Automated Cavity Perturbation Method for Measurement of Dielectric Constant

摘要

The cavity perturbation method is a well established technique for the measurement of dielectric properties of materials at microwave frequencies. This article presents an automated cavity perturbation technique at X-Band, using a VNA and LabVIEW software. Being an automated procedure, the method is repeatable and avoids any uncertainties of manual measurements. The computer algorithm for automation of data acquisition and the overall experimental setup is presented.