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학술지 Design of Implantable Rectangular Spiral Antenna for Wireless Biotelemetry in MICS Band
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저자
이재호, 서동욱, 이형수
발행일
201504
출처
ETRI Journal, v.37 no.2, pp.204-211
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.15.2314.0005
협약과제
14MC2900, 만성질환 관리를 위한 인체삽입형 생리기능 자동감시 시스템 기술 개발, 이형수
초록
For this study, we designed an implantable rectangular spiral antenna for medical biotelemetry in the Medical Implant Communications Service band (402 MHz to 405 MHz). The designed antenna has a U-shaped loop for impedance matching. The antenna impedance is easily adjusted by controlling the shape and length of the U-shaped loop. Significant design parameters were studied to understand their effects on the antenna performance. To verify the potential of the antenna for the desired applications, we fabricated a prototype and measured its performance in terms of the resonant characteristics and gain radiation patterns of the antenna. In the testing phase, the prototype antenna was embedded in human skin tissue-emulating gel, which was developed to simulate a real operation environment. The measured resonant characteristics show good agreement with the simulations, and the -10 dB frequency band is within the range of 398 MHz to 420 MHz. The antenna exhibits a maximum gain of -22.26 dBi and an antenna efficiency of 0.215%.
키워드
Implantable antenna, Medical Implant Communications Service, MICS, Rectangular spiral antenna, Wireless biotelemetry
KSP 제안 키워드
Antenna Efficiency, Antenna impedance, Antenna performance, MICS band, Medical Implant, Radiation Pattern, Skin tissue, Testing phase, U-shaped loop, Wireless biotelemetry, design parameters