Design and characterization of a dual-band miniaturized circular antenna for deep in body biomedical wireless applications

Shuoliang Ding (1) , Stavros Koulouridis (2) , Lionel Pichon (3)

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

In this paper, a novel miniaturized implantable circular antenna is presented. It supports both wireless information communication and wireless energy transmission at the Medical Device Radiocommunication band (MedRadio 402-405MHz) and the Industrial, Scientific and Medical bands (ISM 902.8-928 MHz). Antenna is circular to avoid sharp edges while miniaturization is achieved by adding two circular slots to the patch. Main scenario includes embedding into the muscle layer of a cylindrical three-layer model of a human arm for which several parameters are analyzed (resonance, radiation pattern and Special Absorption rate (SAR)). Power transmission efficiency and interaction distance limits to ensure connection are also evaluated. At last, the design is validated by an experimental measurement in an anechoic chamber, and some new improvements are proposed. Index Terms-Implantable antenna, planar inverted-F antenna, 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. Design and characterization of a dual-band miniaturized circular antenna for deep in body biomedical wireless applications. International Journal of Microwave and Wireless Technologies, 2020, pp.1-8. ⟨10.1017/S1759078720000197⟩. ⟨hal-02522677⟩