TY - GEN

T1 - Analytical calculation of the self-resonant frequency of biomedical telemetry coils

AU - Yang, Zhi

AU - Wang, Guoxing

AU - Liu, Wentai

PY - 2006

Y1 - 2006

N2 - Inductive link is commonly used in biomedical telemetry as a method to wirelessly transmit power and/or data, where coil is very critical to achieve high efficiency. One of the most important but often ignored parameters of the coils is the self-resonant frequency. Due to the fact that the parasitic capacitances are functions of the geometry and winding sequence of the coil, it is very difficult to calculate the self-resonant frequency. The lack of knowledge about the self-resonant frequency greatly limits the design efficiency, especially when the target operating frequency is high, on the order of tens of MHz. This paper presents an analytical model to calculate the self-resonant frequency of multiple-layer coils. A general model of coils to calculate the total parasitic capacitance is given first and then an analytical equation for self-resonant frequency is obtained. The experimental measurement results demonstrate that the equation can accurately predict the self-resonant frequency, therefore can be used for guiding the coil design.

AB - Inductive link is commonly used in biomedical telemetry as a method to wirelessly transmit power and/or data, where coil is very critical to achieve high efficiency. One of the most important but often ignored parameters of the coils is the self-resonant frequency. Due to the fact that the parasitic capacitances are functions of the geometry and winding sequence of the coil, it is very difficult to calculate the self-resonant frequency. The lack of knowledge about the self-resonant frequency greatly limits the design efficiency, especially when the target operating frequency is high, on the order of tens of MHz. This paper presents an analytical model to calculate the self-resonant frequency of multiple-layer coils. A general model of coils to calculate the total parasitic capacitance is given first and then an analytical equation for self-resonant frequency is obtained. The experimental measurement results demonstrate that the equation can accurately predict the self-resonant frequency, therefore can be used for guiding the coil design.

UR - http://www.scopus.com/inward/record.url?scp=34047115263&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34047115263&partnerID=8YFLogxK

U2 - 10.1109/IEMBS.2006.260469

DO - 10.1109/IEMBS.2006.260469

M3 - Conference contribution

C2 - 17946344

AN - SCOPUS:34047115263

SN - 1424400325

SN - 9781424400324

T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

SP - 5880

EP - 5883

BT - 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06

T2 - 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06

Y2 - 30 August 2006 through 3 September 2006

ER -