The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Scalp-Implantable Antenna for Wireless Biotelemetry

무선 Biotelemetry용 인체 이식형 안테나

  • Yoo, Hyoungsuk (School of Electrical Engineering, University of Ulsan)
  • Received : 2015.11.06
  • Accepted : 2015.11.27
  • Published : 2016.01.01
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Abstract

This paper demonstrates a scalp-implantable miniaturized antenna at the medical implant communication service (MICS) (402-405MHz) band. The antenna size is only $27.63mm^3$($8.5mm{\times}6.5mm{\times}0.5mm$), which is the smallest antenna for the MICS band. Miniaturization is achieved by using a symmetrical serpentine shaped radiating patch and placing open-end slots in the ground plane. In addition, co-axial feeding is used for excitation with a shorting pin connected between the radiator and ground. The antenna was simulated in a homogeneous skin model and in the human scalp. An experimental prototype of the proposed antenna was fabricated and measured in a skin-mimicking gel. Good agreement was obtained between the measurement and simulation results, showing a broad bandwidth of 49 MHz (from 395 to 444 MHz) for |S11| less than -10 dB and a maximum gain of -42.87 dBi. This gain is higher than the previous MICS antenna with respect to antenna size.

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References

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