Abstract
In this study, a unique microstrip implant antenna design that can be used for biotelemetry applications is proposed.
Antenna size is designed as 30 mm *28 mm*1.59 mm. In its design, FR4 base material with dielectric constant of 4.3, loss
tangent of 0.025 and height of 1.52 mm was used. The analysis of the implant antenna was performed in the CST
Microwave Studio program. After the desired values were obtained, the tissue model was created and the implant antenna
was placed in the skin tissue. The return loss and SAR value of the designed microstrip implant antenna were measured at
2.45 GHz in the ISM band. As a result of the measurements, the return loss in and out of the tissue was observed as -18 dB
and -33 dB, and the SAR value as 153 W/kg, respectively. Then, the antenna was realized with the printed circuit
technology, a phantom fluid was created showing the properties of the skin tissue, and the antenna was placed in this fluid.
Finally, the simulation and experimental results of the designed antenna were evaluated and compared with the studies in
the literature. It has been observed that the measurement results in the skin tissue are quite compatible with the simulation
results.
Keywords
Microstrip implant antenna, Biotelemetry, In-vivo application.
Citation
FATIH ALPER, OZLEM COSKUN, Design of a microstrip implant antenna for biotelemetry applications, Optoelectronics and Advanced Materials - Rapid Communications, 16, 9-10, September-October 2022, pp.430-436 (2022).
Submitted at: Oct. 26, 2021
Accepted at: Oct. 5, 2022