A High Gain Low-profile Implantable Antenna for Medical Applications

This paper presents a compact-sized rectangular slotted patch antenna which operates over Industrial, Scientific, and Medical (ISM) (2.40-2.48 GHz) band. This implantable antenna is fed by coaxial feed of $\mathbf{50}\ \Omega$ . It is kept in phantom skin tissue of dimensions $\mathbf{50x50x50}\ mm^{3}$ . Simulation of this antenna is carried out through the High Frequency Structure Simulator (HFSS). By employing the shorting pin and open-ended slots; the proposed antenna has obtained an effective size reduction at a fixed frequency operation. As a result, the obtained peak gain is −14 dB and bandwidth is 290 MHz. The results show that the proposed antenna has effective size reduction, excellent performance, and Bandwidth due to which the antenna is used in Biotelemetry application.