With a development and an increasing interest in flexible electronics, for civil, medical, space, and military
domains, we present a design of a patch antenna using CNT-polymer ink on fabrics. We have prepared CNT
ink, and measured its properties to use as a conducting material for making patches. The antenna is designed on
cotton and Songket fabric that resonates at 2.3GHz on a 1.23 mm, and 1.06 mm thick fabric substrate with Εr ≈ 1.7, and Εr ≈ 1.9 for cotton and Songket respectively. Measured and simulation results shows that band width depends on thickness and type of fabrics we used. All antenna parameters such as VSWR, return loss, gain and radiation pattern meet the design criteria.