CPW ring wearable antenna on leather material for BAN applications

In this paper, the design, simulation and fabrication of a ring wearable antenna is presented for body-area-network (BAN) applications. A leather flexible textile material is used as substrate material. The dielectric constant ε
_r
= 1.79, and loss tangent tanδ = 0.042 of the leather substrate are measured by using two different methods. This is a broad-band CPW-fed monopole antenna which is designed to operate over a frequency band between 1.5-6.5 GHz. This antenna is studied in both free-space and on-body environments. This antenna is fabricated using folded cupper and measured by Agilent 8719ES VNA.