Design and implementation of textile antenna and their comparative analysis of performance parameters with off and on body condition

A wearable antenna is an important part of body area network (BAN) to communicate the healthcare information and secured information to the central hub. This paper presents the comparative study of rectangular shaped microstrip patch textile antenna for different conductive textile materials and conductive non-textile materials. The textile antenna is designed, evaluated using ADS 2013.06 software and measured by N9926A 14 GHz field fox handheld vector network analyser for the industrial, scientific and medical (ISM) band application operated at the resonant frequency of 2.4-2.485 GHz. These textile antennas are analysed and compared by the performance parameters like VSWR, reflection coefficient, bandwidth, impedance, directivity and gain. The results of the proposed design shows the return loss of -53.32 dB, the VSWR as 1 and 100% efficiency, narrow bandwidth, effective directional radiation pattern, 50 ohm impedance, highest gain and directivity of about 5 dB and 5 dBi.