Miniaturized implantable power transmission system for biomedical wireless applications

Shuoliang Ding (1) , Stavros Koulouridis (2) , Lionel Pichon (1)

1 GeePs - Laboratoire Génie électrique et électronique de Paris
2 ECE - Department of Electrical and Computer Engineering [Patras]

In this paper, a complete wireless power transmission scenario is presented, including an external transmission antenna, an in-body embedded antenna, a rectifying circuit and a powered sensor. This system operates at the Industrial, Scientific and Medical bands (ISM 902.8-928 MHz). For the antenna design, important parameters including reflection coefficient, radiation pattern and SAR are presented. As for the rectifying circuit, a precise model is created utilizing off-the-shelf components. Several circuit models and components are examined in order to obtain optimum results. Finally, this work is evaluated against various sensors' power needs found in literature. Keywords-Implantable antenna, rectifying circuit, wireless power transmission, industrial, scientific and medical (ISM) band, Medical Device Radiocommunications (MedRadio) band.

Domaines: Sciences de l'ingénieur [physics]; Electromagnétisme

Shuoliang Ding, Stavros Koulouridis, Lionel Pichon. Miniaturized implantable power transmission system for biomedical wireless applications. Wireless Power Transfer, 2020, pp.1-9. ⟨10.1017/wpt.2019.16⟩. ⟨hal-02502526⟩