999, pp. 1419-1424. doi:10.1109/4.792620
[21] H. Greenhouse, “Design of Planar Rectangular Microelectronic Inductors,” IEEE Transactions on Parts, Hybrids, and Packaging, Vol. 10, No. 2, 1974, pp. 101-109. doi:10.1109/TPHP.1974.1134841
[22] C.-M. Tai and C.-N. Liao, “Multilevel Suspended Thin Film Inductors on Silicon Wafers,” IEEE Transactions on Electron Devices, Vol. 54, No. 6, 2007, pp. 1510-1514. doi:10.1109/TED.2007.896347
[23] C. Peters and Y. Manoli, “Inductance Calculation of Planar Multi-Layer and Multi-Wire Coils: An Analytical Approach,” Sensors and Actuators A-Physical, Vol. 145-146, 2008, pp. 394-404. doi:10.1016/j.sna.2007.11.003

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.