Dedicated stochastic framework for the variability analysis of compressible textile antennas

A dedicated stochastic framework to address the impact of substrate compression on the performance of textile antennas is presented. The joint probability distribution of the height and the permittivity of a compressible substrate is experimentally estimated. Then, a generalized polynomial chaos technique accurately quantifies the effect of the random variations on both substrate parameters on the figures of merit of a dual-polarized ISM textile antenna.