Design of a all-fabric higher order mode circular patch antenna for Wireless body area network application

A all-fabric higher order mode circular patch antenna for Wireless body area network is proposed. The proposed higher order mode patch antenna has the maximum radiation direction along the body surface for on-body communication in the industrial, scientific, and medical 2.45 GHz band. In order to accomplish the low profile property, the proposed antenna used shorting posts to excite TM₃₁ mode at 2.45 GHz ISM band. The proposed antenna was manufactured with fabric materials (conductive fabric, conductive thread, conductive epoxy and felt) and has a compact size. The proposed antenna has 28 mm (0.23 λ₀) of a radius and 2 mm (0.016 λ₀) of a thickness.