Measurement of a slot antenna backed by a textile cavity with post-walls of conductive threads

Abstract

A flexible cavity-backed slot antenna has been improved by using a post-wall structure. Arrays of conductive threads as vias between two conductive sheets of textiles are forming post-walls of the rectangular cavity. The reflection and radiation characteristics of the slot antenna have been measured for the flat case and the case of being bent. This type of antenna is flexible and wearable, so it is useful in applications of wearable electrical systems.