Performance evaluation of wearable antenna printed using syringe-based deposition system on fabric

International Research Advancement Network 2019

Khirotdin, R.K.^1 ; Mahadzir, M.A.^1 ; Seman, F.C.^2 ; Dahlan, S.H.^2 ; Hassan, N.^3

Additive Manufacturing Research Group, Faculty of Mechanical and Manufacturing Engineering, University of Tun Hussein Onn Malaysia, Parit Raja, Johor

86400, Malaysia^1

Faculty of Electrical and Electronics Engineering, University of Tun Hussein Onn Malaysia, Parit Raja, Johor

86400, Malaysia^2

Faculty of Technology Engineering, University of Tun Hussein Onn Malaysia, Pagoh, Muar, Johor

84600, Malaysia^3

关键词: Antenna performance;    Antenna structures;    Convex curvatures;    Deposition systems;    Humid conditions;    Polyester fabric;    Resonance frequencies;    Wearable applications;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/607/1/012010/pdf
DOI  :  10.1088/1757-899X/607/1/012010

来源: IOP

【 摘 要 】

Wearable antenna is recently known as part of clothing for communication purposes. Syringe-based deposition system had been proven capable of printing functional antenna structure but the printed antenna performances have not been discussed in details especially on resisting bending under various angles, curvature radiuses and wet conditions. Hence, this paper discusses the performance of printed antenna under various bending angles, curvature radiuses and wet conditions. The effect of several bending angles, curvature radiuses and wet conditions on resonance frequency, return loss and radiation pattern were discussed and compared accordingly with simulation. The antennas were observed to resonate best at frequency of 1.571 GHz as expected and the return loss obtained was at-20 dB that is 30% more than simulation which offers better performance. The radiation pattern obtained was as predicted since larger magnitude for the main lobe was produced than the side lobe. The antenna exhibited exceptional elasticity as it resists bending up to 30° angle and 5 cm of vertical convex curvature radius. Polyester fabric performed as a good candidate for textile wearable applications and water had only minor effect on antenna performance makes the proposed antenna suitable for humid condition.