Savcı, Hüseyin ŞerifKaburcuk, Fatih2023-12-132023-12-132023Savcı, H. Ş. ve Kaburcuk, F. (2023). FDTD-based SAR calculation of a wearable antenna for wireless body area network devices. International Journal of Microwave and Wireless Technologies, 15(8), 1354-1360. https://dx.doi.org/10.1017/S17590787220012831759-0787https://dx.doi.org/10.1017/S1759078722001283https://hdl.handle.net/20.500.12511/11987Wireless-connected wearable electronics are finding extensive usage for diagnostic and therapeutic purposes after the globally spread pandemic disease of COVID-19. Although they are undoubtedly helpful for keeping physical distance, their health effects are still under investigation from different aspects and are still a concern for the end-users. In this study, a custom M-shaped wearable antenna covering the wireless body area network and wireless local area network frequencies is designed, built, and measured. A beret cap made from a 2 mm thick textile is used as a substrate. The specific absorption rate (SAR) in a realistic human-head model due to electromagnetic energy produced by the antenna is evaluated using the finite-difference time-domain method. The SAR distributions for 1-g and 10-g tissues are calculated at 2.4 and 5.8 GHz. It is shown that the obtained maximum SAR values for 1-g and 10-g tissues at each frequency of interest were less than the limits determined by IEEE RF exposure guidelines and standards.enAttribution 4.0 Internationalinfo:eu-repo/semantics/openAccessAntenna on TextileFinite Difference Time Domain (FDTD)Specific Absorption Rate (SAR)Wearable AntennasWireless Body Area NetworkArticle1581354136010.1017/S1759078722001283Q40011018384000112-s2.0-85177862129Q3