Design of a Patch Antenna Using Materials of Clothing: a Study Under Simulations

In the last decade, body-centric communications have taken on great relevance in the field of Wireless Mobile Communications and with a wide range of applications, such as medical, emergency, military, geopositioning, in the logistics industry, among others. An essential part of these applications is carried out by wearable antennas. This paper presents the design of a wearable patch antenna, using materials and accessories for clothing. The antenna has been designed to work at the 4.15 GHz frequency of the Band C (satellite systems) and which has also been studied to be implemented in 5G technologies. The radiant patch was designed with a metal button (used as an accessory in blue jeans), and the simulated dielectric substrate was made of the same jean textile material with a relative permittivity of 1.6 and a thickness of 1.56 mm. Results of the radiation pattern, gain, reflection coefficient, and efficiency under numerical analysis with specialized software. The good results of the gain stand out, being this one of 8 dBi, and the efficiency of 76.88 % was obtained.