Complex permittivity evaluation for poly(vinyl alcohol) and poly(methyl methacrilate) at microwave frequencies by a TDR method

Abstract

The Time Domain Reflectometry (TDR) is a convenient microwave technique to perform real-time measurements. In our laboratory this technique was used to measure the relative complex permittivity of two usual polymers: Poly(vinyl alcohol) (PVA) and Poly(methyl methacrilate) (PMMA).