Design and Analysis of Versace-Logo Antenna for Wearable Applications at 2.45 GHz ISM Band

A novel Versace-logo antenna is proposed in this paper. The antenna was optimized to operate in the industrial, scientific, and medical 2.45 GHz band. The logo prototype was studied in free space as well as on human body, showing a good and stable performance. The corresponding fractional -10dB reflection coefficient bandwidths, maximum gains, and efficiencies are 70 MHz, 3.11 dB, and 86%, respectively, in free space, and 30 MHz, 2.09 dB, and 49%, respectively, on-body. Moreover, the simulated specific absorption rate (SAR) values satisfy the standards limitations, which confirms the wearer's safety. Altogether, these features make the proposed logotype antenna a strong candidate for an unobtrusive integration in smart wearable devices such as smart bags, shoes, and accessories.