Embroidered textile circuits for microwave devices

A novel class of embroidered electrical textiles suitable for flexible circuits and radio frequency (RF) devices is introduced. These textiles were functionalized using electrically conductive fibers (E-fibers). The E-fibers consist of uniform metal coatings on high-strength polymer core, delivering excellent mechanical and electrical performance. These E-fibers were automatically and precisely embroidered onto textiles to form a conductive surface. High stitching density and multi-strand E-fibers were critical to achieving high conductivity for the embroidered surface. In the past, we reported on the performance of E-fiber antennas. Here, we examine the performance of RF and antenna matching circuits.