Design of Flexible Antenna for Wearable Applications

Abstract

The proposed vivaldi antenna for wearable applications is done using flexible material. The designed antenna has the length of 8 cm and width is 6 cm. For the gain enhancement, strip lines are added in the vivaldi. There are six strip lines and the length of the strip is varied. By adding the strip line, gain of the antenna is increased compared to without strip lines. It has high gain and directivity. Poly-Ethylene Terephthalate (PET) is used as a substrate for achieving the flexibility and it has high resist to moisture. It has board range of use temperature, -60 to 130°C. For every iteration, a strip line is added one by one upto six lines. The gain and directivity of the antenna is 5.4 dB for both the parameters.