Design and Implementation of On-Body Textile Antenna for Bird Tracking at 2.4 GHz

This paper has proposed a design for an on-body textile antenna integrated with the vest along with a Wi-Fi module and a lithium battery for a tracking system. It is intended to operate at 2.4 GHz of the Industrial, Scientific, and Medical (ISM) frequency band. The substrate and radiating element of the antenna were chosen as nylon cloth and copper thread, respectively. Moreover, this study evaluated the system's ability represented by its coverage in the distance (meters) in non-line-of-sight (NLoS) and line-of-sight (LoS) conditions. The proposed wearable antenna design is discussed in detail. The prototype's experimental results have achieved the expected result. The free-space simulation has a VSWR value of 1,069, a bandwidth of 270 MHz, a gain value of 4,538 dBi, and a unidirectional radiation pattern. While in the measurement, the VSWR value obtained of 1,2 with a narrowing of the bandwidth of 70 MHz.