Investigation and comparsion of wearable bluetooth antennas on different textile substrates

In this paper, two different methods are used for investigation the RF characteristics of three types of textile materials. Goch, Jeans and Leather substrates are studied. A microstrip ring resonator method and DAC (Dielectric Assessment Kit) method are used. Bluetooth antennas are designed and fabricated using these substrates. The results are compared for the two methods. Finally, all antennas are fabricated using folded cupper and measured by Agilent 8719ES VNA.