Design of a tri-band implantable antenna for wireless telemetry applications

In this paper, a miniaturized Egret-Beak shaped patch tri-band implantable antenna for Medical Implant Communication Services (MICS) (402-405 MHz), Wireless Medical Telemetry Service (WMTS) (1430MHz) and Industrial Scientific and Medical (ISM) (2.4-2.48GHz) band is proposed. The antenna is composed of an Egret-Beak shaped radiation patch and a ground plane. A shorting pin is directly connects from the radiating patch to the ground plane to reduce the size of the antenna. The antenna occupies a small size of 10×12mm
²
. The antenna is optimized to achieve the triple band designed antenna. The results indicates that the antenna can achieve 260MHz (74%) band for MICS, 150MHz (11%) band for WMTS and 680MHz (27%) band for ISM band. The proposed antenna (implanting in the arm) with significant impedance bandwidth and its compactness shows that the antenna is suitable for wireless telemetry applications.