An Implantable Endoscopic Antenna for Ulcer Monitoring in ISM and 5G

This paper present a miniaturized implantable antenna targeted toward real-time medical ulcer monitoring within the body of a living person. Using a Roger 6010 substrate, it achieves efficient performances in dual operations of 2.45 GHz as well as at 3.7 GHz working at ISM and 5G bands that go hand in hand for medical sensing and data transmission applications. Antenna with tiny size of radius 4.5mm and thickness being 0.324 mm, is very easy to implant and it works very well at the biological interface. The antenna has been designed to be highly sensitive, for which the return losses of -19 dB and -15 dB for frequencies 2.45 GHz and 3.7GHz respectively. This could be an indication of effective impedance matching and low signal reflection, which are necessary for the accurate data transmission. Even though the antenna will be exposed to the lossy biological medium, there is an achievable gain of -33.27 dB and -16.44 dB, for 2.45 GHz and 3.7 GHz resulting in sufficient level of signal energy for localized data transfer. The circular polarized antenna is compact, with high-efficiency promising to be a good solution for implantable ulcer monitoring, providing dependable performance for accurate, stable monitoring within the human body.