Development of wearable rectangular textile antenna and investigation of its performance under bent condition at different angles

In recent years, a growing interest in flexible electronic devices has been the origin of the formation of extensive research in providing the best method for the production of these tools. In this context, manufacturing of flexible textile antennas due to opportunities to integrate unique technical attributes with their applications is highly regarded by researchers. Therefore, in this paper, using inkjet printing technology with textiles and subsequently reducing it by metal nanoparticles with various deposition techniques to develop micro-layers of fabric has been suggested. It is anticipated that this method can produce electrically conductive textiles with flexibility and signal transmission in different wavelengths. According to the method in this article, after primary preparation of polyester fabric, it will print active materials with different designs at suitable operating conditions and then it will enter into the nickel electroless bath. The antenna having a conductive nickel fabric as ground plane was tested at different angles than receivers. That indicating zero degree angle relative to a line perpendicular to the surface of the antenna has the gain equal to −5.34 dB, because most of the antenna radiation field is perpendicular to the surface of the antenna. The most unsuitable degree is 90° angle, which is equal to −14.59 dB and shows that radiation from the sides of the antenna does not occur.